Friction and wear properties of TiN, TiAIN, AlTiN and CrAlN PVD nitride coatings
Friction and wear properties of TiN, TiAIN, AlTiN and CrAlN PVD nitride coatings
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TiN、TiAlN、AlTiN 和 CrAlN PVD 氮化物涂层的摩擦磨损性能
DOI：
10.1016/j.ijrmhm.2011.09.010
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发表时间：
2012-03-01
影响因子：
3.6
通讯作者：
Zhao Jun
中科院分区：
文献类型：
--
作者：
Liu Aihua;Deng Jianxin;Zhao Jun
在YG 6（WC + 6 wt.%）基体上沉积了TiN、TiAlN、AlTiN和CrAlN四种氮化物涂层Co）硬质合金的研究。以SiC球为摩擦副材料，采用球-盘摩擦磨损试验方法，研究并比较了两种材料的摩擦磨损性能。采用扫描电镜、X射线衍射仪、能谱仪、显微硬度计和光学轮廓仪对试验结果进行了分析。结果表明，TiN和TiAlN涂层的摩擦系数和磨损率较低，高Al含量的AlTiN和CrAlN涂层的耐磨性不佳，TiN涂层的磨损机制主要是氧化和磨粒磨损。尽管观察到微槽和部分断裂。与其他涂层相比，TiAlN具有完美的摩擦学性能。高Al含量增加了AlTiN涂层的化学反应性，引起严重的粘着磨损。CrAlN涂层具有较好的抗剥落和抗粘着性能，但在这种封闭的磨损环境下，大量的磨屑堆积加速了涂层的磨损。(C)2011爱思唯尔有限公司保留所有权利。
Four nitride coatings, TiN, TiAlN, AlTiN and CrAlN were deposited on YG6 (WC + 6 wt.% Co) cemented carbide by cathodic arc-evaporation technique. The friction and wear properties were investigated and compared using ball-on-disc method at high speed with SiC ball as a counter material. The tests were evaluated by scanning electron microscopy, X-ray diffractometer, energy dispersive X-ray, micro hardness tester and an optical profilometer. The results showed that TiN and TiAlN coatings presented lower friction coefficient and lower wear rate, and that high Al content AlTiN and CrAlN coatings didn't present better anti-wear properties in this test Oxidation and abrasive wear were the main wear mechanism of TiN coating. In spite of the observation of micro-grooves and partial fractures. TiAlN possessed perfect tribological properties compared with the other coatings. High Al content increased the chemical reactivity and aroused severe adhesive wear of AlTiN coating. CrAlN coating presented better properties of anti-spalling and anti-adhesion, but abundant accumulated debris accelerated wear of the coating under this enclosed wear environment. (C) 2011 Elsevier Ltd. All rights reserved.