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alloy</title> <meta name="description" content="Search results for: nickel alloy"> <meta name="keywords" content="nickel alloy"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="nickel alloy"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 1109</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: nickel alloy</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1109</span> Production of Hard Nickel Particle Reinforced Ti6Al4V Matrix Composites by Hot Pressing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ridvan%20Yamanoglu">Ridvan Yamanoglu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the current study, titanium based composites reinforced by hard nickel alloy particles were produced. Powder metallurgical hot pressing technique was used for the fabrication of composite materials. The composites containing different ratio of hard nickel particles were sintered at 900 oC for 15 and 30 minutes under 50 MPa pressure. All titanium based composites were obtained under a vacuum atmosphere of 10-4 mbar to prevent of oxidation of titanium due to its high reactivity to oxygen. The microstructural characterization of the composite samples was carried out by optical and scanning electron microscopy. The mechanical properties of the samples were determined by means of hardness and wear tests. The results showed that when the nickel particle content increased the mechanical properties of the composites enhanced. The results are discussed in detail and optimum nickel particle content were determined. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=titanium" title="titanium">titanium</a>, <a href="https://publications.waset.org/abstracts/search?q=composite" title=" composite"> composite</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel" title=" nickel"> nickel</a>, <a href="https://publications.waset.org/abstracts/search?q=hot%20pressing" title=" hot pressing"> hot pressing</a> </p> <a href="https://publications.waset.org/abstracts/89265/production-of-hard-nickel-particle-reinforced-ti6al4v-matrix-composites-by-hot-pressing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/89265.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">173</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1108</span> X-Ray Photoelectron Spectroscopy Analyses of Candidate Materials for Advanced Nuclear Reactors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Marie%20Kudrnov%C3%A1">Marie Kudrnová</a>, <a href="https://publications.waset.org/abstracts/search?q=Jana%20Rejkov%C3%A1"> Jana Rejková</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The samples of supplied INCONEL 601, 617, 625, and HASTELLOY C-22 alloys and experimental nickel alloy MoNiCr were examined by XPS (X-ray photoelectron spectroscopy) before and after exposure. The experiment was performed in a mixture of LiCl-KCl salt (58.2-41.8 wt. %). The exposure conditions were 440°C, pressure 0.2 MPa, 500 hours in an inert argon atmosphere. The XPS analysis shows that a thin oxide layer composed of metal oxides such as NiO, Cr₂O₃, and Nb₂O₅ was formed. After sputtering the exposed surface with Ar ions, metals were also detected in the elemental state, indicating a very thin protective oxide layer with a thickness in units of up to tens of nanometers. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=XPS" title="XPS">XPS</a>, <a href="https://publications.waset.org/abstracts/search?q=MSR" title=" MSR"> MSR</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel%20alloy" title=" nickel alloy"> nickel alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=metal%20oxides" title=" metal oxides"> metal oxides</a> </p> <a href="https://publications.waset.org/abstracts/143886/x-ray-photoelectron-spectroscopy-analyses-of-candidate-materials-for-advanced-nuclear-reactors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/143886.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">78</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1107</span> Characterization of Zn-Ni Alloy Elaborated Under Low and High Magnetic Field Immersed in Corrosive Medium</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sabiha%20Chouchane">Sabiha Chouchane</a>, <a href="https://publications.waset.org/abstracts/search?q=Azzedine%20Hani"> Azzedine Hani</a>, <a href="https://publications.waset.org/abstracts/search?q=Jean-Paul%20Chopart"> Jean-Paul Chopart</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20Levesque"> Alexandra Levesque</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The electrodeposition of Zn-Ni alloy is mostly studied for its high degree of corrosion and mechanical properties. In this work, the zinc–nickel alloy coatings elaborated from sulfate bath have been carried out under low and high applied magnetic field. The effect of alloy stuctural parameters upon corrosion behavior is studied. It has been found that the magnetically induced convection changes the phase composition, promoting the zinc phase in spite of the γ-Ni₅Zn₂₁. Low magnetic field acts also on the morphology of the deposits as a levelling agent and a refiner by lowering the deposit roughness Ra and the spot size. For alloy obtained with low magnetic field (up to 1T) superimposition, surface morphology modification has no significant influence on corrosion behavior whereas for low nickel content alloy, the modification of phase composition, induced by applied magnetic field, favours higher polarization resistance. When high magnetic field amplitude is involved (up to12T), the phase composition modifications are the same that for low applied B and the morphology is not largely modified. In this case, the hydrogen reduction current dramatically decreases that leads to a large shift of the corrosion potential. It is suggested that the surface reactivity of electrodeposited alloys depends on the magnetically induced convection that is efficient during the codeposition process. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=magnetic%20field" title="magnetic field">magnetic field</a>, <a href="https://publications.waset.org/abstracts/search?q=Zn-Ni%20alloy" title=" Zn-Ni alloy"> Zn-Ni alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion" title=" corrosion"> corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosive%20medium" title=" corrosive medium"> corrosive medium</a> </p> <a href="https://publications.waset.org/abstracts/184683/characterization-of-zn-ni-alloy-elaborated-under-low-and-high-magnetic-field-immersed-in-corrosive-medium" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/184683.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">50</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1106</span> Structural Evolution of Electrodeposited Ni Coating on Ti-6Al-4V Alloy during Heat Treatment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Abdoos">M. Abdoos</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Amadeh"> A. Amadeh</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Adabi"> M. Adabi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In recent decades, the use of titanium and its alloys due to their high mechanical properties, light weight and their corrosion resistance has increased in military and industry applications. However, the poor surface properties can limit their widely usage. Many researches were carried out to improve their surface properties. The most effective technique is based on solid-state diffusion of elements that can form intermetallic compounds with the substrate. In the present work, inter-diffusion of nickel and titanium and formation of Ni-Ti intermetallic compounds in nickel-coated Ti-6Al-4V alloy have been studied. Initially, nickel was electrodeposited on the alloy using Watts bath at a current density of 20 mA/cm2 for 1 hour. The coated specimens were then heat treated in a tubular furnace under argon atmosphere at different temperatures near Ti β-transus to maximize the diffusion rate for various durations in order to improve the surface properties of the Ti-6Al-4V alloy. The effect of temperature and time on the thickness of diffusion layer and characteristics of intermetallic phases was studied by means of scanning electron microscope (SEM) equipped with energy dispersive X-ray spectrometer (EDS) and microhardness test. The results showed that a multilayer structure was formed after heat treatment: an outer layer of remaining nickel, an area of intermetallic layers with different compositions and solid solution of Ni-Ti. Three intermetallic layers was detected by EDS analysis, namely an outer layer with about 75 at.% Ni (Ni3Ti), an intermediate layer with 50 at.% Ni (NiTi) and finally an inner layer with 36 at.% Ni (NiTi2). It was also observed that the increase in time or temperature led to the formation of thicker intermetallic layers. Meanwhile, the microhardness of heat treated samples increased with formation of Ni-Ti intermetallics; however, its value depended on heat treatment parameters. