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Cryogenic rolling-enhanced mechanical properties and microstructural evolution of 5052 Al-Mg alloy.
- Source :
-
Materials Science & Engineering: A . Jul2017, Vol. 701, p274-284. 11p. - Publication Year :
- 2017
-
Abstract
- The microstructure/mechanical properties, annealing behavior, and post-annealed microstructure/property relationship of 5052 Al alloy processed by cryogenic rolling (CR) and room-temperature rolling (RTR) have been investigated. It was observed that the CR-processed 5052 Al alloy exhibits a refined crystallite size along with higher-density dislocations than that of the RTR-processed sample. As a result, the tensile strength of the CR-processed alloy increased significantly to 345 MPa because of the enhanced dislocation strengthening and grain-boundary strengthening. The effective suppression of dynamic recovery and accumulation of high-density dislocations caused by CR help accelerate recrystallization kinetics and refine the grain size, gaining higher yield strength for the post-annealed CR 5052 Al alloy compared to that of other commercial 5052-O Al alloys. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09215093
- Volume :
- 701
- Database :
- Academic Search Index
- Journal :
- Materials Science & Engineering: A
- Publication Type :
- Academic Journal
- Accession number :
- 124075692
- Full Text :
- https://doi.org/10.1016/j.msea.2017.06.087