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Understanding the microstructural and tribo-chemical processes during tribological loading is of utmost importance to further improve the tribological behavior of metals. In this study, the friction, wear and tribo-chemical behavior of Ni with different initial microstructures (nanocrystalline, bi-modal, coarse-grained) is investigated under dry sliding conditions. In particular, the interplay be-tween...
This work evaluates the effect of a destabilization treatment combined with a subcritical diffusion (SCD) and a subsequent quenching (Q) steps on precipitation of secondary carbides and their influence on the wear properties of HCCI (16%Cr). The destabilization of the austenite at high temperature leads to a final microstructure composed of eutectic and secondary carbides, with an M7C3 nature, embedded...
The tribological performance of machine elements is mainly influenced by the contact conditions, the material pairing and the dominating lubrication regime.The aim of this study is to introduce a precise solid–solid contact ratio which is based on a refined electrical resistivity circuit referring to Furey’s concept from the early 1960s. This ratio can be directly derived from voltage–time-curves...
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