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对TC4合金在TC4/GCr15和TC4/W6Mo5Cr4V2摩擦体系中的磨损行为及磨损特征进行了研究。利用SEM、EDS以及XRD等对合金磨面和剖面形貌、成分及结构进行了观察与分析。结果表明:两种摩擦体系中,在25℃,TC4合金的磨损率均较高,磨损性能很差;在400℃,合金在TC4/W6Mo5Cr4V2摩擦体系中的磨损率远大于TC4/GCr15摩擦体系中的;在600℃,TC4合金的磨损率均较低,且在TC4/GCr15摩擦体系中的磨损率低于TC4/W6Mo5Cr4V2摩擦体系中的。在400和600℃,磨盘材料对合金的磨损率具有不同的影响。磨损率的降低与磨损表面的氧化物数量有关,当磨损表面形成大量氧化物且能稳定存在时,磨损率极低,具有优异的耐磨性。
The wear behavior and wear characteristics of TC4 alloy in TC4 / GCr15 and TC4 / W6Mo5Cr4V2 friction systems were studied. The surface morphology, composition and structure of the alloy were observed and analyzed by SEM, EDS and XRD. The results show that the wear rates of TC4 alloy and TC4 alloy are both higher than those of TC4 / GCr15 friction system at 400 ℃ for TC4 / W6Mo5Cr4V2 friction system . At 600 ℃, the wear rate of TC4 alloy is lower and the wear rate of TC4 / GCr15 friction system is lower than that of TC4 / W6Mo5Cr4V2 friction system. At 400 and 600 ° C, the disc material has different effects on the wear rate of the alloy. The reduction of the wear rate is related to the amount of oxide on the worn surface. When a large amount of oxide is formed on the worn surface and can be stably present, the wear rate is extremely low and has excellent wear resistance.