| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5455534 | Materials Science and Engineering: A | 2017 | 28 Pages |
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 345Â 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.
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Authors
Jintao Shi, Longgang Hou, Jinrong Zuo, Linzhong Zhuang, Jishan Zhang,