The fretting behaviour of PVD TiN coatings in aqueous solutions
The fretting behaviour of PVD TiN coatings in aqueous solutions
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DOI：
10.1016/s0043-1648(96)07244-4
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发表时间：
1996-12
期刊：
影响因子：
5
通讯作者：
Pei-Qiang Wu;H. Mohrbacher;J. Celis
中科院分区：
文献类型：
--
作者：
Pei-Qiang Wu;H. Mohrbacher;J. Celis
研究了物理气相沉积 TiN 涂层和钢在蒸馏水、海水和磷酸钠溶液中与刚玉振动的摩擦和磨损情况。在 TiN 涂层表面上测量的摩擦系数保持在 0.2 左右的水平，而未涂层钢基材表现出明显更高的摩擦力。 TiN 涂层似乎因氧化磨损而退化。磨损损坏的进展很大程度上受到刚玉配合体上形成的钛氧化物转移层的影响。由于实际接触面积的减少，蒸馏水中形成的狭窄转移层导致 TiN 涂层过早穿孔。结果表明，通过在蒸馏水中添加磷酸钠可加速转移层的去除，从而避免这种不利的磨损行为。
The friction and wear of physical vapour deposition TiN coatings and steel vibrating against corundum in distilled water, seawater, and sodium phosphate solutions have been investigated. The coefficient of friction measured on the TiN-coated surface remained at a level of around 0.2 whereas the uncoated steel substrate exhibited a significantly higher friction. The TiN coating appeared to degrade by oxidational wear. The progress of the wear damage was largely influenced by the transfer layer of titanium oxides formed on the corundum counterbody. The narrow transfer layer formed in distilled water caused a premature perforation of the TiN coating due to the reduction of the real contact area. The results showed that this unfavourable wear behaviour can be avoided by adding sodium phosphate to distilled water resulting in an accelerated removal of the transfer layer.