Effects of cold deformation on the low speed sliding wear of the RS/PM Al-10 wt.% Ti alloy against carbon steel

The effects of cold deformation on the dry sliding wear of RS/PM Al-10 wt.% Ti alloy have been studied at a low sliding speed of 0.66 m/s. It is indic ated that the wear mechanism of the RS/PM Al-10 wt.% Ti alloy changes from adhesion to oxidation wear with the increasing applied load. At adhesive we ar stage, wear resistance of the alloy decreases with the increase of the r esidual strain after cold deformation. The relationship of the wear constan t of the alloy before and after cold deformation (k(0) and k, respectively) can be expressed as k = k(0)/(1 - Ck(0))where, C = gamma(2)/gamma(0); At t he oxidation wear stage, a certain degree of cold deformation can improve t he wear resistance of the alloy because of work hardening. (C) 1999 Elsevie r Science S.A. All rights reserved.