Rare earth effect on microstructure, mechanical and tribological properties of CoCrW coatings
Rare earth effect on microstructure, mechanical and tribological properties of CoCrW coatings
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稀土对 CoCrW 涂层微观结构、机械和摩擦学性能的影响
DOI：
10.1016/j.msea.2006.08.091
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发表时间：
2007-01
期刊：
影响因子：
6.4
通讯作者：
中科院分区：
文献类型：
--
作者：
采用超声速等离子喷涂技术（SPS）制备了8种掺稀土氧化物的CoCrW涂层。采用环境扫描电镜、显微硬度计、x射线衍射仪和自行研制的高温摩擦计对喷涂涂层的性能进行了研究。结果表明：稀土能有效细化SPS涂层的微观组织，使其元素分布均匀，使SPS涂层的平均显微硬度提高，相应减小了SPS涂层的切面波动范围；此外，稀土元素能显著降低SPS涂层与玻璃在973K左右的滑动过程中的摩擦系数，并对其减摩机理进行了探讨。
Eight different CoCrW coatings doped with rare earth oxide were deposited by supersonic plasma spraying (SPS). Environmental scanning electron microscopy, microhardness tester, X-ray diffractometer, and self-developed tribometer for high temperature were employed to investigate the properties of sprayed coatings. The results show that rare earth can refine the microstructure effectively, and make the element distribution uniform, which leads to the increase of average microhardness and the corresponding decrease of fluctuation range of sectioned surface of SPS coatings. Furthermore, the rare earth can reduce the friction coefficient between the SPS coating and glass during the sliding process at about 973K largely, and the mechanism of anti-friction is also discussed.
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影响因子：
8.3
作者：
Wang, KL;Zhang, QB;Zhu, YM
通讯作者：
Zhu, YM
影响因子：
5.4
作者：
Murthy, JKN;Venkataraman, B
通讯作者：
Venkataraman, B
DOI：
10.4028/www.scientific.net/kem.280-283.1203
发表时间：
2004-12
期刊：
Key Engineering Materials
影响因子：
--
作者：
S. Zhu;Bin-shi Xu
通讯作者：
S. Zhu;Bin-shi Xu
影响因子：
5.4
作者：
Wang, XH;Zhang, M;Qu, SY
通讯作者：
Qu, SY
影响因子：
6.2
作者：
Yi, W;Zheng, CQ;Ying, GF
通讯作者：
Ying, GF