Surface properties of nitrogen-ion-implanted TiNi shape memory alloy

Chongyan Leng; Teruo Asaoka; Rong Zhou

doi:10.1016/S1005-8850(06)60034-0

Volume 13 Issue 2

Apr. 2006

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文章导航 > 矿物冶金与材料学报（英文） > 2006 > 13(2): 154-157

Chongyan Leng, Teruo Asaoka, and Rong Zhou, Surface properties of nitrogen-ion-implanted TiNi shape memory alloy, J. Univ. Sci. Technol. Beijing, 13(2006), No. 2, pp. 154-157. https://doi.org/10.1016/S1005-8850(06)60034-0

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Chongyan Leng, Teruo Asaoka, and Rong Zhou, Surface properties of nitrogen-ion-implanted TiNi shape memory alloy, J. Univ. Sci. Technol. Beijing, 13(2006), No. 2, pp. 154-157. https://doi.org/10.1016/S1005-8850(06)60034-0

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Materials

Surface properties of nitrogen-ion-implanted TiNi shape memory alloy

School of Materials and Metallurgical Engineering, Kunming University of Science and Technology, Kunming 650093, China
Department of Intelligent and Mechanical Engineering, Tokyo Denki University, Hatoyama, Hiki-Gun Saitama 350-0394, Japan
School of Mechanical Engineering, Kunming University of Science and Technology, Kunming 650093, China

通讯作者:
Chongyan Leng E-mail: lengchongyan22@yahoo.com.cn

中文摘要

X-ray diffraction (XRD), auger electron spectroscopy (AES), and X-ray photoelectron spectroscopy (XPS) were used to characterize the surface properties of the N⁺-ion-implanted TiNi alloy. There is a high nitrogen content region at the outermost surface of the N⁺-ion-implanted TiNi alloy. The detected nitrogen exists mainly in the form of TiN. Small amounts of Ti₃O₅ and TiO₂ also exist on the surface of the N⁺-ion-implanted TiNi sample. The modified layer of the N+-ion-implanted sample can work as an obstacle layer of the nickel’s dissolution, which obstructs Ni dissolving from the TiNi surface effectively.

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Materials

Surface properties of nitrogen-ion-implanted TiNi shape memory alloy

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Abstract

Abstract

X-ray diffraction (XRD), auger electron spectroscopy (AES), and X-ray photoelectron spectroscopy (XPS) were used to characterize the surface properties of the N⁺-ion-implanted TiNi alloy. There is a high nitrogen content region at the outermost surface of the N⁺-ion-implanted TiNi alloy. The detected nitrogen exists mainly in the form of TiN. Small amounts of Ti₃O₅ and TiO₂ also exist on the surface of the N⁺-ion-implanted TiNi sample. The modified layer of the N+-ion-implanted sample can work as an obstacle layer of the nickel’s dissolution, which obstructs Ni dissolving from the TiNi surface effectively.
- shape memory alloys;
- TiNi;
- surface properties