{"title":"The Interaction between Hydrogen and Surface Stress in Stainless Steel","authors":"O. Takakuwa, Y. Mano, H. Soyama","volume":96,"journal":"International Journal of Materials and Metallurgical Engineering","pagesStart":1391,"pagesEnd":1396,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/10000014","abstract":"<p>This paper reveals the interaction between hydrogen<br \/>\r\nand surface stress in austenitic stainless steel by X-ray diffraction<br \/>\r\nstress measurement and thermal desorption analysis before and after<br \/>\r\nbeing charged with hydrogen. The surface residual stress was varied<br \/>\r\nby surface finishing using several disc polishing agents. The obtained<br \/>\r\nresults show that the residual stress near surface had a significant<br \/>\r\neffect on hydrogen absorption behavior, that is, tensile residual stress<br \/>\r\npromoted the hydrogen absorption and compressive one did opposite.<br \/>\r\nAlso, hydrogen induced equi-biaxial stress and this stress has a linear<br \/>\r\ncorrelation with hydrogen content.<\/p>\r\n","references":"[1] Y. Murakami, T. Kanezaki, Y. Mine and S. Matsuoka, \u201cHydrogen\r\nEmbrittlement Mechanism in Fatigue of Austenitic Stainless Steels,\u201d\r\nMetall. Mater. Trans. A, vol. 39, no. 6, pp. 1327\u20131339, 2008.\r\n[2] W.H. Johnson, \u201cOn some remarkable changes produced in iron and steel\r\nby the action of hydrogen and acids,\u201d Proc. Royal Society of London, vol.\r\n23, pp. 168\u2013179, 1874.\r\n[3] A.T. Yokobori, Jr., T. Nemoto, K. Satoh and T. Yamada, \u201cNumerical\r\nanalysis on hydrogen diffusion and concentration in solid with emission\r\naround the crack tip,\u201d Eng. Fract. Mech., vol. 55, no. 1, pp. 47\u201360, 2002.\r\n[4] O. Takakuwa and H. Soyama, \u201cSuppression of hydrogen-assisted fatigue\r\ncrack growth in austenitic stainless steel by cavitation peening,\u201d Int. J.\r\nHydrogen Energy, vol. 37, no. 6, pp. 5268\u20135276, 2012.\r\n[5] O. Takakuwa, M. Nishikawa and H. Soyama, \u201cNumerical simulation of\r\nthe effects of residual stress on the concentration of hydrogen around a\r\ncrack tip,\u201d Surf. Coat. Technol., vol. 206, no. 11\u201312, pp. 2892\u20132898,\r\n2012.\r\n[6] A. Barnoush and H. Vehoff, \u201cRecent developments in the study of\r\nhydrogen embrittlement: Hydrogen effect on dislocation nucleation,\u201d\r\nActa Mater., vol. 58, no. 16, pp. 5274\u20135285, 2010.\r\n[7] O. Takakuwa and H. Soyama, \u201cUsing an indentation test to evaluate the\r\neffect of cavitation peening on the invasion of the surface of austenitic\r\nstainless steel by hydrogen,\u201d Surf. Coat. Technol., vol. 206, no. 18, pp.\r\n3747\u20133750, 2012.\r\n[8] O. Takakuwa, Y. Mano and H. Soyama, \u201cEffect of indentation load on\r\nVickers hardness of austenitic stainless steel after hydrogen charging,\u201d\r\nProc. ASME Pressure Vessel & Piping Conf., pp. 28280\u20131\u20136, 2014.\r\n[9] O. Takakuwa, Y. Mano and H. Soyama, \u201cIncrease in the local yield stress\r\nnear surface of austenitic stainless steel due to invasion by hydrogen,\u201d Int.\r\nJ. Hydrogen Energy, vol. 39, no. 11, pp. 6095\u20136103, 2014.\r\n[10] O. Takakuwa, Y. Mano and H. Soyama, \u201c(24) Effect of hydrogen on\r\nthe micro- and macro-strain near the surface of austenitic stainless steel,\u201d\r\nAdv. Mater. Research, vol. 936, pp. 1298\u20131302, 2014.\r\n[11] O. Takakuwa and H. Soyama, \u201cOptimizing the conditions for residual\r\nstress measurement using a two-dimensional XRD method with specimen\r\noscillation,\u201d Adv. Mater. Phys. Chem., vol. 3, no. 1A, pp. 8\u201318, 2013.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 96, 2014"}