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=heat%20treatment" title="heat treatment">heat treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=microhardness" title=" microhardness"> microhardness</a>, <a href="https://publications.waset.org/abstracts/search?q=Ni%20coating" title=" Ni coating"> Ni coating</a>, <a href="https://publications.waset.org/abstracts/search?q=Ti-6Al-4V" title=" Ti-6Al-4V"> Ti-6Al-4V</a> </p> <a href="https://publications.waset.org/abstracts/24481/structural-evolution-of-electrodeposited-ni-coating-on-ti-6al-4v-alloy-during-heat-treatment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24481.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">434</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1105</span> Process Optimisation for Internal Cylindrical Rough Turning of Nickel Alloy 625 Weld Overlay</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lydia%20Chan">Lydia Chan</a>, <a href="https://publications.waset.org/abstracts/search?q=Islam%20Shyha"> Islam Shyha</a>, <a href="https://publications.waset.org/abstracts/search?q=Dale%20Dreyer"> Dale Dreyer</a>, <a href="https://publications.waset.org/abstracts/search?q=John%20Hamilton"> John Hamilton</a>, <a href="https://publications.waset.org/abstracts/search?q=Phil%20Hackney"> Phil Hackney</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nickel-based superalloys are generally known to be difficult to cut due to their strength, low thermal conductivity, and high work hardening tendency. Superalloy such as alloy 625 is often used in the oil and gas industry as a surfacing material to provide wear and corrosion resistance to components. The material is typically applied onto a metallic substrate through weld overlay cladding, an arc welding technique. Cladded surfaces are always rugged and carry a tough skin; this creates further difficulties to the machining process. The present work utilised design of experiment to optimise the internal cylindrical rough turning for weld overlay surfaces. An L27 orthogonal array was used to assess effects of the four selected key process variables: cutting insert, depth of cut, feed rate, and cutting speed. The optimal cutting conditions were determined based on productivity and the level of tool wear. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cylindrical%20turning" title="cylindrical turning">cylindrical turning</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel%20superalloy" title=" nickel superalloy"> nickel superalloy</a>, <a href="https://publications.waset.org/abstracts/search?q=turning%20of%20overlay" title=" turning of overlay"> turning of overlay</a>, <a href="https://publications.waset.org/abstracts/search?q=weld%20overlay" title=" weld overlay"> weld overlay</a> </p> <a href="https://publications.waset.org/abstracts/68773/process-optimisation-for-internal-cylindrical-rough-turning-of-nickel-alloy-625-weld-overlay" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/68773.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">374</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1104</span> Simulation of Low Cycle Fatigue Behaviour of Nickel-Based Alloy at Elevated Temperatures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Harish%20Ramesh%20Babu">Harish Ramesh Babu</a>, <a href="https://publications.waset.org/abstracts/search?q=Marco%20B%C3%B6cker"> Marco Böcker</a>, <a href="https://publications.waset.org/abstracts/search?q=Mario%20Raddatz"> Mario Raddatz</a>, <a href="https://publications.waset.org/abstracts/search?q=Sebastian%20Henkel"> Sebastian Henkel</a>, <a href="https://publications.waset.org/abstracts/search?q=Horst%20Biermann"> Horst Biermann</a>, <a href="https://publications.waset.org/abstracts/search?q=Uwe%20Gampe"> Uwe Gampe</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Thermal power machines are subjected to cyclic loading conditions under elevated temperatures. At these extreme conditions, the durability of the components has a significant influence. The material mechanical behaviour has to be known in detail for a failsafe construction. For this study a nickel-based alloy is considered, the deformation and fatigue behaviour of the material is analysed under cyclic loading. A viscoplastic model is used for calculating the deformation behaviour as well as to simulate the rate-dependent and cyclic plasticity effects. Finally, the cyclic deformation results of the finite element simulations are compared with low cycle fatigue (LCF) experiments. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=complex%20low%20cycle%20fatigue" title="complex low cycle fatigue">complex low cycle fatigue</a>, <a href="https://publications.waset.org/abstracts/search?q=elevated%20temperature" title=" elevated temperature"> elevated temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=fe-simulation" title=" fe-simulation"> fe-simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=viscoplastic" title=" viscoplastic"> viscoplastic</a> </p> <a href="https://publications.waset.org/abstracts/128156/simulation-of-low-cycle-fatigue-behaviour-of-nickel-based-alloy-at-elevated-temperatures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/128156.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">234</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1103</span> Evaluation of Salivary Nickel Level During Orthodontic Treatment </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mudafara%20S.%20Bengleil">Mudafara S. Bengleil</a>, <a href="https://publications.waset.org/abstracts/search?q=Juma%20M.%20Orfi"> Juma M. Orfi</a>, <a href="https://publications.waset.org/abstracts/search?q=Iman%20Abdelgader"> Iman Abdelgader</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Since nickel is a known toxic and carcinogenic metal, the present study was designed to evaluate the level of nickel released into the saliva of orthodontic patients. Non-stimulated saliva was collected from 18 patients attending The Orthodontic Clinic of Dental Faculty of Benghazi University. Patients were divided into two groups and level of nickel was determined by atomic absorption spectrophotometry. Nickel concentration values (mg/L) in first group prior to starting treatment was 0.097± 0.071. An increase in level of nickel was followed by decrease 4 and 8 weeks after applying the arch wire (0.208± 0.112) and (0.077±0.056 mg/L) respectively. Nickel levels in saliva of the second group were showed minimal variation and ranged from 0.061± 0.044mg/L to 0.083±0.054 throughout period of study. It may be concluded that there could be a release of nickel from the appliance used in first group but it doesn't reach toxic level in saliva. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=atomic%20absorption%20spectrophotometry" title="atomic absorption spectrophotometry">atomic absorption spectrophotometry</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel" title=" nickel"> nickel</a>, <a href="https://publications.waset.org/abstracts/search?q=orthodontic%20treatment" title=" orthodontic treatment"> orthodontic treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=saliva" title=" saliva"> saliva</a>, <a href="https://publications.waset.org/abstracts/search?q=toxicity" title=" toxicity"> toxicity</a> </p> <a href="https://publications.waset.org/abstracts/4393/evaluation-of-salivary-nickel-level-during-orthodontic-treatment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4393.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">350</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1102</span> Copper Doped P-Type Nickel Oxide Transparent Conducting Oxide Thin Films</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kai%20Huang">Kai Huang</a>, <a href="https://publications.waset.org/abstracts/search?q=Assamen%20Ayalew%20Ejigu"> Assamen Ayalew Ejigu</a>, <a href="https://publications.waset.org/abstracts/search?q=Mu-Jie%20Lin"> Mu-Jie Lin</a>, <a href="https://publications.waset.org/abstracts/search?q=Liang-Chiun%20Chao"> Liang-Chiun Chao</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nickel oxide and copper-nickel oxide thin films have been successfully deposited by reactive ion beam sputter deposition. Experimental results show that nickel oxide deposited at 300°C is single phase NiO while best crystalline quality is achieved with an O_pf of 0.5. XRD analysis of nickel-copper oxide deposited at 300°C shows a Ni2O3 like crystalline structure at low O_pf while changes to NiO like crystalline structure at high O_pf. EDS analysis shows that nickel-copper oxide deposited at low O_pf is CuxNi2-xO3 with x = 1, while nickel-copper oxide deposited at high O_pf is CuxNi1-xO with x = 0.5, which is supported by Raman analysis. The bandgap of NiO is ~ 3.5 eV regardless of O_pf while the band gap of nickel-copper oxide decreases from 3.2 to 2.3 eV as Opf reaches 1.0. