Dry sliding wear maps for AA7010 (Al–Zn–Mg–Cu) aluminium matrix composite

Abstract

Wear mechanism map for aluminium matrix composite helps in predicting and understanding different wear mechanisms in a material. It also identifies the critical load and sliding speed for transition of one wear mechanism to other. In the present investigation, the wear coefficient is in the range of 10−4–10−5 which is at the boundary region between mild to severe wear. It is also observed from that there are four wear regimes; they are ultra mild wear, mild wear or oxidative wear, delamination wear and severe wear. All these facts are discussed on the basis of prevailing wear mechanism.