The effect of surface conditions on the elevated temperature sliding contact deformation of AA5083 alloy

Elevated temperature sliding contact experiments were carried out on an Al-Mg alloy AA5083 to study the formation of oxide fibres on their surface. Deformation and friction tests were conducted at a constant strain rate of 4×10−2 s−1 at temperatures 350 °C, 450 °C and 545 °C. The samples were tested in two surface conditions, namely in as-received condition, with surfaces covered with a tribolayer generated during previous rolling processes and after being polished to remove the tribolayers.