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
Cite this article as:
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
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
Citation:
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
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.