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首页> 外文期刊>Journal of Residuals Science & Technology >Microstructural and Tribological Performance of Atmospheric Plasma Spraying Ni/MoS2-SiC-Y Solid Lubricant Coatings
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Microstructural and Tribological Performance of Atmospheric Plasma Spraying Ni/MoS2-SiC-Y Solid Lubricant Coatings

机译：大气等离子喷涂Ni / MoS2-SiC-Y固体润滑剂涂层的组织和摩擦学性能

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摘要

The tribological property at high load were an important issue for the self-lubricant coatings. In this paper, the microstructures and phase compositions of the powders and the Ni/MoS2-SiC-Y coatings fabricated by atmospheric plasma spraying technology, were analyzed. Bonding strength was measured on a tensile strength tester. The friction and wear behaviours at 50N and 100N was evaluated on wear tester. The internal cohesive strength of the Ni/MoS2-SiC-Y coatings was higher than that between the coatings and the substrates. The friction coefficients of the coatings under 50 N and 100N rang at 0.2~0.4 and 0.23~0.52, respectively. The results indicated that Ni/MoS2-SiC-Y composite coatings with 12wt% (Y) lubricants coatings had good tribological properties due to the unique stratification subsurface micro-structure of the worn surface. Where, the Y improve the boundary of the flatted particles in the coatings so that the continuous triboreaction layers formed on the surfaces are observed. The main wear mechanisms of the composite coatings are adhesive wear and abrasive wear.
机译：高负荷下的摩擦学性能是自润滑涂料的重要问题。本文分析了大气等离子喷涂技术制备的粉末和Ni / MoS2-SiC-Y涂层粉末的微观结构和相组成。粘合强度在抗拉强度测试仪上测量。在磨损测试仪上评估了在50N和100N时的摩擦和磨损行为。 Ni / MoS2-SiC-Y涂层的内部粘结强度高于涂层与基材之间的内部粘结强度。在50N和100N下的涂层摩擦系数分别为0.2〜0.4和0.23〜0.52。结果表明，具有12wt％（Y）润滑剂涂层的Ni / MoS2-SiC-Y复合涂层由于磨损表面独特的分层亚表面微观结构而具有良好的摩擦学性能。其中，Y改善了涂层中扁平颗粒的边界，从而观察到在表面上形成的连续摩擦反应层。复合涂层的主要磨损机理是粘合剂磨损和磨料磨损。

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