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首页> 外文期刊>RSC Advances >Wear and friction behaviour of TiAl matrix self-lubricating composites filled with WS2, MoO3 or multilayer graphene
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Wear and friction behaviour of TiAl matrix self-lubricating composites filled with WS2, MoO3 or multilayer graphene

机译：WS2，MoO3或多层石墨烯填充的TiAl基自润滑复合材料的磨损和摩擦性能

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摘要

To further understand the lubrication effects and mechanisms of lamellar solid lubricants, wear and friction behaviours of TiAl matrix self-lubricating composites (TMSC) filled with WS2, MoO3 or multilayer graphene (MLG) are comparatively investigated under different counterface materials. Tribological results indicate that wear and friction properties of TMSC are significantly improved by adding WS2, MoO3 or MLG. Specifically, TMSC filled with MoO3 (TM) have lower friction coefficients and wear rates than TMSC filled with WS2 (TW), while TMSC filled with MLG (TG) have the lowest friction coefficients and wear rates. Meanwhile, EPMA, AFM and FESEM analyses present significant differences in worn surfaces of TMSC. Definitely, the worn surfaces of TM exhibit lighter damage and comparatively more compact films than those of TW; in contrast, the worn surfaces of TG exhibit the lightest damage and the most compact films. It can be concluded that WS2, MoO3 and MLG actually possess different lubrication effects and mechanisms.
机译：为了进一步了解层状固体润滑剂的润滑效果和机理，在不同的对接面材料下，对填充有WS2，MoO3或多层石墨烯（MLG）的TiAl基自润滑复合材料（TMSC）的磨损和摩擦行为进行了比较研究。摩擦学结果表明，通过添加WS2，MoO3或MLG可显着改善TMSC的磨损和摩擦性能。具体地说，填充MoO3（TM）的TMSC的摩擦系数和磨损率低于填充WS2（TW）的TMSC，而填充MLG（TG）的TMSC摩擦系数和磨损率最低。同时，EPMA，AFM和FESEM分析显示了TMSC磨损表面的显着差异。可以肯定的是，TM的磨损表面比TW的磨损更轻，薄膜更致密;相反，TG的磨损表面表现出最轻的损伤和最致密的薄膜。可以得出结论，WS2，MoO3和MLG实际上具有不同的润滑效果和润滑机理。

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