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=copper" title="copper">copper</a>, <a href="https://publications.waset.org/abstracts/search?q=ion%20beam" title=" ion beam"> ion beam</a>, <a href="https://publications.waset.org/abstracts/search?q=NiO" title=" NiO"> NiO</a>, <a href="https://publications.waset.org/abstracts/search?q=oxide" title=" oxide"> oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=resistivity" title=" resistivity"> resistivity</a>, <a href="https://publications.waset.org/abstracts/search?q=transparent" title=" transparent"> transparent</a> </p> <a href="https://publications.waset.org/abstracts/58525/copper-doped-p-type-nickel-oxide-transparent-conducting-oxide-thin-films" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/58525.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">312</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1101</span> Electrodeposition of Nickel-Zinc Alloy on Stainless Steel in a Magnetic Field in a Chloride Environment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Naima%20Benachour">Naima Benachour</a>, <a href="https://publications.waset.org/abstracts/search?q=Sabiha%20Chouchane"> Sabiha Chouchane</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Paul%20Chopart"> J. Paul Chopart</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this work is to determine the appropriate conditions for a Ni-Zn deposit with good nickel content. The electrodeposition of zinc-nickel on a stainless steel is carried out in a chlorinated bath NiCl2.6H2O, ZnCl2, and H3BO3), whose composition is 1.1 M; 1.8 M; 0.1 M respectively. Studies show the effect of the concentration of NH4Cl, which reveals a significant effect on the reduction and ion transport in the electrolyte. In order to highlight the influence of magnetic field on the chemical composition and morphology of the deposit, chronopotentiometry tests were conducted, the curves obtained inform us that the application of a magnetic field promotes stability of the deposit. Characterization developed deposits was performed by scanning electron microscopy coupled with EDX and specified by the X-ray diffraction. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zn-Ni%20alloys" title="Zn-Ni alloys">Zn-Ni alloys</a>, <a href="https://publications.waset.org/abstracts/search?q=electroplating" title=" electroplating"> electroplating</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20field" title=" magnetic field"> magnetic field</a>, <a href="https://publications.waset.org/abstracts/search?q=chronopotentiometry" title=" chronopotentiometry"> chronopotentiometry</a> </p> <a href="https://publications.waset.org/abstracts/21468/electrodeposition-of-nickel-zinc-alloy-on-stainless-steel-in-a-magnetic-field-in-a-chloride-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21468.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">440</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1100</span> Effects of Sintering Temperature on Microstructure and Mechanical Properties of Nanostructured Ni-17Cr Alloy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=B.%20J.%20Babalola">B. J. Babalola</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20B.%20Shongwe"> M. B. Shongwe</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Spark Plasma Sintering technique is a novel processing method that produces limited grain growth and highly dense variety of materials; alloys, superalloys, and carbides just to mention a few. However, initial particle size and spark plasma sintering parameters are factors which influence the grain growth and mechanical properties of sintered materials. Ni-Cr alloys are regarded as the most promising alloys for aerospace turbine blades, owing to the fact that they meet the basic requirements of desirable mechanical strength at high temperatures and good resistance to oxidation. The conventional method of producing this alloy often results in excessive grain growth and porosity levels that are detrimental to its mechanical properties. The effect of sintering temperature was evaluated on the microstructure and mechanical properties of the nanostructured Ni-17Cr alloy. Nickel and chromium powder were milled using high energy ball milling independently for 30 hours, milling speed of 400 revs/min and ball to powder ratio (BPR) of 10:1. The milled powders were mixed in the composition of Nickel having 83 wt % and chromium, 17 wt %. This was sintered at varied temperatures from 800°C, 900°C, 1000°C, 1100°C and 1200°C. The structural characteristics such as porosity, grain size, fracture surface and hardness were analyzed by scan electron microscopy and X-ray diffraction, Archimedes densitometry, micro-hardness tester. The corresponding results indicated an increase in the densification and hardness property of the alloy as the temperature increases. The residual porosity of the alloy reduces with respect to the sintering temperature and in contrast, the grain size was enhanced. The study of the mechanical properties, including hardness, densification shows that optimum properties were obtained for the sintering temperature of 1100°C. The advantages of high sinterability of Ni-17Cr alloy using milled powders and microstructural details were discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=densification" title="densification">densification</a>, <a href="https://publications.waset.org/abstracts/search?q=grain%20growth" title=" grain growth"> grain growth</a>, <a href="https://publications.waset.org/abstracts/search?q=milling" title=" milling"> milling</a>, <a href="https://publications.waset.org/abstracts/search?q=nanostructured%20materials" title=" nanostructured materials"> nanostructured materials</a>, <a href="https://publications.waset.org/abstracts/search?q=sintering%20temperature" title=" sintering temperature "> sintering temperature </a> </p> <a href="https://publications.waset.org/abstracts/83005/effects-of-sintering-temperature-on-microstructure-and-mechanical-properties-of-nanostructured-ni-17cr-alloy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/83005.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">402</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1099</span> Hydrometallurgical Production of Nickel Ores from Field Bugetkol</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20T.%20Zhakiyenova">A. T. Zhakiyenova</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20E.%20Zhatkanbaev"> E. E. Zhatkanbaev</a>, <a href="https://publications.waset.org/abstracts/search?q=Zh.%20K.%20Zhatkanbaeva"> Zh. K. Zhatkanbaeva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nickel plays an important role in mechanical engineering and creation of military equipment; practically all steel are alloyed by nickel and other metals for receiving more durable, heat-resistant, corrosion-resistant steel and cast iron. There are many ways of processing of nickel in the world. Generally, it is igneous metallurgy methods. In this article, the review of majority existing ways of technologies of processing silicate nickel - cobalt ores is considered. Leaching of ores of a field Bugetkol is investigated by solution of sulfuric acid. We defined a specific consumption of sulfuric acid in relation to the mass of ore and to the mass of metal. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cobalt" title="cobalt">cobalt</a>, <a href="https://publications.waset.org/abstracts/search?q=degree%20of%20extraction" title=" degree of extraction"> degree of extraction</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrometallurgy" title=" hydrometallurgy"> hydrometallurgy</a>, <a href="https://publications.waset.org/abstracts/search?q=igneous%20metallurgy" title=" igneous metallurgy"> igneous metallurgy</a>, <a href="https://publications.waset.org/abstracts/search?q=leaching" title=" leaching"> leaching</a>, <a href="https://publications.waset.org/abstracts/search?q=matte" title=" matte"> matte</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel" title=" nickel"> nickel</a> </p> <a href="https://publications.waset.org/abstracts/43141/hydrometallurgical-production-of-nickel-ores-from-field-bugetkol" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/43141.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">385</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1098</span> Inﬂuence of Sodium Acetate on Electroless Ni-P Deposits and Effect of Heat Treatment on Corrosion Behavior </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Y.%20El%20Kaissi">Y. El Kaissi</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Allam"> M. Allam</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Koulou"> A. Koulou</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Galai"> M. Galai</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Ebn%20Touhami"> M. Ebn Touhami</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of our work is to develop an industrial bath of nickel alloy deposit on mild steel. The optimization of the operating parameters made it possible to obtain a stable Ni-P alloy deposition formulation. To understand the reaction mechanism of the deposition process, a kinetic study was performed by cyclic voltammetry and by electrochemical impedance spectroscopy (EIS). The coatings obtained have a very high corrosion resistance in a very aggressive acid medium which increases with the heat treatment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cyclic%20voltammetry" title="cyclic voltammetry">cyclic voltammetry</a>, <a href="https://publications.waset.org/abstracts/search?q=EIS" title=" EIS"> EIS</a>, <a href="https://publications.waset.org/abstracts/search?q=electroless%20Ni%E2%80%93P%20coating" title=" electroless Ni–P coating"> electroless Ni–P coating</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20treatment" title=" heat treatment"> heat treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=potentiodynamic%20polarization" title=" potentiodynamic polarization"> potentiodynamic polarization</a> </p> <a href="https://publications.waset.org/abstracts/63389/influence-of-sodium-acetate-on-electroless-ni-p-deposits-and-effect-of-heat-treatment-on-corrosion-behavior" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/63389.