TY - JOUR
T1 - Determination of transformation stresses of shape memory alloy thin films
T2 - A method based on spherical indentation
AU - Yan, Wenyi
AU - Sun, Qingping
AU - Feng, Xi Qiao
AU - Qian, Linmao
PY - 2006/6/12
Y1 - 2006/6/12
N2 - The forward and reverse transformation processes of superelastic shape memory alloys (SMAs) under spherical indentation are analyzed. We found that there exist two characteristic points, the bifurcating point and the returning point, in an indentation curve. The corresponding bifurcation force and return force, respectively, rely on the forward transformation stress and the reverse transformation stress. A method to determine the transformation stresses of SMA from the measure of the bifurcation and return forces is proposed. Additionally, we suggest a slope approach to determine the values of the two forces with high accuracy.
AB - The forward and reverse transformation processes of superelastic shape memory alloys (SMAs) under spherical indentation are analyzed. We found that there exist two characteristic points, the bifurcating point and the returning point, in an indentation curve. The corresponding bifurcation force and return force, respectively, rely on the forward transformation stress and the reverse transformation stress. A method to determine the transformation stresses of SMA from the measure of the bifurcation and return forces is proposed. Additionally, we suggest a slope approach to determine the values of the two forces with high accuracy.
UR - https://www.webofscience.com/wos/woscc/full-record/WOS:000238314800030
UR - https://openalex.org/W2044745464
UR - https://www.scopus.com/pages/publications/33745214449
U2 - 10.1063/1.2213018
DO - 10.1063/1.2213018
M3 - Journal Article
SN - 0003-6951
VL - 88
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 24
M1 - 241912
ER -