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Understanding the wear failure mechanism of TiAlSiCN nanocomposite coating at evaluated temperatures
Tribology International ( IF 6.2 ) Pub Date : 2021-02-01 , DOI: 10.1016/j.triboint.2020.106716
Feng Guo , Kangsen Li , Xinfang Huang , Zhiwen Xie , Feng Gong

Abstract The work investigated the tribological behavior of TiAlSiCN coating at evaluated temperatures. Results showed that TiAlSiCN coating exhibited excellent wear resistance at room temperatures due to the formation of diamond-like carbon (DLC), but suffered aggravated oxidation damage and graphitization of DLC with the increased service temperature. The graphitized DLC severely weakened the toughness of the coating texture, resulting in degraded wear resistance, while the severe oxidation erosion seriously weakened the lubrication efficacy and wear resistance of the top oxide composite layer. The significant synergistic damage effect of oxidation-graphitization eventually resulted in the deteriorated anti-wear performance of this coating. These current findings provide insights into the wear failure mechanism of DLC doped coating at evaluated temperatures.

中文翻译:

了解 TiAlSiCN 纳米复合涂层在评估温度下的磨损失效机制

摘要 本文研究了 TiAlSiCN 涂层在评估温度下的摩擦学行为。结果表明,TiAlSiCN涂层由于形成类金刚石碳(DLC)而在室温下表现出优异的耐磨性,但随着使用温度的升高,DLC的氧化损伤和石墨化加剧。石墨化的DLC严重削弱了涂层质地的韧性,导致耐磨性下降,而严重的氧化侵蚀严重削弱了顶部氧化复合层的润滑功效和耐磨性。氧化-石墨化的显着协同损伤效应最终导致该涂层的抗磨性能变差。
更新日期:2021-02-01
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