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">301</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1097</span> Facile Fabrication of Nickel/Zinc Oxide Hollow Spheres Nanostructure and Photodegradation of Congo Red</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Seyed%20Mohsen%20Mousavi">Seyed Mohsen Mousavi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Reza%20Mahjoub"> Ali Reza Mahjoub</a>, <a href="https://publications.waset.org/abstracts/search?q=Behjat%20Afshari"> Behjat Afshari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this work, Nickel/Zinc Oxide hollow spherical structures with high surface area using the template Fructose was prepared by the hydrothermal method using a ultrasonic bath at room temperature was produced and were identified by FTIR, XRD, FE-SEM. The photocatalytic activity of synthesized hollow spherical Nickel/Zinc Oxide was studied in the destruction of Congo red as Azo dye. The results showed that the photocatalytic activity of Nickel/ Zinc Oxide hollow spherical nanostructures is improved compared with zinc oxide hollow sphere and other morphologies. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=azo%20dye" title="azo dye">azo dye</a>, <a href="https://publications.waset.org/abstracts/search?q=hollow%20spheres" title=" hollow spheres"> hollow spheres</a>, <a href="https://publications.waset.org/abstracts/search?q=photocatalyst" title=" photocatalyst"> photocatalyst</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel%2Fzinc%20oxide" title=" nickel/zinc oxide"> nickel/zinc oxide</a> </p> <a href="https://publications.waset.org/abstracts/36139/facile-fabrication-of-nickelzinc-oxide-hollow-spheres-nanostructure-and-photodegradation-of-congo-red" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36139.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">637</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1096</span> Development of High Temperature Mo-Si-B Based In-situ Composites</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Erhan%20Ayas">Erhan Ayas</a>, <a href="https://publications.waset.org/abstracts/search?q=Buse%20Katipo%C4%9Flu"> Buse Katipoğlu</a>, <a href="https://publications.waset.org/abstracts/search?q=Eda%20Metin"> Eda Metin</a>, <a href="https://publications.waset.org/abstracts/search?q=Rifat%20Y%C4%B1lmaz"> Rifat Yılmaz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The search for new materials has begun to be used even higher than the service temperature (~1150ᵒC) where nickel-based superalloys are currently used. This search should also meet the increasing demands for energy efficiency improvements. The materials studied for aerospace applications are expected to have good oxidation resistance. Mo-Si-B alloys, which have higher operating temperatures than nickel-based superalloys, are candidates for ultra-high temperature materials used in gas turbine and jet engines. Because the Moss and Mo₅SiB₂ (T2) phases exhibit high melting temperature, excellent high-temperature creep strength and oxidation resistance properties, however, low fracture toughness value at room temperature is a disadvantage for these materials, but this feature can be improved with optimum Moss phase and microstructure control. High-density value is also a problem for structural parts. For example, in turbine rotors, the higher the weight, the higher the centrifugal force, which reduces the creep life of the material. The density value of the nickel-based superalloys and the T2 phase, which is the Mo-Si-B alloy phase, is in the range of 8.6 - 9.2 g/cm³. But under these conditions, T2 phase Moss (density value 10.2 g/cm³), this value is above the density value of nickel-based superalloys. So, with some ceramic-based contributions, this value is enhanced by optimum values. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=molybdenum" title="molybdenum">molybdenum</a>, <a href="https://publications.waset.org/abstracts/search?q=composites" title=" composites"> composites</a>, <a href="https://publications.waset.org/abstracts/search?q=in-situ" title=" in-situ"> in-situ</a>, <a href="https://publications.waset.org/abstracts/search?q=mmc" title=" mmc"> mmc</a> </p> <a href="https://publications.waset.org/abstracts/164861/development-of-high-temperature-mo-si-b-based-in-situ-composites" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/164861.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">66</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1095</span> Structural and Magnetic Properties of Milled Nickel Powder</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=O.%20M.%20Lemine">O. M. Lemine</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The effect of milling parameters on the structural and magnetic properties of nickel powder was investigated. The samples were characterized by X-ray powder diffraction and vibrating sample magnetometer (VSM). The results did not reveal any phase change of nickel during the milling. The average crystallite size decreases with a prolongation of milling times, whereas the lattice parameters increase. The hysteresis loop reveals the intrinsic magnetic behaviour. It was observed an increase in the magnetization which can be correlated to the volume expansion showed by XRD results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nickel%20powders" title="nickel powders">nickel powders</a>, <a href="https://publications.waset.org/abstracts/search?q=nanocrystallines" title=" nanocrystallines"> nanocrystallines</a>, <a href="https://publications.waset.org/abstracts/search?q=XRD" title=" XRD"> XRD</a>, <a href="https://publications.waset.org/abstracts/search?q=VSM" title=" VSM"> VSM</a> </p> <a href="https://publications.waset.org/abstracts/6125/structural-and-magnetic-properties-of-milled-nickel-powder" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/6125.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">333</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1094</span> The Gradient Complex Protective Coatings for Single Crystal Nickel Alloys</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Evgeniya%20Popova">Evgeniya Popova</a>, <a href="https://publications.waset.org/abstracts/search?q=Vladimir%20Lesnikov"> Vladimir Lesnikov</a>, <a href="https://publications.waset.org/abstracts/search?q=Nikolay%20Popov"> Nikolay Popov</a> </p> <p class="card-text"><strong>Abstract:</strong></p> High yield complex coatings have been designed for thermally stressed cooled HP turbine blades from single crystal alloys ZHS32-VI-VI and ZHS36 with crystallographic orientation [001]. These coatings provide long-term protection of single crystal blades during operation. The three-layer coatings were prepared as follows: the diffusion barrier layer formation on the alloy surface, the subsequent deposition of the condensed bilayer coatings consisting of an inner layer based on Ni-Cr-Al-Y systems and an outer layer based on the alloyed β-phase. The structure, phase composition of complex coatings and reaction zone interaction with the single-crystal alloys ZHS32-VI and ZHS36-VI were investigated using scanning electron microscope (SEM). The effect of complex protective coatings on the properties of heat-resistant nickel alloys was studied. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=single%20crystal%20nickel%20alloys" title="single crystal nickel alloys">single crystal nickel alloys</a>, <a href="https://publications.waset.org/abstracts/search?q=complex%20heat-resistant%20coatings" title=" complex heat-resistant coatings"> complex heat-resistant coatings</a>, <a href="https://publications.waset.org/abstracts/search?q=structure" title=" structure"> structure</a>, <a href="https://publications.waset.org/abstracts/search?q=phase%20composition" title=" phase composition"> phase composition</a>, <a href="https://publications.waset.org/abstracts/search?q=properties" title=" properties"> properties</a> </p> <a href="https://publications.waset.org/abstracts/63315/the-gradient-complex-protective-coatings-for-single-crystal-nickel-alloys" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/63315.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">418</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1093</span> Chelator-assisted Phytoextraction of Nickel from Nickeliferous Lateritic Soil by Phyllanthus sp. nov. </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Grecco%20M.