Grain size effect on multiple-stage transformations of a cold-rolled and annealed equiatomic TiNi alloy

Ti 50Ni 50 shape memory alloy cold-rolled and annealed at specific conditions can exhibit a four-stage martensitic transformation. There are two small and two large peaks which are associated with the B2 → R → B19′ transformations of large grains in the specimen center and that of small grains near...

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Bibliographic Details
Published in:Scripta materialia 2005-06, Vol.52 (12), p.1341-1346
Main Authors: Chang, S.H., Wu, S.K., Chang, G.H.
Format: Article
Language:English
Subjects:
Annealing
Applied sciences
Cold working
Differential scanning calorimetry
Exact sciences and technology
Forming
Martensitic transformation
Metals. Metallurgy
Production techniques
Rolling
Shape memory alloy
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Description
Summary:Ti 50Ni 50 shape memory alloy cold-rolled and annealed at specific conditions can exhibit a four-stage martensitic transformation. There are two small and two large peaks which are associated with the B2 → R → B19′ transformations of large grains in the specimen center and that of small grains near the rolling surface, respectively.
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2005.02.006