Phase equilibrium of ferromagnetic shape memory alloy Co39Ni33Al28

descriptionPublicationkeyboard_double_arrow_right Article 01 Apr 2006 English Publisher:Elsevier BVJournal:Scripta Materialia, volume 54, pages 1,299-1,304 (issn: 1359-6462,

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Authors: Z LIU; H WANG; S YU; X DAI; J CHEN; G WU; Y LIU;

doi: 10.1016/j.scriptamat.2005.12.010

Phase equilibrium of ferromagnetic shape memory alloy Co39Ni33Al28

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Abstract

Co39Ni33Al28 ribbon with a b phase structure, which exhibited a martensitic transformation to L10 phase, was found to be unstable and decomposed into a b + c phase mixture upon heating to above 973 K. The double-phase structure was found to exhibit no martensitic transformation, despite the presence of the b phase. This is ascribed to the change of the b phase composition due to the formation of the c phase. Annealing of the decomposed sample at 1473 K, followed by rapid cooling, was effective in restoring the B2 ! L10 martensitic transformation. 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Related Organizations

Chinese Academy of Sciences
China (People's Republic of)
Institute of Physics
China (People's Republic of)
University of Western Australia
Australia

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