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| 1 | 铌铪合金表面硅化物涂层的高温失效行为分析显示文摘铌铪合金为轨姿控液体火箭发动机推力室身部主要结构材料,在高温有氧的工作环境中易发生氧化粉化,必须在合金表面涂覆高温抗氧化涂层。通过分析铌铪合金表面硅化物涂层的高温氧化、高温热震、瞬时高温烧蚀和热试车行为,阐述高温条件下的氧化失效行为。试验结果为:涂层1 800℃以下氧化条件下,表面形成致密的二氧化硅氧化膜,使得涂层的氧化寿命大于2 h;1 800℃以上的超高温氧化条件下,高温热冲击作用,涂层内部形成大量的烧蚀型网格结构,表面未形成二氧化硅氧化膜,氧化寿命小于10 s;热试车考核中,涂层满足推力室外壁面温度1 350℃以下的使用工况,抗氧化能力较好,随着氧化温度升高,涂层高温抗氧化能力迅速衰减。 | 潘兆义 赵青芮 王国强 蔡刚 宋国新 | 2019 | 火箭推进2019，45，2： | 3 |
| 2 | Morphology and Mechanical Characteristics of Monolayer and Multilayer Ir Coating by Double Glow Plasma显示文摘Multilayer iridium coating was manufactured on tungsten carbide substrates by a double glow plasma process.As comparison,monolayer was also produced.The microstructure and morphology were observed using scanning electron microscopy.Grain orientation and phase were determined using X-ray diffraction.The residual stress of the coating was studied by glancing incidence X-ray diffraction.The adhesive force of the coating was measured by a scratch tester.The results showed that both monolayer and multilayer had a polycrystalline phase with a strong(110) reflection.The coating had an excellent adhesion with no evidence of delamination.The adhesive force of the monolayer and multilayer was about 50 and 43 N,respectively.The interfacial reaction between the substrate and the layer occurred and a new WIr phase was found due to the high-temperature deposition process.The residual stress in the monolayer and multilayer was-1.6 and-1.1 GPa,respectively. | 吴王平 JIANG Jinjin CHEN Zhaofeng JIANG Peng WANG Zhizhi | 2017 | Journal of Wuhan University of Technology(Materials Science)2017，32，1： | 1 |
| 3 | 耐高温抗氧化铱涂层的研究现状显示文摘金属铱具有高熔点和良好的抗氧化性能,是1 800℃以上高温抗氧化涂层的首选材料。通过对国内外制备耐高温抗氧化铱涂层的研究现状进行了综述,探讨了铼基底上铱涂层的主要失效机制,分析了复合沉积技术对于制备高致密、高稳定性铱涂层的意义。 | 高恒蛟 熊玉卿 赵栋才 王金晓 王兰喜 | 2016 | 真空与低温2016，22，4： | 1 |
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