Transformation front in shape memory alloys

In this paper, the angle between the transformation front and the applied stress of four typical shape memory alloys (SMAs) is investigated analytically and numerically. As demonstrated, the relationship of θ against the applied stress varies according to the transformation strain of a particular SM...

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Bibliographic Details
Published in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2005-02, Vol.392 (1), p.121-129
Main Author: Huang, W.M.
Format: Article
Language:English
Subjects:
Applied sciences
Constant-composition solid-solid phase transformations: polymorphic, massive, and order-disorder
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Phase transformation
Physics
Re-orientation
Shape memory alloy
Transformation front
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Summary:In this paper, the angle between the transformation front and the applied stress of four typical shape memory alloys (SMAs) is investigated analytically and numerically. As demonstrated, the relationship of θ against the applied stress varies according to the transformation strain of a particular SMA. The predicted angle of NiTi in the uniaxial tension is very close to the measured one reported in the literature. It is suggested that θ = 45° may be used as a parameter to classify plane stress problem.
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2004.09.006