Pseudoelasticity and elastocaloric effect of Fe75.5Ga24.5 single crystal

-, - and -oriented single crystals of Fe 75.5 Ga 24.5 alloy were prepared by optical float zone melting method. The pseudoelasticity behavior and elastocaloric effect of the single crystals were investigated, as well as the associate microstructures. D0 3 phase structure was realized by solution tre...

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Bibliographic Details
Published in:Rare metals 2023-06, Vol.42 (6), p.1989-1993
Main Authors: Xu, Kang-Yi, Wang, Jing-Min, Yu, Qian, Zhang, Chi, Jiang, Cheng-Bao
Format: Article
Language:English
Subjects:
Adiabatic flow
Biomaterials
Change detection
Chemistry and Materials Science
Crystal structure
Deformation
Energy
Float zones
Materials Engineering
Materials Science
Metallic Materials
Nanoscale Science and Technology
Physical Chemistry
Pseudoelasticity
Recoverable strain
Single crystals
Solid phases
Solution heat treatment
Zone melting
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Summary:-, - and -oriented single crystals of Fe 75.5 Ga 24.5 alloy were prepared by optical float zone melting method. The pseudoelasticity behavior and elastocaloric effect of the single crystals were investigated, as well as the associate microstructures. D0 3 phase structure was realized by solution treatment at 800 °C and annealed at 600 °C for 10 h. The compressive deformation behavior exhibits significant dependence on the crystalline directions. Excellent pseudoelasticity with recoverable strain up to 5% is obtained by compression along direction. The pseudoelasticity disappears after five deformation cycles. Adiabatic temperature change is simultaneously detected during the pseudoelasticity, especially during loading process.
ISSN:1001-0521
1867-7185
DOI:10.1007/s12598-017-0972-z