%20Ante">Grecco M. Ante</a>, <a href="https://publications.waset.org/abstracts/search?q=Princess%20Rochelle%20O.%20Gan"> Princess Rochelle O. Gan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Plants that can absorb greater than 10,000 µg Ni/g dry mass in their stems and leaves are termed as ‘hypernickelophores’. Chelators are chemicals that make the metals in the soil more soluble, making them a potential enhancer for phytoextraction. This study aims to observe the effect of different concentrations of the chelating agent ethylene diamine tetraacetate (EDTA) on the metal uptake (or rate of phytoextraction) of Nickel by Phyllanthus sp. nov. The plant is found to be a hyperickelophore in normal conditions. The addition of EDTA increased the metal uptake of the plant. The increasing amount of the chelating agent causes a decrease in the phytoextraction of the plant but moves the onset of its peak of maximum nickel content in its tissue to an earlier time. The chelator-assisted phytoextraction of nickel by Phyllanthus sp. nov. is proven to be an efficient auxiliary mining operation for nickel laterite mines. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=phytomining" title="phytomining">phytomining</a>, <a href="https://publications.waset.org/abstracts/search?q=Phyllanthus%20sp.%20nov." title=" Phyllanthus sp. nov."> Phyllanthus sp. nov.</a>, <a href="https://publications.waset.org/abstracts/search?q=EDTA" title="EDTA">EDTA</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel" title=" nickel"> nickel</a>, <a href="https://publications.waset.org/abstracts/search?q=laterite" title=" laterite"> laterite</a> </p> <a href="https://publications.waset.org/abstracts/33853/chelator-assisted-phytoextraction-of-nickel-from-nickeliferous-lateritic-soil-by-phyllanthus-sp-nov" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33853.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">465</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1092</span> Effect of Chilling on Soundness, Micro Hardness, Ultimate Tensile Strength, and Corrosion Behavior of Nickel Alloy-Fused Silica Metal Matrix Composite</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=G.%20Purushotham">G. Purushotham</a>, <a href="https://publications.waset.org/abstracts/search?q=Joel%20Hemanth"> Joel Hemanth</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An investigation has been carried out to fabricate and evaluate the strength and soundness of chilled composites consisting of nickel matrix and fused silica particles (size 40–150 μm) in the matrix. The dispersoid added ranged from 3 to 12 wt. % in steps of 3%. The resulting composites cast in moulds containing metallic and non-metallic chill blocks (MS, SiC, and Cu) were tested for their microstructure and mechanical properties. The main objective of the present research is to obtain fine grain Ni/SiO2 chilled sound composite having very good mechanical properties. Results of the investigation reveal the following: (1) Strength of the composite developed is highly dependent on the location of the casting from where the test specimens are taken and also on the dispersoid content of the composite. (2) Chill thickness and chill material, however, does significantly affect the strength and soundness of the composite. (3) Soundness of the composite developed is highly dependent on the chilling rate as well as the dispersoid content. An introduction of chilling and increase in the dispersoid content of the material both result in an increase in the ultimate tensile strength (UTS) of the material. The temperature gradient developed during solidification and volumetric heat capacity (VHC) of the chill used is the important parameters controlling the soundness of the composite. (4) Thermal properties of the end chills are used to determine the magnitude of the temperature gradient developed along the length of the casting solidifying under the influence of chills. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=metal%20matrix%20composite" title="metal matrix composite">metal matrix composite</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20properties" title=" mechanical properties"> mechanical properties</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion%20behavior" title=" corrosion behavior"> corrosion behavior</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel%20alloy" title=" nickel alloy"> nickel alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=fused%20silica" title=" fused silica"> fused silica</a>, <a href="https://publications.waset.org/abstracts/search?q=chills" title=" chills"> chills</a> </p> <a href="https://publications.waset.org/abstracts/15591/effect-of-chilling-on-soundness-micro-hardness-ultimate-tensile-strength-and-corrosion-behavior-of-nickel-alloy-fused-silica-metal-matrix-composite" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15591.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">398</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1091</span> Tensile Properties of Aluminum Silicon Nickel Iron Vanadium High Entropy Alloys </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sefiu%20A.%20Bello">Sefiu A. Bello</a>, <a href="https://publications.waset.org/abstracts/search?q=Nasirudeen%20K.%20Raji"> Nasirudeen K. Raji</a>, <a href="https://publications.waset.org/abstracts/search?q=Jeleel%20A.%20Adebisi"> Jeleel A. Adebisi</a>, <a href="https://publications.waset.org/abstracts/search?q=Sadiq%20A.%20Raji"> Sadiq A. Raji</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Pure metals are not used in most cases for structural applications because of their limited properties. Presently, high entropy alloys (HEAs) are emerging by mixing comparative proportions of metals with the aim of maximizing the entropy leading to enhancement in structural and mechanical properties. Aluminum Silicon Nickel Iron Vanadium (AlSiNiFeV) alloy was developed using stir cast technique and analysed. Results obtained show that the alloy grade G0 contains 44 percentage by weight (wt%) Al, 32 wt% Si, 9 wt% Ni, 4 wt% Fe, 3 wt% V and 8 wt% for minor elements with tensile strength and elongation of 106 Nmm<sup>-2</sup> and 2.68%, respectively. X-ray diffraction confirmed intermetallic compounds having hexagonal closed packed (HCP), orthorhombic and cubic structures in cubic dendritic matrix. This affirmed transformation from the cubic structures of elemental constituents of the HEAs to the precipitated structures of the intermetallic compounds. A maximum tensile strength of 188 Nmm<sup>-2</sup> with 4% elongation was noticed at 10wt% of silica addition to the G0. An increase in tensile strength with an increment in silica content could be attributed to different phases and crystal geometries characterizing each HEA. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=HEAs" title="HEAs">HEAs</a>, <a href="https://publications.waset.org/abstracts/search?q=phases%20model" title=" phases model"> phases model</a>, <a href="https://publications.waset.org/abstracts/search?q=aluminium" title=" aluminium"> aluminium</a>, <a href="https://publications.waset.org/abstracts/search?q=silicon" title=" silicon"> silicon</a>, <a href="https://publications.waset.org/abstracts/search?q=tensile%20strength" title=" tensile strength"> tensile strength</a>, <a href="https://publications.waset.org/abstracts/search?q=model" title=" model"> model</a> </p> <a href="https://publications.waset.org/abstracts/112732/tensile-properties-of-aluminum-silicon-nickel-iron-vanadium-high-entropy-alloys" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/112732.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">122</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1090</span> Constraining the Potential Nickel Laterite Area Using Geographic Information System-Based Multi-Criteria Rating in Surigao Del Sur</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Reiner-Ace%20P.%20Mateo">Reiner-Ace P. Mateo</a>, <a href="https://publications.waset.org/abstracts/search?q=Vince%20Paolo%20F.%20Obille"> Vince Paolo F. Obille</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The traditional method of classifying the potential mineral resources requires a significant amount of time and money. In this paper, an alternative way to classify potential mineral resources with GIS application in Surigao del Sur. The three (3) analog map data inputs integrated to GIS are geologic map, topographic map, and land cover/vegetation map. The indicators used in the classification of potential nickel laterite integrated from the analog map data inputs are a geologic indicator, which is the presence of ultramafic rock from the geologic map; slope indicator and the presence of plateau edges from the topographic map; areas of forest land, grassland, and shrublands from the land cover/vegetation map. The potential mineral of the area was classified from low up to very high potential. The produced mineral potential classification map of Surigao del Sur has an estimated 4.63% low nickel laterite potential, 42.15% medium nickel laterite potential, 43.34% high nickel laterite potential, and 9.88% very high nickel laterite from its ultramafic terrains. For the validation of the produced map, it was compared with known occurrences of nickel laterite in the area using a nickel mining tenement map from the area with the application of remote sensing. Three (3) prominent nickel mining companies were delineated in the study area. The generated potential classification map of nickel-laterite in Surigao Del Sur may be of aid to the mining companies which are currently in the exploration phase in the study area. Also, the currently operating nickel mines in the study area can help to validate the reliability of the mineral classification map produced. