V. Podhurska, Oleksandr Kuprin, M. Bortnitskaya, Orest Ostash, T.A. Prikhna, Roman Chepil, Volodymyr Sverdun, I. Kolodiy, Vitaliy Belous
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引用次数: 0
摘要
研究了使用基于 MAX 相 Ti2AlC 阴极的真空电弧沉积法获得的涂层在 20 °C 和 500 °C 时的成分、结构和摩擦学特性。将这些特性与氮化钛涂层的特性进行了比较。结果表明，在电位为 -50 V 时，会形成 TiC 和 Ti3AlC 相的复合涂层。同时，在电位为 -100 V 时，形成了由 TiC 和 α-Ti 组成的复合涂层。在 20 °C 时，这些涂层与 ShKh15 钢球接触时的摩擦系数和比磨损率与 TiN 涂层相当，载荷为 2 N。在 500 °C 时，复合涂层（TiC+α-Ti）的耐磨性是 TiN 涂层的两倍。涂层的显微硬度与摩擦学特性之间没有明显的相关性。
Structural and Tribology Properties of Ti-Al-C Coatings Deposited by Vacuum Arc Method
The composition, structure, and tribological characteristics at 20 °C and 500 °C of coatings obtained by the vacuum arc deposition method using a MAX phase Ti2AlC based cathode were investigated. These characteristics were compared to those of titanium nitride coating. It was shown that at a potential of -50 V, a composite coating of TiC and Ti3AlC phases forms. Meanwhile, at a potential of -100 V, a composite consisting of TiC and α-Ti is formed. At 20 °C, the friction coefficient and specific wear rate of these coatings in contact with a ball made of ShKh15 steel under a load of 2 N are comparable to those of TiN coating. At 500 °C, the wear resistance of the composite (TiC+α-Ti) coating is twice as high as that of TiN coatings. There was no clear correlation between microhardness and the tribological characteristics of the coatings.
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