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Advances in Materials Science and Engineering
Volume 2014, Article ID 489701, 6 pages
Research Article

Effect of Nd Addition on the Microstructure and Martensitic Transformation of Ni-Ti Shape Memory Alloys

1College of Science, Inner Mongolia University of Technology, Hohhot 010051, China
2Institute of Physics and Technology, Mongolian Academy of Sciences, 210351 Ulaanbaatar, Mongolia

Received 19 February 2014; Revised 18 April 2014; Accepted 2 May 2014; Published 20 May 2014

Academic Editor: Shuichi Miyazaki

Copyright © 2014 M. Dovchinvanchig et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The effect of rare earth element Nd addition on the microstructure and martensitic transformation behavior of Ni50Ti50−xNdx ( , 1, 3, 7, 20) shape memory alloy was investigated experimentally. The results showed that the microstructure of Ni-Ti-Nd ternary alloy consists of the NiNd phase and the NiTi matrix. One-step martensitic transformation was observed in all alloys. The martensitic transformation start temperature increased gradually with increasing Nd content for Ni-Ti-Nd alloys.