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mineral%20potential%20classification" title="mineral potential classification">mineral potential classification</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel%20laterites" title=" nickel laterites"> nickel laterites</a>, <a href="https://publications.waset.org/abstracts/search?q=GIS" title=" GIS"> GIS</a>, <a href="https://publications.waset.org/abstracts/search?q=remote%20sensing" title=" remote sensing"> remote sensing</a>, <a href="https://publications.waset.org/abstracts/search?q=Surigao%20del%20Sur" title=" Surigao del Sur"> Surigao del Sur</a> </p> <a href="https://publications.waset.org/abstracts/147543/constraining-the-potential-nickel-laterite-area-using-geographic-information-system-based-multi-criteria-rating-in-surigao-del-sur" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/147543.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">123</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1089</span> Rapid Processing Techniques Applied to Sintered Nickel Battery Technologies for Utility Scale Applications </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=J.%20D.%20Marinaccio">J. D. Marinaccio</a>, <a href="https://publications.waset.org/abstracts/search?q=I.%20Mabbett"> I. Mabbett</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Glover"> C. Glover</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Worsley"> D. Worsley </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Through use of novel modern/rapid processing techniques such as screen printing and Near-Infrared (NIR) radiative curing, process time for the sintering of sintered nickel plaques, applicable to alkaline nickel battery chemistries, has been drastically reduced from in excess of 200 minutes with conventional convection methods to below 2 minutes using NIR curing methods. Steps have also been taken to remove the need for forming gas as a reducing agent by implementing carbon as an in-situ reducing agent, within the ink formulation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=batteries" title="batteries">batteries</a>, <a href="https://publications.waset.org/abstracts/search?q=energy" title=" energy"> energy</a>, <a href="https://publications.waset.org/abstracts/search?q=iron" title=" iron"> iron</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel" title=" nickel"> nickel</a>, <a href="https://publications.waset.org/abstracts/search?q=storage" title=" storage "> storage </a> </p> <a href="https://publications.waset.org/abstracts/28418/rapid-processing-techniques-applied-to-sintered-nickel-battery-technologies-for-utility-scale-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28418.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">439</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1088</span> Investigation of the Effect of Nickel Electrodes as a Stainless Steel Buffer Layer on the Shielded Metal Arc Welding</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Meisam%20Akbari">Meisam Akbari</a>, <a href="https://publications.waset.org/abstracts/search?q=Seyed%20Hossein%20Elahi"> Seyed Hossein Elahi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Mashadgarmeh"> Mohammad Mashadgarmeh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, the effect of nickel-electrode as a stainless steel buffer layer is considered. Then, the effect of dilution of the last layer of welding on two samples of steel plate A516 Gr70 (C-Mn-Si) with SMAW welding process was investigated. Then, in a sample, the ENI-cl nickel electrode was welded as the buffer layer and the E316L-16 electrode as the last layer of welding and another sample with an E316L-16 electrode in two layers. The chemical composition of the latter layer was determined by spectrophotometry method. The results indicate that the chemical composition of the latter layer is different and the lowest dilution rate is obtained using the nickel electrode. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=degree%20of%20dilution" title="degree of dilution">degree of dilution</a>, <a href="https://publications.waset.org/abstracts/search?q=C-Mn-Si" title=" C-Mn-Si"> C-Mn-Si</a>, <a href="https://publications.waset.org/abstracts/search?q=spectrometry" title=" spectrometry"> spectrometry</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel%20electrode" title=" nickel electrode"> nickel electrode</a>, <a href="https://publications.waset.org/abstracts/search?q=stainless%20steel" title=" stainless steel"> stainless steel</a> </p> <a href="https://publications.waset.org/abstracts/106351/investigation-of-the-effect-of-nickel-electrodes-as-a-stainless-steel-buffer-layer-on-the-shielded-metal-arc-welding" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/106351.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">220</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1087</span> Selective Solvent Extraction of Calcium and Magnesium from Concentrate Nickel Solutions Using Mixtures of Cyanex 272 and D2EHPA</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20S.%20Guimar%C3%A3es">Alexandre S. Guimarães</a>, <a href="https://publications.waset.org/abstracts/search?q=Marcelo%20B.%20Mansur"> Marcelo B. Mansur</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The performance of organophosphorus extractants Cyanex 272 and D2EHPA on the purification of concentrate nickel sulfate solutions was evaluated. Batch scale tests were carried out at pH range of 2 to 7 using a laboratory solution simulating concentrate nickel liquors as those typically obtained when sulfate intermediates from nickel laterite are re-leached and treated for the selective removal of cobalt, zinc, manganese and copper with Cyanex 272 ([Ca] = 0.57 g/L, [Mg] = 3.2 g/L, and [Ni] = 88 g/L). The increase on the concentration of D2EHPA favored the calcium extraction. The extraction of magnesium is dependent on the pH and of ratio of extractants D2EHPA and Cyanex 272 in the organic phase. The composition of the investigated organic phase did not affect nickel extraction. The number of stages is dependent on the magnesium extraction. The most favorable operating condition to selectively remove calcium and magnesium was determined. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solvent%20extraction" title="solvent extraction">solvent extraction</a>, <a href="https://publications.waset.org/abstracts/search?q=organophosphorus%20extractants" title=" organophosphorus extractants"> organophosphorus extractants</a>, <a href="https://publications.waset.org/abstracts/search?q=alkaline%20earth%20metals" title=" alkaline earth metals"> alkaline earth metals</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel" title=" nickel"> nickel</a> </p> <a href="https://publications.waset.org/abstracts/41602/selective-solvent-extraction-of-calcium-and-magnesium-from-concentrate-nickel-solutions-using-mixtures-of-cyanex-272-and-d2ehpa" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41602.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">524</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1086</span> Calculation of Electronic Structures of Nickel in Interaction with Hydrogen by Density Functional Theoretical (DFT) Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Choukri%20Lekbir">Choukri Lekbir</a>, <a href="https://publications.waset.org/abstracts/search?q=Mira%20Mokhtari"> Mira Mokhtari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Hydrogen-Materials interaction and mechanisms can be modeled at nano scale by quantum methods. In this work, the effect of hydrogen on the electronic properties of a cluster material model «nickel» has been studied by using of density functional theoretical (DFT) method. Two types of clusters are optimized: Nickel and hydrogen-nickel system. In the case of nickel clusters (n = 1-6) without presence of hydrogen, three types of electronic structures (neutral, cationic and anionic), have been optimized according to three basis sets calculations (B3LYP/LANL2DZ, PW91PW91/DGDZVP2, PBE/DGDZVP2). The comparison of binding energies and bond lengths of the three structures of nickel clusters (neutral, cationic and anionic) obtained by those basis sets, shows that the results of neutral and anionic nickel clusters are in good agreement with the experimental results. In the case of neutral and anionic nickel clusters, comparing energies and bond lengths obtained by the three bases, shows that the basis set PBE/DGDZVP2 is most suitable to experimental results. In the case of anionic nickel clusters (n = 1-6) with presence of hydrogen, the optimization of the hydrogen-nickel (anionic) structures by using of the basis set PBE/DGDZVP2, shows that the binding energies and bond lengths increase compared to those obtained in the case of anionic nickel clusters without the presence of hydrogen, that reveals the armor effect exerted by hydrogen on the electronic structure of nickel, which due to the storing of hydrogen energy within nickel clusters structures. The comparison between the bond lengths for both clusters shows the expansion effect of clusters geometry which due to hydrogen presence. