The corrosion studies of powder metallurgy Co-Cr-Mo (F-75) alloy

Abstract

Co-Cr-Mo (F-75) alloy was investigated for biomedical application due to its mechanical properties and good corrosion resistance. This study has been focusing on the corrosion behavior of PM Co-Cr-Mo alloy. The Co-Cr-Mo powder were first blended with binder using rotation mill and compacted using uniaxial cold press to a pellet shape and then sintered at two sintering temperatures (1300°C and 1350°C) with 90 minutes of sintering time. Immersion test was carried out in a water bath with maintaining the temperature at 37°C for 90 days. The results show that sample sintered at 1350°C has the lowest mpy result after 90 days immersed in 0.9% sodium chloride.