Effect of aging on martensitic transformation behavior of TiNiV alloy

Tong, Y. X.; Liang, C. Q.; Chen, F.; Li, L.; Zheng, Y. F.; Chung, C. Y.
October 2011
Journal of Materials Science;Oct2011, Vol. 46 Issue 19, p6432
Academic Journal
In this article, the effect of aging on martensitic transformation of TiNiV alloy was investigated. The results show that the martensitic transformation of the solution-treated shape memory alloy is a typical single-stage transformation process. The transformation temperatures of the samples aged at different temperatures for 0.5 h were lower as compared to that of the solution-treated alloy. With the increase of aging temperature, the transformation temperatures increase. After aging at 500 °C, the samples exhibit a multiple-stage transformation. The samples after aging at 500 °C for more than 5 h resulted in the transformation sequence of A → R→M1 and A → M2 upon cooling and M2 → A and M1 → A upon heating.


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