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采用超音速等离子喷涂+低温离子渗硫技术在45#钢基体上制备了FeCrBSi/FeS复合涂层,考察了该复合涂层在大气、真空、原子氧辐照、紫外线辐照后的表面形貌、磨痕形貌及元素组成。利用真空摩擦磨损试验机分别完成了干摩擦条件下四种环境中的摩擦磨损性能测试。结果表明:复合FeCrBSi/FeS层经过原子氧及紫外线辐照后,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45#钢相比,四种环境下该复合涂层均具有良好的润滑减摩效果。此研究表明,复合FeCrBSi/FeS层具有一定的抗原子氧和紫外线辐照的能力。
The FeCrBSi / FeS composite coating was prepared on 45 # steel substrate by supersonic plasma spray + low temperature ion sulfurization technique. The surface morphology of the composite coating was investigated under atmospheric, vacuum, atomic oxygen and ultraviolet radiation , Wear scar morphology and elemental composition. The friction and wear properties of four environments under dry friction condition were tested by vacuum friction and wear tester. The results show that some elements are oxidized and the compounds decompose after the composite FeCrBSi / FeS layer is irradiated by atomic oxygen and ultraviolet rays. However, no obvious change of the material properties and destruction of the lubricating coating occurs. Compared with 45 # steel, the composite coating has good lubricating and friction reducing effect in all four environments. This study shows that the composite FeCrBSi / FeS layer has a certain anti-atomic oxygen and ultraviolet radiation ability.