Two-way shape memory effect and mechanical properties of pulse discharge sintered Ni_{2.18}Mn_{0.82}Ga

Issue title: ASAEM 2001

Article type: Research Article

Authors: Takagi, T.^{a; *} | Khovailo, V.^a | Nagatomo, T.^a | Matsumoto, M.^b | Ohtsuka, M.^b | Abe, T.^c | Miki, H.^d

Affiliations: [a] Institute of Fluid Science, Tohoku University, Sendai 980-8577, Japan | [b] Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan | [c] National Institute of Advanced Industrial Science and Technology, Tohoku Center, Sendai 983-8551, Japan | [d] Faculty of Systems, Science and Technology, Akita Prefectural University, Honjo 015-0055, Japan

Correspondence: [*] Corresponding author: Institute of Fluid Science, Tohoku University, Katahira 2-1-1, Aoba-ku, Sendai 980-8577, Japan. Tel./Fax: +81 22 217 5248; E-mail: takagi@ifs.tohoku.ac.jp

Abstract: Mechanical and shape memory properties of a polycrystallineNi_{2.18}Mn_{0.82}Ga alloy prepared by a PDS (Pulse Discharge Sintering) method were investigated. It was found that the material demonstrates the two-way shape memory effect after a loading - unloading cycle performed in the martensitic state, i.e. essentially without special training. The samples exhibiting the two-way shape memory effect show a significant enhancement in the magnitude of magnetic-field-induced strain.

DOI: 10.3233/JAE-2002-235

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 16, no. 3-4, pp. 173-179, 2002