Friction characteristics of amorphous carbon coating against various 3d-transition metals
Friction characteristics of amorphous carbon coating against various 3d-transition metals
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DOI：
10.1016/j.triboint.2022.107690
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发表时间：
2022-06
影响因子：
6.2
通讯作者：
Jae-Il Kim;Woo Y. Lee;T. Tokoroyama;M. Murashima;N. Umehara
中科院分区：
文献类型：
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作者：
Jae-Il Kim;Woo Y. Lee;T. Tokoroyama;M. Murashima;N. Umehara
由于碳转移到其配合材料上形成的摩擦膜，DLC 具有减摩特性。然而，其摩擦系数取决于每种配合材料。本研究旨在研究一种适合类金刚石碳涂层的配合材料。我们根据碳的化学亲和力，即碳化物的可成形性和分离功，选择了四种 3d 过渡金属（Ti、Fe、Ni 和 Cu）作为配合材料。其中Ti的摩擦系数最低，其次是Fe、Ni和Cu。使用由共焦光学器件组成的拉曼光谱对配合材料上形成的摩擦膜的结构进行非破坏性表征。结果表明，Ti 可以强烈吸引碳并稳定形成含碳摩擦膜，从而实现低摩擦。
DLC has anti-friction characteristics due to the tribofilm formed by the carbon transfer to its mating material. However, its coefficient of friction depends on each mating material. This study aims to investigate a suitable mating material against diamond-like carbon coatings. We selected four 3d-transition metals (Ti, Fe, Ni and Cu) as the mating materials based on the chemical affinities for carbon, i.e., carbide formability and work of separation. Among them, Ti had the lowest coefficient of friction, followed by Fe, Ni and Cu. The structures of tribofilm formed on mating materials were characterized non-destructively using Raman spectroscopy consisting of confocal optics. It revealed that Ti could strongly attract the carbon and stably formed carbon-containing tribofilm, leading to low friction.