| Effect of Nitrogen Ion Implantation on the Structure and Corrosion Resistance of Equiatomic NiTi Shape Memory Alloy |
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| 引用本文： | HUA Yingjie WANG Chongtai MENG Changgong YANG Dazhi. Effect of Nitrogen Ion Implantation on the Structure and Corrosion Resistance of Equiatomic NiTi Shape Memory Alloy[J]. 武汉理工大学学报(材料科学英文版), 2006, 21(4): 36-39. DOI: 10.1007/BF02841200 |
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| 作者姓名： | HUA Yingjie WANG Chongtai MENG Changgong YANG Dazhi |
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| 作者单位： | [1]Department of Chemistry, Hainan Normal University, Haikou 571158, China [2]Department of Chemistry, Dalian University of Technology, Dalian 116023, China [3]Department of Materials Engineering, Dalian University of Technology, Dalian 116023, China |
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| 摘 要： | To protect the surface of NiTi from corrosion, an ion implantation method was proposed. In the present work, a surface oxidized sample was implanted with nitrogen at energy of 100 keV. The corrosion resistarwe property was examined by the anodic polarization method in a simulated body fluid （SBF） at a temperature of 37 ℃ and contrasted to non-implanted NiTi samples. The composition and structure of the implanted layers were investigated by XPS. The experimental results from the electrochemical measurements provide an evidence that the nitrogen ion-implantation increases the corrosion resistance of NiTi shape memory alloy.
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| 关 键 词： | 氮离子植入 腐蚀电阻 表面氧化 阳极偏振 NiTi |
| 收稿时间： | 2005-03-08 |
| 修稿时间： | 2006-04-12 |
Effect of nitrogen ion implantation on the structure and corrosion resistance of equiatomic NiTi shape memory alloy |
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| Hua Yingjie Ph D,Wang Chongtai,Meng Changgong,Yang Dazhi. Effect of nitrogen ion implantation on the structure and corrosion resistance of equiatomic NiTi shape memory alloy[J]. Journal of Wuhan University of Technology. Materials Science Edition, 2006, 21(4): 36-39. DOI: 10.1007/BF02841200 |
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| Authors: | Hua Yingjie Ph D Wang Chongtai Meng Changgong Yang Dazhi |
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| Affiliation: | (1) Department of Chemistry, Hainan Normal University, 571158 Haikou, China;(2) Department of Chemistry, Dalian University of Technology, 116023 Dalian, China;(3) Department of Materials Engineering, Dalian University of Technology, 116023 Dalian, China |
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| Abstract: | To protect the surface of NiTi from corrosion, an ion implantation method was proposed. In the present work, a surface oxidized sample was implanted with nitrogen at energy of 100 keV. The corrosion resistance property was examined by the anodic polarization method in a simulated body fluid (SBF) at a temperature of 37°C and contrasted to non-implanted NiTi samples. The composition and structure of the implanted layers were investigated by XPS. The experimental results from the electrochemical measurements provide an evidence that the nitrogen ion-implantation increases the corrosion resistance of NiTi shape memory alloy. Funded by the National Natural Science Foundation of China (20273012) and Education Government of Hainan Province (Hjkj200415) |
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| Keywords: | biocompatibility NiTi shape memory alloy ion implantation corrosion resistance |
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