| Autor: |
Hui-Hu Lu, Li Lu, Wang-Gang Zhang, Zhen-Guang Liu, Wei Liang |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Journal of Materials Research and Technology, Vol 17, Iss , Pp 2495-2504 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2238-7854 |
| DOI: |
10.1016/j.jmrt.2022.02.015 |
| Popis: |
In this paper, a process of corrugated wide limit alignment (CWLA) was used to improve the stretch formability of large-dimension AZ31 Mg alloy sheets by inducing tensile twins. The effects of {10 1¯ 2} tensile twins on microstructure evolution, mechanical properties and stretch formability of AZ31 Mg alloy sheet was studied. The results indicated that the CWLA samples exhibited a weakened basal texture and a high fraction of twin boundaries due to the twinning and recrystallization behavior. After CWLA and annealing for 30min at 300 °C, the strain-hardening exponent value increased from 0.2 to 9.4, the Lankford value decreased from 2.85 to 0.37, and the Erishen value was increased by ∼95% compared to the as-received samples. The present study would provide a new insight into the development of Mg alloys having excellent stretch formability. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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