| NiCrBSi+Ni/MoS_2涂层在空间环境下的摩擦学性能 |
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| 引用本文： | 孙荣禄,牛伟,李涛,姜海富,姜利祥,郑慧奇.NiCrBSi+Ni/MoS_2涂层在空间环境下的摩擦学性能[J].航天器环境工程,2017,34(5):533-537. |
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| 作者姓名： | 孙荣禄 牛伟 李涛 姜海富 姜利祥 郑慧奇 |
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| 作者单位： | 1. 天津工业大学 机械工程学院, 天津 300387;2. 天津市现代机电装备技术重点实验室, 天津 300387;3. 北京卫星环境工程研究所, 北京 100094;4. 北京卫星环境工程研究所 可靠性与环境工程技术重点实验室, 北京 100094 |
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| 基金项目： | 国家自然科学基金项目（编号：51371125） |
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| 摘 要： | 采用激光熔覆技术在TC4合金基体上制备了Ni Cr BSi+Ni/Mo S2复合涂层,考察了该复合涂层在真空、原子氧辐照环境下的表面形貌及元素变化。利用真空摩擦磨损试验机分别完成了干摩擦条件下2种环境的摩擦磨损性能测试。结果表明:Ni Cr BSi+Ni/Mo S2复合涂层经过原子氧辐照后,有部分元素被氧化及化合物分解的现象,但并没有发生明显的材料性能改变以及润滑涂层的破坏。与TC4合金相比,2种环境下该复合涂层均具有良好的润滑减摩效果,证明Ni Cr BSi+Ni/Mo S2复合涂层具有一定的抗原子氧辐照的能力。
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| 关 键 词： | 激光熔覆 钛合金 原子氧辐照 摩擦学性能 |
| 收稿时间： | 2017/5/9 0:00:00 |
| 修稿时间： | 2017/9/12 0:00:00 |
Effects of space environment on tribological properties of NiCrBSi+Ni/MoS2 coatings |
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| SUN Ronglu,NIU Wei,LI Tao,JIANG Haifu,JIANG Lixiang,ZHENG Huiqi.Effects of space environment on tribological properties of NiCrBSi+Ni/MoS2 coatings[J].Spacecraft Environment Engineering,2017,34(5):533-537. |
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| Authors: | SUN Ronglu NIU Wei LI Tao JIANG Haifu JIANG Lixiang ZHENG Huiqi |
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| Institution: | 1. School of Mechanical Engineering, Tianjin Polytechnic University, Tianjin 300387, China;2. Tianjin Key Laboratory of Advanced Mechatronics Equipment Technology, Tianjin 300387, China;3. Science and Technology on Reliability and Environmental Engineering Laboratory, Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China;4. Beijing Institute of Spacecraft Environment Engineering, Beijing 100094, China |
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| Abstract: | The NiCrBSi+Ni/MoS2 composite coatings are prepared on the TC4 substrate by laser cladding technique. The surface morphology and the elemental composition of the composite coatings in the vacuum and after atomic oxygen irradiation are investigated. The friction and wear properties in two kinds of environments are determined by using the vacuum friction and wear tester. It is shown that after the atomic oxygen irradiation, some elements and compounds in the NiCrBSi+Ni/MoS2 composite coatings are decomposed and oxidized, but exhibit no distinct change of the material properties or lubricant coating damage are found. Compared with TC4, the composite coating exhibits good lubrication and friction reduction in both kinds of environments. The results show that the NiCrBSi+Ni/MoS2 composite coating has adequate ability to resist the atomic oxygen irradiation. |
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| Keywords: | laser cladding titanium alloy atomic oxygen irradiation tribological properties |
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