Coefficients of friction of TiN coatings with preferred grain orientations under dry condition
Coefficients of friction of TiN coatings with preferred grain orientations under dry condition
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DOI：
10.1016/j.wear.2008.02.019
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发表时间：
2008-09-20
期刊：
影响因子：
5
通讯作者：
Aoki, Kohshiro
中科院分区：
文献类型：
--
作者：
Azushima, Akira;Tanno, Yasuo;Aoki, Kohshiro
为了降低机械零件的摩擦损失，研究了电弧离子镀（AIP）沉积的择优取向TiN涂层的摩擦性能。TiN涂层的择优取向是通过改变衬底偏压来控制的。在球-盘摩擦试验机上，在-200 V的衬底偏压下沉积的具有（111）择优晶粒取向的TiN涂层的摩擦系数低于具有（200）择优晶粒取向的TiN涂层。为了了解TiN沉积试样的摩擦性能，研究了TiN涂层的微观结构和化学成分。在-200 V下沉积的具有（111）优选晶粒取向的TiN涂层的良好摩擦性能是由于在SUJ 2球表面上产生薄的Ti氧化物层，该Ti氧化物层具有良好的润滑性并且防止Fe从SUJ 2球粘附到TiN涂层。(c)2008 Elsevier B. V.保留所有权利。
In order to decrease the friction loss of mechanical parts, frictional properties of TiN coatings with preferred grain orientations deposited by arc ion plating (AIP) were investigated. The preferred grain orientation of TiN coatings is controlled by changing the substrate bias voltage. In a ball-on-disc tribometer, a TiN coating with a (111) preferred grain orientation deposited at a substrate bias voltage of -200 V revealed a lower coefficient of friction than one with a (200) preferred grain orientation. In order to understand the frictional properties of the TiN-deposited specimens, the microstructutes and chemical compositions of TiN coatings were investigated. The good frictional properties of the TiN coating with a (111) preferred grain orientation deposited at -200V is due to the creation of a thin Ti oxide layer on the surface of SUJ2 ball that has good lubricity and prevents adhesion of Fe from SUJ2 ball to TiN coatings. (c) 2008 Elsevier B.V. All rights reserved.