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Shape memory effect in nanocrystalline NiTi alloy processed by high-pressure torsion

Authors :
Terence G. Langdon
Hyoung Seop Kim
Hamed Shahmir
Yi Huang
Mahmoud Nili-Ahmadabadi
Jaimyun Jung
Source :
Materials Science and Engineering: A. 626:203-206
Publication Year :
2015
Publisher :
Elsevier BV, 2015.

Abstract

A NiTi alloy was processed by high-pressure torsion for 10 turns followed by post-deformation annealing at 673 K for various times. An anneal for 60 min gave a nanocrystalline microstructure with a superior shape memory effect and an improvement of more than 40% over the initial state.

Details

ISSN :
09215093
Volume :
626
Database :
OpenAIRE
Journal :
Materials Science and Engineering: A
Accession number :
edsair.doi...........ddd8dfe0b0c279af718132f8f3fad227
Full Text :
https://doi.org/10.1016/j.msea.2014.12.056