Microstructure and corrosion resistance of sputtered TiN coatings on surface of Zr-4 alloy |
| |
| Authors: | LIAO Bang-liang MA Jian-guang ZHU Wei-hu ZHU Hong-mei YANG Kai LIU Yan-hong Li Huai-lin WANG Xiao-jing and WANG Xin-lin |
| |
| Institution: | School of Mechanical Engineering, University of South China, Hengyang 421001, P. R. China;,School of Mechanical Engineering, University of South China, Hengyang 421001, P. R. China;,School of Electrical Engineering, University of South China, Hengyang 421001, P. R. China;,School of Mechanical Engineering, University of South China, Hengyang 421001, P. R. China;,School of Mechanical Engineering, University of South China, Hengyang 421001, P. R. China;,State Power Investment Corporation Science and Technology Research Institute, Beijing 102209, P. R. China,State Power Investment Corporation Science and Technology Research Institute, Beijing 102209, P. R. China,State Power Investment Corporation Science and Technology Research Institute, Beijing 102209, P. R. China and 1.School of Mechanical Engineering, University of South China, Hengyang 421001, P. R. China;2.School of Electrical Engineering, University of South China, Hengyang 421001, P. R. China; |
| |
| Abstract: | To improve the oxidation resistance and corrosion resistance of Zr-4 alloy, titanium nitride (TiN) coatings were prepared on the Zr-4 alloy with a TiN ceramic target with different ratios of N2. Microstructure and high-temperature properties of the TiN coated samples were studied by scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), X-ray diffraction meter (XRD), X-ray photoelectron spectroscopy (XPS), heat treatment furnace and autoclaves, respectively. The x value of the TiN coatings (TiNx) ranges from 0.96 to 1.33. After the introduction of N2, TiN coating exhibits a weak (200) plane and a preferred (111) orientation. The coating prepared with an N2 flow ratio of 15% shows an optimal oxidation resistance in the atmospheric environment at 800?°C. In either 1?200?°C steam environment for one hour, or deionized water at 360?°C and a pressure of 18.6?Mpa for 16 d, the opitimized TiN coated samples have no delamination or spallation; and the gains in the masses of samples are much smaller than Zr-4 alloy. These results demonstrate the effectiveness of the optimized TiN coating as the protective coating on the Zr-4 alloy under extreme conditons. |
| |
| Keywords: | Zr-4 alloy magnetron sputtering TiN coating high temperature oxidation resistance corrosion resistance |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《重庆大学学报(英文版)》浏览原始摘要信息 |
| 点击此处可从《重庆大学学报(英文版)》下载免费的PDF全文 |
|
