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采用高温磨损试验机对TC11合金在400、500、600℃进行磨损试验,研究对磨材料GCr15和M2钢对TC11合金的磨损行为的影响。结果表明,TC11合金无论与GCr15还是M2钢对磨,磨损率均随温度的升高而降低,TC11合金表现出优异的高温耐磨性。在大多数情况下,TC11合金磨损率随载荷增加均处于较低值且波动较小,但在400℃、超过200 N(与GCr15钢对磨)时和在400、500℃,大于200 N(与M2钢对磨)时磨损率显著增加。与M2钢对磨比与GCr15钢对磨使TC11合金磨损率升高。TC11合金的高耐磨性归因于摩擦氧化物层的保护作用。硬的对磨材料(M2钢)比软的对磨材料(GCr15钢)易于破坏TC11合金表面摩擦氧化物层而损害其保护作用。
The wear test of TC11 alloy at 400, 500 and 600 ℃ was carried out by using a high temperature abrasion tester to study the wear behavior of TC11 alloy on GCr15 and M2 steel. The results show that the wear rate of TC11 alloy decreases with the increase of temperature, no matter with GCr15 or M2. TC11 alloy shows excellent high temperature wear resistance. In most cases, TC11 alloy wear rates were lower and fluctuated with increasing load, but were lower at 400 ° C than 200 N (with GCr15 steel pair) and at 400,500 ° C and greater than 200 N ( And M2 steel grinding) wear rate increased significantly. The wear rate of TC11 alloy increased with the wear rate of M2 steel and that of GCr15 steel. The high wear resistance of the TC11 alloy is attributed to the protective effect of the friction oxide layer. The harder wear-resistant material (M2 steel) than the soft wear-resistant material (GCr15 steel) is easy to damage the TC11 alloy surface friction oxide layer and its protective effect.