采用高温磨损试验机对TC11合金和H13钢进行了各种温度和载荷下的磨损试验,对比研究了它们的磨损行为。研究发现,随温度和载荷的变化,TC11合金和H13钢表现出完全不同的磨损行为。随着温度升高,TC11合金的磨损率在200℃时增加,然后大幅度降低,在400~600℃达到最低值。而H13钢的磨损率先降低,在200℃达到最低值,随后显著增加,在400~600℃出现从轻微至严重磨损的转变。其行为差异是由于氧化物的保护作用和两种材料热软化抗力的不同而引起的。 The wear tests of TC11 alloy and H13 steel under various temperatures and loads were carried out by using high temperature wear tester, and their wear behavior was compared. The study found that TC11 alloy and H13 steel showed completely different wear behaviors with temperature and load changes. With the increase of temperature, the wear rate of TC11 alloy increased at 200 ℃ and then decreased sharply, reaching the lowest value at 400 ~ 600 ℃. However, the wear rate of H13 steel decreased first and reached the lowest value at 200 ℃, then increased remarkably, and the transition from mild to severe wear occurred at 400 ~ 600 ℃. The difference in behavior is due to the protective effect of oxides and the difference in thermal softening resistance between the two materials.