Corrosion-wear evaluation of a UHMWPE/Co–Cr couple in sliding contact under relatively low contact stress in physiological saline solution

Several tribocorrosion studies have been carried out using metal on metal (MOM) and ceramic on metal (COM) materials combinations in order to understand the behavior of these materials when applied in human joint replacement. However, there are few studies in this area focused on processes of tribocorrosion occurring at the interface between a metal and a polymer. Thus, the aim of this study was to evaluate the tribocorrosion behavior between cobalt chromium and ultra-high molecular weight polyethylene (UHMWPE) under relatively low contact stress.