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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 2    No. 4    November 1992

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TRANSFORMATION BEHAVIOUR OF TiNi ALLOYS WITH ONE-WAY OR TWO-WAY SHAPE MEMORY EFFECT
Qin Yong, Chen Li, Li Zongquan

Institute of Solid State Physics, Academia Sinica, Hefei 230031, China

Abstract:The transformation behaviour of the near-equiatomic TiNi alloys with one-way or two-way shape memory effect has been examined using DSC and TEM. The transformation sequence with cooling is B2→M for the one-way memory specimens and the B2→R→R+M for the two-way memory specimens. The transformation from B2 to R is a first-order transformation and the R phase is not premartensitic, which is associated with a two-way memory effect.

 

Key words:   transformation  one-way memory  two-way memory  TiNi alloy

ISSN 1672-7029
CN 43-1423/U

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