Paper Title:
Spherical Indentation of Superelastic Shape Memory Alloys
  Abstract

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.

  Info
Periodical
Key Engineering Materials (Volumes 334-335)
Edited by
J.K. Kim, D.Z. Wo, L.M. Zhou, H.T. Huang, K.T. Lau and M. Wang
Pages
601-604
DOI
10.4028/www.scientific.net/KEM.334-335.601
Citation
W. Y. Yan, Q. P. Sun, "Spherical Indentation of Superelastic Shape Memory Alloys", Key Engineering Materials, Vols. 334-335, pp. 601-604, 2007
Online since
March 2007
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Price
$32.00
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