Microstructure and texture in Ni50Mn29Ga21  deformed by high-pressure torsion

Chulist, R.; Skrotzki, W.; Oertel, C.-G.; Boehm, A.; Lippmann, T.; Rybacki, E.

Journalpaper

Microstructure and texture in Ni50Mn29Ga21 deformed by high-pressure torsion

Abstract

The texture in a polycrystalline Ni50Mn29Ga21 magnetic shape-memory alloy deformed by high-pressure torsion (HPT) at 1173 K was investigated with high-energy synchrotron radiation. HPT changed the extrusion texture to a predominant slightly rotated cube {0 0 1} left angle bracket1 0 0right-pointing angle bracket and a weak F {1 1 0}left angle bracket1 0 0right-pointing angle bracket component. During HPT the grain structure coarsened. Phase transformations during cooling from the deformation temperature led to coarse and fine sets of martensitic twin variants. The results are discussed with respect to deformation mode, grain growth and phase transformations.

DOI Link to Publication

URL: https://publications.hereon.de/id/27891/
Authors:Chulist, R., Skrotzki, W., Oertel, C.-G., Boehm, A., Lippmann, T., Rybacki, E.
Year:2010
In: Scripta Materialia
Volume:62
Issue:9
Pages:650 - 653
Publisher:Elsevier
Type:Journalpaper
ISSN: 1359-6462
Cite as: Chulist, R.; Skrotzki, W.; Oertel, C.-G.; Boehm, A.; Lippmann, T.; Rybacki, E.: Microstructure and texture in Ni50Mn29Ga21 deformed by high-pressure torsion. In: Scripta Materialia. Vol. 62 (2010) 9, 650 - 653. (DOI: 10.1016/j.scriptamat.2010.01.016)