Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/13469
Title: On the indeterminacy in hardness of shape memory alloys
Authors: Cheng, FT
Keywords: Hardness
Elastic-plastic materials
Elastic recovery
Vickers microhardness test
NiTi
SMA
Issue Date: 2004
Publisher: Elsevier
Source: Journal of materials science & technology, 2004, v. 20, no. 6, p. 700-702 How to cite?
Journal: Journal of materials science & technology 
Abstract: The present communication addresses an interesting problem related to the indeterminacy in hardness of superelastic NiTi reported by Xu et al.([1]). The origin of the indeterminacy is attributed to the inadequacy of the conventional Vickers hardness testing measurement which does not record elastic deformation, and thus the indeterminacy may be removed with suitable techniques. Concepts of hardness in relation to deformation are clarified. Recommendations for measuring the hardness of NiTi and other elastic-plastic materials are suggested, together with comments on the advantages and disadvantages of each of these methods.
URI: http://hdl.handle.net/10397/13469
ISSN: 1005-0302
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