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High temperature tribological behaviour of TiSiN(Ag) films deposited by HiPIMS in DOMS mode
Surface & Coatings Technology ( IF 5.3 ) Pub Date : 2020-07-08 , DOI: 10.1016/j.surfcoat.2020.126176
D. Cavaleiro , D. Veeregowda , A. Cavaleiro , S. Carvalho , F. Fernandes

Self-lubricant coatings offer an opportunity to increase tool lives in dry machining operations for hard-to-cut materials. In this work, TiSiN(Ag) coatings were deposited to assess the influence of silver in the tribological behaviour at high temperatures. Two types of counterparts were used: 6 mm diameter Al2O3 and TiAl6V4 balls. RT tests conducted against Al2O3 balls showed that silver slightly decreases the friction but deteriorates the wear resistance. Wear resistance is improved when the temperature is increased to 600 °C, when compared to RT tests. Tribology tests against TiAl6V4 balls showed that silver has a beneficial effect in the reduction of friction and wear. Additionally, silver hinders the adhesion of material to the wear track. Temperature also plays an important role in propelling the effects of silver.



中文翻译:

HiPIMS在DOMS模式下沉积的TiSiN(Ag)薄膜的高温摩擦学行为

自润滑涂层为在难切削材料的干式加工操作中提供了延长刀具寿命的机会。在这项工作中,沉积了TiSiN(Ag)涂层以评估银在高温下对摩擦学行为的影响。使用了两种类型的对应物:直径为6 mm的Al 2 O 3和TiAl6V4球。针对Al 2 O 3进行的RT测试滚珠表明,银会稍微降低摩擦,但会降低耐磨性。与RT试验相比,当温度升高至600°C时,耐磨性得到改善。针对TiAl6V4球的摩擦学测试表明,银在减少摩擦和磨损方面具有有益的作用。另外,银会阻碍材料粘附到磨损道上。温度在推动银的作用方面也起着重要作用。

更新日期:2020-07-08
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