Effect of cold rolled on microstructure and mechanical properties of TiNi shape memory alloy

DOI

10.2991/mseee-17.2017.74How to use a DOI?

Keywords

shape memory alloy, TiNi alloy, cold rolled, mechanical properties, and microstructure.

Abstract

The effect of cold rolled reductions on microstructure and mechanical properties of TiNi alloys was investigated by means of tension test and TEM. From the results it can be determined that when the annealing temperature reached 550 , the recrystallization and grain growth began to occur after the cold deformation, and the tensile strength of the alloy decreased greatly and the elongation was more than 50%. The stress platform of stress-strain curves was decided by cold deformation and anneling temperature, which meets the Clasusius-Clapeyron equation. When the alloy rolled above 37%, large deformation energy storage is conducive to the occurrence of recrystallization. The microstructure evolves form recovery to nucleation of amorphous structures, recrystallization and grain growth as the rising of anealing temperature.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Yanfeng Li
AU  - Xiaoyun Song
AU  - Xiangqian Yin
AU  - Wenjun Ye
PY  - 2017/08
DA  - 2017/08
TI  - Effect of cold rolled on microstructure and mechanical properties of TiNi shape memory alloy
BT  - Proceedings of the 2017 International Conference on Material Science, Energy and Environmental Engineering (MSEEE 2017)
PB  - Atlantis Press
SP  - 400
EP  - 403
SN  - 2352-5401
UR  - https://doi.org/10.2991/mseee-17.2017.74
DO  - 10.2991/mseee-17.2017.74
ID  - Li2017/08
ER  -