Comparative analysis based on adiabatic shear instability for scuffing failure between unidirectional and reciprocating sliding motion

摘要: Abstract The principal goal of the experiments described here is to study sliding motion effects on scuffing life basis adiabatic shear plastic instability. Experimentally we observed that load capacity surface decreased and micro-scuffing initiated frequently under reciprocating as compared unidirectional motion. According instability model, initiation occurs when rate thermal softening exceeds work hardening due deformation. In order ascertain in surfaces, contact temperatures were calculated. We found higher friction coefficient caused temperature than Therefore, could exceed easily owing frictional heating. speculated roughen surfaces rapidly confirmed our assumption demonstrated above, was consistent with experimental observation. conclusion, there a synergy effect relation failure because heating, roughening, function together enhance each other, consequently, decrease sliding.