High-temperature wear behaviors of a laser melted Cuss/(Cr5Si3–CrSi) metal silicide alloy

Wear-resistant Cu-based solid solution-toughened Cr5Si3–CrSi metal silicide alloy is fabricated by the laser melting process using Cr–Cu–Si elemental powder blends. High-temperature wear resistance of the laser melted Cuss/(Cr5Si3–CrSi) metal silicide alloy is evaluated on a self-designed pin-on-disc high-temperature sliding wear tester in open air. The alloy has excellent wear resistance under high-temperature sliding wear test conditions due to its unique microstructural characteristics and tribological behaviors of the phase constituents. With the increasing wear test temperature, the wear mass loss of the alloy decreases slightly.