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Grain size independence of cryogenic strain recovery behavior in high-Zr β-Ti alloy.
- Source :
-
Materials Science & Engineering: A . Jan2024, Vol. 890, pN.PAG-N.PAG. 1p. - Publication Year :
- 2024
-
Abstract
- A significant increase in the recovery strain of a high-Zr β-Ti alloy from 2.25 % to 5.5 % when decreasing the deformation temperature from 300 K to 77 K is reported in this study. It is found that the super-elasticity of this alloy is independent of the β-grain size at 77 K. The results reveal that a coarse-grained specimen exhibited approximately the same super-elasticity as its ultra-fine grain counterpart at 77 K. The relative easiness of deformation-induced martensitic transformation and dislocation slip was substantially changed at 77 K, with a strong suppression of dislocation slip, which overshadowed the effect of grain refinement on the super-elasticity. [ABSTRACT FROM AUTHOR]
- Subjects :
- *GRAIN size
*MARTENSITIC transformations
*GRAIN refinement
Subjects
Details
- Language :
- English
- ISSN :
- 09215093
- Volume :
- 890
- Database :
- Academic Search Index
- Journal :
- Materials Science & Engineering: A
- Publication Type :
- Academic Journal
- Accession number :
- 174410946
- Full Text :
- https://doi.org/10.1016/j.msea.2023.145898