CN<em>x/TiN多层复合涂层抗水蚀性能的研究

杨兵; 丁辉; 刘传胜; 范湘军

CN_x/TiN多层复合涂层抗水蚀性能的研究

1.
武汉大学物理科学与技术学院, 武汉 430023;
2.
武汉大学动力与机械学院, 武汉430072

基金项目: 国家自然科学基金资助项目(50175082)

详细信息

中图分类号: O 484.4
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出版历程
- 收稿日期: 2002-12-23
- 修回日期: 2003-05-18
- 刊出日期: 2004-04-14

RESEARCH ON THE LIQUID IMPACT EROSION RESISTANCE OF CN_x/TiN MULTILAYER COMPOSITE COATINGS

1.
School of Physics and Technology, Wuhan University, Wuhan 430072,China;
2.
School of Power and Mechanical Engineering,Wuhan University, Wuhan 430072, China

摘要

摘要: 采用多弧-磁控溅射镀膜机在不锈钢2Cr13衬底上沉积CN_x/TiN多层复合涂层。利用光电子能谱仪(XPS)和透射电子衍射(TED)对涂层的组成和结构进行分析。利用自行研制的高压水蚀试验装置对不锈钢、高铬铸铁、司太立合金以及CN_x/TiN多层复合涂层的抗水蚀性能进行对比试验,最后对涂层的水蚀失效机理进行了探讨。试验结果表明:CN_x/TiN多层复合涂层具有较高的硬度、附着力、抗热冲击性能以及优异的抗水蚀性能,是一种优良的汽轮机末级叶片抗水蚀用涂层。
- 多层复合涂层 /
- 硬度 /
- 附着力 /
- 抗水蚀性能
Abstract: The CN_x/TiN multilayer composite coatings were deposited onto stainless steel substrates by combination of DC reaction magnetron sputtering deposition with multi-arc plating. The CN_x/TiN multilayer composite coatings are analyzed using X-ray electron energy spectrum (XPS) and transmission electron diffraction (TED). The liquid impact erosion resistance of stainless steel, high-Cr iron, cobalt-base alloys and CN_x/TiN multilayer composite coatings were researched by using a homemade high-pressure liquid impact erosion tester. Finally, the failure mechanism of CN_x/TiN multilayer composite coatings was studied. The results showed that the multilayer film, with high hardness, strong adhesion and excellent thermal shock resistance, is a good liquid impact erosion resistance coating used in the last stage blade of steam turbines.
- multilayer composite coatings /
- hardness /
- adhesion /
- liquid impact erosion resistance