TY - JFULL AU - Rajendra M. Galagali and R. G. Tikotkar PY - 2017/6/ TI - Tribological Behaviour of Si-Cu-Mo-Ni Alloyed Austempered Ductile Iron T2 - International Journal of Materials and Metallurgical Engineering SP - 421 EP - 425 VL - 11 SN - 1307-6892 UR - https://publications.waset.org/pdf/10007713 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 125, 2017 N2 - Ductile iron samples alloyed with 2.5% Si, 0.78% Cu, 0.421% Mo and 0.151% Ni were austempered at 345 °C and 380 °C for 150 and 180 mins and then tested for wear strength. Ductile iron was also included in the study for comparison purposes. A pin-on-disc machine was employed for wear study. The investigations were carried out for a speed of 3 m/s, under the contact load of 29.43 N with varying sliding distances ranging from 1000 m to 5000 m. The experimental outcome indicates that ADI austempered at 345 °C is more wear resistant than the one austempered at 380 °C. Also for only a sliding distance of 3000 m, both exhibited almost same wear resistance. SEM analysis indicates running sliding marks more or less parallel to one another. Spalled layers and large voids which resemble delamination were observed on worn surface of ADI380. This indicated the occurrence of severe wear. Dark patches observed indicate oxidized surface. ER -