Analysis of Variant Orientation Before and After Compression in Polycrystalline Ni^sub 50^Mn^sub 29^Ga^sub 21^ MSMA

Issue Title: Special Issue: SMST 2008 This paper deals with the microstructure and plastic deformation of Ni^sub 50^Mn^sub 29^Ga^sub 21^ ferromagnetic shape memory alloys. In contrast to conventional shape memory alloys, plastic deformation in the martensitic phase, which is due to twin boundary mot...

Full description

Saved in:
Bibliographic Details
Published in:Journal of materials engineering and performance 2009-08, Vol.18 (5-6), p.554
Main Authors: Hürrich, C, Wendrock, H, Pötschke, M, Gaitzsch, U, Roth, S, Rellinghaus, B, Schultz, L
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Issue Title: Special Issue: SMST 2008 This paper deals with the microstructure and plastic deformation of Ni^sub 50^Mn^sub 29^Ga^sub 21^ ferromagnetic shape memory alloys. In contrast to conventional shape memory alloys, plastic deformation in the martensitic phase, which is due to twin boundary motion, may be caused not only by mechanical stress but also by an external magnetic field. The polycrystalline sample was prepared by directional solidification with a texture parallel to the heat flow. Afterwards, a heat treatment follows for chemical homogenization and stress relaxation in the austenitic state. The configuration of the twin boundaries was analyzed before and after compressing the samples. The microstructure after compression was related to the magnetic properties.[PUBLICATION ABSTRACT]
ISSN:1059-9495
1544-1024
DOI:10.1007/s11665-009-9457-z