A Novel Training-Free Processed Fe-Mn-Si-Cr-Ni Shape Memory Alloy Undergoing δ → γ Phase Transformation

We not only suppress the formation of twin boundaries but also introduce a high density of stacking faults by taking advantage of δ  →  γ phase transformation in a processed Fe-19.38Mn-5.29Si-8.98Cr-4.83Ni shape memory alloy. As a result, its shape memory effect is remarkably improved after heating...

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Bibliographic Details
Published in:Metallurgical and materials transactions. A, Physical metallurgy and materials science Physical metallurgy and materials science, 2016-07, Vol.47 (7), p.3277-3283
Main Authors: Peng, Huabei, Wang, Gaixia, Du, Yangyang, Wang, Shanling, Chen, Jie, Wen, Yuhua
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Communication
Materials Science
Metallic Materials
Nanotechnology
Structural Materials
Surfaces and Interfaces
Thin Films
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Summary:We not only suppress the formation of twin boundaries but also introduce a high density of stacking faults by taking advantage of δ  →  γ phase transformation in a processed Fe-19.38Mn-5.29Si-8.98Cr-4.83Ni shape memory alloy. As a result, its shape memory effect is remarkably improved after heating at 1533 K (1260 °C) (single-phase region of δ ferrite) and air cooling due to δ  →  γ phase transformation.
ISSN:1073-5623
1543-1940
DOI:10.1007/s11661-016-3521-8