Improvement of shape memory effect in Fe-Cr-Co-Ni-Si-Mn ferromagnetic alloy with change of Mn contents

Issue title: ASAEM 2003

Article type: Research Article

Authors: Szprynagcz, Mariusz^a | Enokizono, Masato^a | Todaka, Takashi^{a; *}

Affiliations: [a] Department of Electrical and Electronic Engineering, Faculty of Engineering, Oita University, 700 Dannoharu, Oita, 870-1192, Japan

Correspondence: [*] Corresponding author. E-mail: todaka@cc.oita-u.ac.jp

Abstract: A new ferromagnetic shape memory alloy consisting of Fe-Cr-Co-Ni-Si-Mn has been developed by means of the melt spinning technique. The alloy has both the shape memory effect and the comparatively high-magnetic permeability itself. The shape memory effect can be improved with annealing upon the alloy but at the same time it loses good ferromagnetic properties. This paper discusses shape memory characteristics measured by differential scanning calorimeter (DSC) and thermo-mechanical analyzer (TMA). Improvement of the shape memory effect is observed in samples containing manganese from 5% to 6% (weight percent), after annealing at temperature over 800°C.

Keywords: shape memory alloy, shape memory effect, melt spinning method, differential scanning calorimeter (DSC), thermo-mechanical analyzer (TMA)

DOI: 10.3233/JAE-2004-659

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 20, no. 3-4, pp. 149-154, 2004