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=binding%20energies" title="binding energies">binding energies</a>, <a href="https://publications.waset.org/abstracts/search?q=bond%20lengths" title=" bond lengths"> bond lengths</a>, <a href="https://publications.waset.org/abstracts/search?q=density%20functional%20theoretical" title=" density functional theoretical"> density functional theoretical</a>, <a href="https://publications.waset.org/abstracts/search?q=geometry%20optimization" title=" geometry optimization"> geometry optimization</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrogen%20energy" title=" hydrogen energy"> hydrogen energy</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel%20cluster" title=" nickel cluster"> nickel cluster</a> </p> <a href="https://publications.waset.org/abstracts/23247/calculation-of-electronic-structures-of-nickel-in-interaction-with-hydrogen-by-density-functional-theoretical-dft-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23247.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">422</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1085</span> Effect of Aging Treatment on Tensile Properties of AZ91D Mg Alloy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ju%20Hyun%20Won">Ju Hyun Won</a>, <a href="https://publications.waset.org/abstracts/search?q=Seok%20Hong%20Min"> Seok Hong Min</a>, <a href="https://publications.waset.org/abstracts/search?q=Tae%20Kwon%20Ha"> Tae Kwon Ha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Phase equilibria of AZ91D Mg alloys for nonflammable use, containing Ca and Y, were carried out by using FactSage® and FTLite database, which revealed that solid solution treatment, could be performed at temperatures from 400 to 450 °C. Solid solution treatment of AZ91D Mg alloy without Ca and Y was successfully conducted at 420 °C and supersaturated microstructure with all beta phase resolved into matrix was obtained. In the case of AZ91D Mg alloy with some Ca and Y, however, a little amount of intermetallic particles were observed after solid solution treatment. After solid solution treatment, each alloy was annealed at temperatures of 180 and 200 °C for time intervals from 1 min to 48 hrs and hardness of each condition was measured by micro-Vickers method. Peak aging conditions were deduced as at the temperature of 200 °C for 10 hrs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mg%20alloy" title="Mg alloy">Mg alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=AZ91D" title=" AZ91D"> AZ91D</a>, <a href="https://publications.waset.org/abstracts/search?q=nonflammable%20alloy" title=" nonflammable alloy"> nonflammable alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=phase%20equilibrium" title=" phase equilibrium"> phase equilibrium</a>, <a href="https://publications.waset.org/abstracts/search?q=peak%20aging" title=" peak aging"> peak aging</a> </p> <a href="https://publications.waset.org/abstracts/34978/effect-of-aging-treatment-on-tensile-properties-of-az91d-mg-alloy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/34978.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">430</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1084</span> The Effect of Electromagnetic Stirring during Solidification of Nickel Based Alloys</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ricardo%20Paiva">Ricardo Paiva</a>, <a href="https://publications.waset.org/abstracts/search?q=Rui%20Soares"> Rui Soares</a>, <a href="https://publications.waset.org/abstracts/search?q=Felix%20Harnau"> Felix Harnau</a>, <a href="https://publications.waset.org/abstracts/search?q=Bruno%20Fragoso"> Bruno Fragoso</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nickel-based alloys are materials well suited for service in extreme environments subjected to pressure and heat. Some industrial applications for Nickel-based alloys are aerospace and jet engines, oil and gas extraction, pollution control and waste processing, automotive and marine industry. It is generally recognized that grain refinement is an effective methodology to improve the quality of casted parts. Conventional grain refinement techniques involve the addition of inoculation substances, the control of solidification conditions, or thermomechanical treatment with recrystallization. However, such methods often lead to non-uniform grain size distribution and the formation of hard phases, which are detrimental to both wear performance and biocompatibility. Stirring of the melt by electromagnetic fields has been widely used in continuous castings with success for grain refinement, solute redistribution, and surface quality improvement. Despite the advantages, much attention has not been paid yet to the use of this approach on functional castings such as investment casting. Furthermore, the effect of electromagnetic stirring (EMS) fields on Nickel-based alloys is not known. In line with the gaps/needs of the state-of-art, the present research work targets to promote new advances in controlling grain size and morphology of investment cast Nickel based alloys. For such a purpose, a set of experimental tests was conducted. A high-frequency induction furnace with vacuum and controlled atmosphere was used to cast the Inconel 718 alloy in ceramic shells. A coil surrounded the casting chamber in order to induce electromagnetic stirring during solidification. Aiming to assess the effect of the electromagnetic stirring on Ni alloys, the samples were subjected to microstructural analysis and mechanical tests. The results show that electromagnetic stirring can be an effective methodology to modify the grain size and mechanical properties of investment-cast parts. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=investment%20casting" title="investment casting">investment casting</a>, <a href="https://publications.waset.org/abstracts/search?q=grain%20refinement" title=" grain refinement"> grain refinement</a>, <a href="https://publications.waset.org/abstracts/search?q=electromagnetic%20stirring" title=" electromagnetic stirring"> electromagnetic stirring</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel%20alloys" title=" nickel alloys"> nickel alloys</a> </p> <a href="https://publications.waset.org/abstracts/128372/the-effect-of-electromagnetic-stirring-during-solidification-of-nickel-based-alloys" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/128372.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">133</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1083</span> The Effects of pH on the Electrochromism in Nickel Oxide Films</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=T.%20Ta%C5%9Fk%C3%B6pr%C3%BC">T. Taşköprü</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Zor"> M. Zor</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Turan"> E. Turan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The advantages of nickel oxide as an electrochromic material are its good contrast of transmittance and its suitable use as a secondary electrochromic film with WO3 for electrochromic devices. Electrochromic nickel oxide film was prepared by using a simple and inexpensive chemical deposition bath (CBD) technique onto fluorine-doped tin oxide (FTO) coated glass substrates from nickel nitrate solution. The films were ace centered cubic NiO with preferred orientation in the (2 0 0) direction. The electrochromic (EC) properties of the films were studied as a function of pH (8, 9, 10 and 11) in an aqueous alkaline electrolyte (0.3 M KOH) using cyclic voltammetry (CV). The EC cell was formed with the following configuration; FTO/nickel oxide film/0.3 M KOH/Pt The potential was cycled from 0.1 to 0.6V at diffferent potential sweep rates in the range 10- 50 mV/s. The films exhibit anodic electrochromism, changing colour from transparent to black.CV results of a nickel oxide film showed well-resolved anodic current peak at potential; 45 mV and cathodic peak at potential 28 mV. The structural, morphological, and optical changes in NiO film following the CV were investigated by means of X-ray diffractometer (XRD), field emission electron microscopy (FESEM) and UV-Vis- NIR spectrophotometry. No change was observed in XRD, besides surface morphology undergoes change due to the electrical discharge. The change in tansmittance between the bleached and colored state is 68% for the film deposited with pH=11 precursor. