Published 04/08/2025 at 1033 × 676 in Wear properties of a new Al80Mg10Si5Cu5 multicomponent alloy Fig. 14. Evolution of coefficient of friction for the experimental alloys at 200 °C (0,1 m/s) with the surface layer. Fig. 14. Evolution of coefficient of friction for the experimental alloys at 200 °C (0,1 m/s) with the surface layer.