TC4合金干滑动磨损性能的研究

发布时间：2018-05-11 07:19

本文选题：TC合金 + 摩擦层　；参考：《摩擦学学报》2015年05期

【摘要】：在MG-2000销盘式磨损试验机上考察了TC4/GCr15摩擦体系中,TC4合金的磨损行为.利用SEM、XRD对合金磨面、剖面形貌及结构进行观察与分析,利用HVS-1000显微硬度计测试磨面至心部的硬度,利用激光共聚焦显微镜测试和观察磨面的粗糙度及三维形貌.结果表明:TC4合金的磨面形成了摩擦层,其分为有氧化物摩擦层和无氧化物摩擦层,无氧化物摩擦层对磨面无保护作用,合金磨损率较高;有氧化物摩擦层对磨面具有保护作用.在600°C,摩擦层中含有大量摩擦氧化物,对磨面具有最佳的保护作用,合金磨损率最低,TC4合金具有优异的高温磨损性能.磨面粗糙度和摩擦层中的氧化物数量密切相关,在600°C,磨面被大量光滑氧化物所覆盖,磨面粗糙度最低,略高于磨损前的表面粗糙度.
[Abstract]:The wear behavior of TC4 alloy in TC4/GCr15 friction system was investigated on MG-2000 pin disk wear tester. The surface, profile and structure of the alloy were observed and analyzed by means of HVS-1000 microhardness tester, and the roughness and 3D morphology of the wear surface were measured and observed by laser confocal microscope. The results show that the wear surface of the W TC4 alloy has a friction layer, which is divided into oxide friction layer and no oxide friction layer. The non-oxide friction layer has no protective effect on the wear surface, the wear rate of the alloy is high, and the oxide friction layer has the protective effect on the wear surface. At 600 掳C, there are a lot of friction oxides in the friction layer, which has the best protective effect on the wear surface, and the lowest wear rate of TC4 alloy has excellent wear performance at high temperature. The surface roughness is closely related to the number of oxides in the friction layer. At 600 掳C, the grinding surface is covered by a large number of smooth oxides, and the surface roughness is the lowest, which is slightly higher than the surface roughness before wear.
【作者单位】：江苏大学材料科学与工程学院;
【基金】：江苏省材料摩擦学重点实验室开放基金(Kjsmcx2012004)~~
【分类号】：TG146.23

【参考文献】