Abstract
This article studies the dependence of martensitic transformation on Mn:Sn ratio in Ni43Co7Mn50−x Sn x alloy and the shape memory behavior of Ni43Co7Mn43Sn7 in detail. The results show that all the transformation temperatures show a linear decrease with the decrease of Mn:Sn ratio. The similar tendency is also found in the change of T c. Ni43Co7Mn43Sn7 alloy exhibits a moderate shape memory effect and the maximum shape recovery strain is 2.96%. Temperature memory effect is also observed in Ni43Co7Mn43Sn7 alloy.
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The work was supported by the National Natural Science Foundation of China (51101040 and 51201044) and Harbin Special Fund for Innovation Talents of Science and Technology (2010RFQXG037).
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This article is an invited paper selected from presentations at the International Conference on Shape Memory and Superelastic Technologies 2011, held November 6-9, 2011, in Hong Kong, China, and has been expanded from the original presentation.
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Chen, F., Tong, Y.X., Lu, X.L. et al. Martensitic Transformation and Shape Memory Effect of NiCoMnSn High Temperature Shape Memory Alloy. J. of Materi Eng and Perform 21, 2509–2514 (2012). https://doi.org/10.1007/s11665-012-0371-4
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DOI: https://doi.org/10.1007/s11665-012-0371-4