Paper Title:
Shape Memory Behavior of Ti-Rich Ti-Ni-Cu Melt-Spun Ribbons
  Abstract

Crystal structures and shape memory properties of Ti-rich Ti52Ni23Cu25 (at.%) ribbon annealed at 450°C for 10 min and 1 h were investigated by X-ray diffraction and dynamic mechanical analyzer. As-spun ribbon was full amorphous and its crystalline peak temperature is 455.4°C. The annealed ribbon is crystallized with strong preferential (110)-B2 orientation. It shows a well-defined shape memory effect and the transformation hysteresis for the annealed ribbon under an external load in the range of 3-9 N is about 38.5°C. With annealing time increasing from 10 min to 1 h, the maximum of transformation strain under the external stress decreases from 1.93% to 1.7%. The temperature dependence of the external stress increases from 0.3 N/°C to 0.43 N/°C. The residual plastic strain is up to about 0.4% at a load of 9 N.

  Info
Periodical
Advanced Materials Research (Volumes 79-82)
Edited by
Yansheng Yin and Xin Wang
Pages
2259-2262
DOI
10.4028/www.scientific.net/AMR.79-82.2259
Citation
W. J. He, G. H. Min, O. V. Tolochko, "Shape Memory Behavior of Ti-Rich Ti-Ni-Cu Melt-Spun Ribbons", Advanced Materials Research, Vols. 79-82, pp. 2259-2262, 2009
Online since
August 2009
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$32.00
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