A dual layer PVD coating consisting of a CrN on top CoCrMo(C) S-phase underlayer (CrN/S) was deposited low-carbon wrought CoCrMo alloy discs and Stellite® 21 spheres. The tribocorrosion response the uncoated tribopairs coated CrN/S studied under reciprocating sliding conditions in Ringer's diluted foetal bovine serum (FBS) solutions anodic potential elastic contact for time 2 h. Compared to tri...

The effect of dispersed particles lamellar molybdenum, tungsten and vanadium oxides on the lubrication properties mineral oil was investigated. It is shown that in presence hexagonal molybdenum oxide coefficient friction falls two-fold (from 0.08 to 0.04) exhibiting further decrease under high mechanical load, i. e. behaves as an adaptive lubricant. intercalation benzotriazole into ensures addi...

Water-based lubrication faces the common challenge of component lifetime extension which is impaired by tribocorrosion due to material surface depassivation. However, such mechanisms in a pH-neutral and low-halide electrolyte require additional understanding. A ball-on-flat configuration study hard-phase materials low amplitude–high frequency sliding contact against martensitic chromium steel w...

Understanding the fundamental behaviors of tribocorrosion for metals is critical their possible application in seawater. For recently emerging medium entropy alloys (MEAs), while mechanical wear and corrosion phenomena have been established, such experimental exploration still lacking regarding behavior. In this work, behavior CoCrNi MEA was investigated on a reciprocating sliding friction test...