TC4合金在不同摩擦体系中磨损性能的研究  

Wear Performance of TC4 Alloys in Different Tribo-systems

作　　者：王兰[1] 丁红燕 刘爱辉 王树奇[1] Wang Lan Ding Hongyan Liu Aihui Wang Shuqi(Jiangsu University, Zhenjiang 212013, China Jiangsu Provincial Key Laboratory for Interventional Medical Devices, Huanyin Institute of Technology, Huaian 223003, China)

机构地区：[1]江苏大学,江苏镇江212013 [2]淮阴工学院江苏省介入医疗器械研究重点实验室,江苏淮安223003

出　　处：《稀有金属材料与工程》2017年第9期2449-2454,共6页Rare Metal Materials and Engineering

基　　金：江苏省医疗器械重点实验室开放基金(jr1506);江苏大学高级人才启动基金(15JDG076)

摘　　要：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。Wear behavior and wear characteristic of TC4 alloy in TC4/GCr15 and TC4/W6Mo5Cr4V2 tribo-systems were studied. The morphologies,element and structure of worn surface and cross-section were analyzed with SEM,EDS and XRD. The results show that in these tribo-systems,wear rate of TC4 alloy at 25 °C is high and wear performance is poor; at 400 °C,wear rate in TC4/W6Mo5Cr4V2 is much higher than that in TC4/GCr15; wear rate of TC4 alloy at 600 °C is very low and wear rate in TC4/GCr15 is lower than that in TC4/W6Mo5Cr4V2. At 400 and 600 °C,counterface materials have different influence on wear rate of the alloy. The decrease of wear rate is related to the amount of oxides. The titanium alloy presents extremely low wear rate and excellent wear performance when worn surface contains a large amount of oxides which can exist stably.

关 键 词：TC4合金 摩擦体系 摩擦层 磨损性能 

分 类 号：TG146.23[一般工业技术—材料科学与工程]