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nickel%20oxide" title="nickel oxide">nickel oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=XRD" title=" XRD"> XRD</a>, <a href="https://publications.waset.org/abstracts/search?q=SEM" title=" SEM"> SEM</a>, <a href="https://publications.waset.org/abstracts/search?q=cyclic%20voltammetry" title=" cyclic voltammetry"> cyclic voltammetry</a> </p> <a href="https://publications.waset.org/abstracts/39351/the-effects-of-ph-on-the-electrochromism-in-nickel-oxide-films" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/39351.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">306</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1082</span> Effect of Aging Condition on Semisolid Cast 2024 Aluminum Alloy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20Wisutmethangoon">S. Wisutmethangoon</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Pannaray"> S. Pannaray</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Plookphol"> T. Plookphol</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Wannasin"> J. Wannasin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> 2024 Aluminium alloy was squeezed cast by the Gas Induced Semi Solid (GISS) process. Effect of artificial aging on microstructure and mechanical properties of this alloy was studied in the present work. The solutionized specimens were aged hardened at temperatures of 175°C, 200°C, and 225°C under various time durations. The highest hardness of about 77.7 HRE was attained from specimen aged at the temperature of 175 °C for 36 h. Upon investigation the microstructure by using Transmission Electron Microscopy (TEM), the phase was mainly attributed to the strengthening effect in the aged alloy. The apparent activation energy for precipitation hardening of the alloy was calculated as 133,805 J/mol. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=2024%20aluminium%20alloy" title="2024 aluminium alloy">2024 aluminium alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=gas%20induced%20semi%20solid" title=" gas induced semi solid"> gas induced semi solid</a>, <a href="https://publications.waset.org/abstracts/search?q=T6%20heat%20treatment" title=" T6 heat treatment"> T6 heat treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=aged%20hardening" title=" aged hardening"> aged hardening</a>, <a href="https://publications.waset.org/abstracts/search?q=transmission%20electron%20microscopy" title=" transmission electron microscopy"> transmission electron microscopy</a> </p> <a href="https://publications.waset.org/abstracts/4350/effect-of-aging-condition-on-semisolid-cast-2024-aluminum-alloy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4350.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">312</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1081</span> Continuous Synthesis of Nickel Nanoparticles by Hydrazine Reduction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yong-Su%20Jo">Yong-Su Jo</a>, <a href="https://publications.waset.org/abstracts/search?q=Seung-Min%20Yang"> Seung-Min Yang</a>, <a href="https://publications.waset.org/abstracts/search?q=Seok%20Hong%20Min"> Seok Hong Min</a>, <a href="https://publications.waset.org/abstracts/search?q=Tae%20Kwon%20Ha"> Tae Kwon Ha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The synthesis of nickel nanoparticles by the reduction of nickel chloride with hydrazine in an aqueous solution. The effect of hydrazine concentration on batch-processed particle characteristics was investigated using Field Emission Scanning Electron Microscopy (FESEM). Both average particle size and geometric standard deviation (GSD) were decreasing with increasing hydrazine concentration. The continuous synthesis of nickel nanoparticles by microemulsion method was also studied using FESEM and X-ray Diffraction (XRD). The average size and geometric standard deviation of continuous-processed particles were 87.4 nm and 1.16, respectively. X-ray diffraction revealed continuous-processed particles were pure nickel crystalline with a face-centered cubic (fcc) structure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nanoparticle" title="nanoparticle">nanoparticle</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrazine%20reduction" title=" hydrazine reduction"> hydrazine reduction</a>, <a href="https://publications.waset.org/abstracts/search?q=continuous%20process" title=" continuous process"> continuous process</a>, <a href="https://publications.waset.org/abstracts/search?q=microemulsion%20method" title=" microemulsion method"> microemulsion method</a> </p> <a href="https://publications.waset.org/abstracts/77806/continuous-synthesis-of-nickel-nanoparticles-by-hydrazine-reduction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/77806.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">458</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1080</span> Microscopic and Mesoscopic Deformation Behaviors of Mg-2Gd Alloy with or without Li Addition</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jing%20Li">Jing Li</a>, <a href="https://publications.waset.org/abstracts/search?q=Li%20Jin"> Li Jin</a>, <a href="https://publications.waset.org/abstracts/search?q=Fulin%20Wang"> Fulin Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Jie%20Dong"> Jie Dong</a>, <a href="https://publications.waset.org/abstracts/search?q=Wenjiang%20Ding"> Wenjiang Ding</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Mg-Li dual-phase alloy exhibits better combination of yield strength and elongation than the Mg single-phase alloy. To exploit its deformation behavior, the deformation mechanisms of Mg-2Gd alloy with or without Li addition, i.e., Mg-6Li-2Gd and Mg-2Gd alloy, have been studied at both microscale and mesoscale. EBSD-assisted slip trace, twin trace, and texture evolution analysis show that the α-Mg phase of Mg-6Li-2Gd alloy exhibits different microscopic deformation mechanisms with the Mg-2Gd alloy, i.e., mainly prismatic <a> slip in the former one, while basal slip, prismatic <a> slip and extension twin in the latter one. Further Schmid factor analysis results attribute this different intra-phase deformation mechanisms to the higher critical resolved shear stress (CRSS) value of extension twin and lower ratio of CRSSprismatic /CRSSbasal in the α-Mg phase of Mg-6Li-2Gd alloy. Additionally, Li addition can induce dual-phase microstructure in the Mg-6Li-2Gd alloy, leading to the formation of hetero-deformation induced (HDI) stress at the mesoscale. This can be evidenced by the hysteresis loops appearing during the loading-unloading-reloading (LUR) tensile tests and the activation of multiple slip activity in the α-Mg phase neighboring β-Li phase. The Mg-6Li-2Gd alloy shows higher yield strength is due to the harder α-Mg phase arising from solid solution hardening of Li addition, as well asthe strengthening of soft β-Li phase by the HDI stress during yield stage. Since the strain hardening rate of Mg-6Li-2Gd alloy is lower than that of Mg-2Gd alloy after ~2% strain, which is partly due to the weak contribution of HDI stress, Mg-6Li-2Gd alloy shows no obvious increase of uniform elongation than the Mg-2Gd alloy.But since the β-Li phase is effective in blunting the crack tips, the Mg-6Li-2Gd alloy shows ununiform elongation, which, thus, leads to the higher total elongation than the Mg-2Gd alloy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mg-Li-Gd%20dual-phase%20alloy" title="Mg-Li-Gd dual-phase alloy">Mg-Li-Gd dual-phase alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=phase%20boundary" title=" phase boundary"> phase boundary</a>, <a href="https://publications.waset.org/abstracts/search?q=HDI%20stress" title=" HDI stress"> HDI stress</a>, <a href="https://publications.waset.org/abstracts/search?q=dislocation%20slip%20activity" title=" dislocation slip activity"> dislocation slip activity</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20properties" title=" mechanical properties"> mechanical properties</a> </p> <a href="https://publications.waset.org/abstracts/145933/microscopic-and-mesoscopic-deformation-behaviors-of-mg-2gd-alloy-with-or-without-li-addition" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/145933.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">204</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=nickel%20alloy&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=nickel%20alloy&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=nickel%20alloy&page=4">4</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=nickel%20alloy&page=5">5</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=nickel%20alloy&page=6">6</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=nickel%20alloy&page=7">7</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=nickel%20alloy&page=8">8</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=nickel%20alloy&page=9">9</a></li> <li class="page-item"><a class="page-link" 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