Abstract
High-temperature sliding wear behavior of Cr2B-, TiC-, and TiB2-reinforced high-Mn heat-resistant alloys, as well as the base alloy, is thoroughly investigated at 1073 K, along with the underlying mechanisms. The superior high-temperature wear resistance of the particle-reinforced alloys is primarily attributed to the introduction of second-phase particles, which improves the hardness and stability of the glaze layer on the wear track surface and enhances the resistance to high-temperature plastic deformation of the substrate, leading to a reduction in the coefficient of friction and wear rate. The TiB2-reinforced alloy exhibits the most exceptional high-temperature wear resistance. These findings provide a new strategy for the design of high performance wear- and heat-resistant alloys.
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