Influence of cooling in liquid nitrogen on shape memory effect of CuZnAlMnNi alloy

Authors
Bai, YJ Xu, XG Hao, XP Cui, DL Geng, GL
Citation
Yj. Bai et al., Influence of cooling in liquid nitrogen on shape memory effect of CuZnAlMnNi alloy, MATER RES B, 36(13-14), 2001, pp. 2415-2419
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS RESEARCH BULLETIN
ISSN journal
00255408 → ACNP
Volume
36
Issue
13-14
Year of publication
2001
Pages
2415 - 2419
Database
ISI
SICI code
0025-5408(20011101)36:13-14<2415:IOCILN>2.0.ZU;2-V
Abstract
Shape memory effect (SME) of a CuZnAlMnNi alloy after cooling in liquid nit rogen was investigated. It was found that the SME decreases when the quench ed alloy is subjected to further cooling in liquid nitrogen. The original s ubstructure of stacking faults becomes confused, and the order degree of th e alloy reduces after further cooling. The confused stacking faults are eas y to evolve into dislocations during training, which inhibits the motion of phase boundaries during the forward and reverse martensitic transformation s and finally results in the decrement of SME. (C) 2001 Elsevier Science Lt d. All rights reserved.