Paper Title:
Phase Transformation and Microstructures in Ni and Cu Base Ferromagnetic Shape Memory Alloys
  Abstract

Effect of chemical composition was investigated on martensitic transformation temperatures, Curie temperature, magnetization and microstructures for Ni-(Mn, Fe, Co)-Ga and Cu-Mn-Ga systems. In the Ni-(Mn, Fe, Co)-Ga alloys, which is a modification of Ni-Mn-Ga systems, the Af and TC over 400 K were achieved. Cu-Mn-Ga alloy exhibited shape memory effect at temperatures above 373 K and had TC over 400 K. Furthermore, Cu-Mn-Ga exhibits good ductility even in polycrystalline condition unlike the case of Ni-Mn-Ga. Effect of addition of the fourth element to improve the magnetic property is under investigation.

  Info
Periodical
Materials Science Forum (Volumes 539-543)
Main Theme
Edited by
T. Chandra, K. Tsuzaki, M. Militzer , C. Ravindran
Pages
3157-3162
DOI
10.4028/www.scientific.net/MSF.539-543.3157
Citation
T. Kushima, K. Tsuchiya, Y. Sho, T. Yamada, Y. Todaka, M. Umemoto, "Phase Transformation and Microstructures in Ni and Cu Base Ferromagnetic Shape Memory Alloys", Materials Science Forum, Vols. 539-543, pp. 3157-3162, 2007
Online since
March 2007
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