Spherical indentation of superelastic shape memory alloys

Yan, Wenyi and Sun, Qingping 2007, Spherical indentation of superelastic shape memory alloys, Key engineering materials, vol. 334, no. 335, pp. 601-604.


Title Spherical indentation of superelastic shape memory alloys
Author(s) Yan, Wenyi
Sun, Qingping
Journal name Key engineering materials
Volume number 334
Issue number 335
Start page 601
End page 604
Publisher Trans Tech Publications
Place of publication Aedermannsdorf, Switzerland
Publication date 2007-03-15
ISSN 1013-9826
Keyword(s) spherical indentation
transformation stress
shape memory alloys
hardness
Summary Spherical indentation of superelastic shape memory alloys (SMAs) has been theoretically analyzed. Two characteristic points on the superelastic indentation curve have been discovered. The bifurcation force corresponding to the bifurcation point relies on the forward transformation stress and the return force corresponding to the return point relies on the reverse transformation stress.
Based on these theoretical relationships, an approach to determine the transformation stresses of superelastic SMAs has been proposed. To improve the accuracy of the measurement, a slope method to locate the two characteristic points from the slope curves is further suggested. Additionally, the spherical indentation hardness was also analyzed.
Language eng
Field of Research 091202 Composite and Hybrid Materials
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2007, Trans Tech Publications
Persistent URL http://hdl.handle.net/10536/DRO/DU:30007123

Document type: Journal Article
Collection: School of Engineering and Information Technology
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