| Autor: |
Y.H. Kang, Z.H. Huang, S.C. Wang, H. Yan, R.S. Chen, J.C. Huang |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Journal of Magnesium and Alloys, Vol 8, Iss 1, Pp 103-110 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2213-9567 |
| DOI: |
10.1016/j.jma.2019.11.012 |
| Popis: |
In this work, the microstructural evolution and mechanical properties of a pre-deformed WE43 magnesium alloy when aged at 250 and 300 °C were further investigated. It is found that the abundant deformation twins introduced by pre-deformation were maintained within the alloy during the aging treatment. Second particles formed at the twin boundaries and coarsened with aging time, especially at 300 °C. When peak-aged at 250 °C, the fine metastable β″′ and β′ precipitates formed in the un-deformed alloy have been transformed into relatively large β1 and β precipitates by the pre-deformation. While peak-aged at 300 °C, the pre-deformation obviously refined the β precipitates. Mechanical properties indicate that pre-deformation can increase the yield strength by 19 MPa and 54 MPa for the peak-aged alloy at 250 °C and 300 °C, respectively, and will not obviously deteriorate the tensile elongations. Keywords: WE43 magnesium alloy, Pre-deformation, Aging, Microstructure, Mechanical properties |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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