Paper Title:
Deformation Behavior of Functionally Graded Ti-Ni Shape Memory Alloys
  Abstract

Deformation behavior of temperature gradient anneal(TGA) treated Ti-50.0Ni(at%) alloys were investigated by means of thermal cycling tests under constant load and tensile tests. TGA treated Ti-Ni alloy wires showed a sequential deformation behavior along the length of the specimen since the stress required for the B2-B19’ transformation increased with decreasing annealing temperature. Considerably large residual elongation(about 0.4 %) occurred in the TGA treated Ti-Ni alloy under the applied stress of 80 MPa, which is ascribed to the fact that yield stress of the sample annealed at 823 K is lower than the stress required for the B2-B19’ transformation of the sample annealed at 658 K.

  Info
Periodical
Materials Science Forum (Volumes 544-545)
Edited by
Hyungsun Kim, Junichi Hojo and Soo Wohn Lee
Pages
211-214
DOI
10.4028/www.scientific.net/MSF.544-545.211
Citation
T. H. Nam, H. G. Kim, J. Y. Choi, J. M. Lee, S. B. Kang, C. Y. Lim, "Deformation Behavior of Functionally Graded Ti-Ni Shape Memory Alloys", Materials Science Forum, Vols. 544-545, pp. 211-214, 2007
Online since
May 2007
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$32.00
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