Reducing yield asymmetry in a wrought Mg–9Al alloy by randomized texture achieved via multi-directional forging
This study shows that tension-compression yield asymmetry in a wrought Mg–9Al alloy can be reduced and even eliminated by multi-directional forging. After multi-directional forging and solution treatment, the texture was found to be randomized and maintained its features during grain growth. With th...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2020-10, Vol.796, p.140003, Article 140003 |
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| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
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| creator | Wei, Jiansheng You, Jing Zhang, Dongdong Jiang, Shunong Chen, Zhiyong Liu, Chuming |
| description | This study shows that tension-compression yield asymmetry in a wrought Mg–9Al alloy can be reduced and even eliminated by multi-directional forging. After multi-directional forging and solution treatment, the texture was found to be randomized and maintained its features during grain growth. With this texture, the asymmetry ratio was tested to be 1.1 and 1.0 when the grain size was 7 and 30 μm, respectively. After peak aging, the ratio shifted to 1.2 and 1.1, respectively. The low asymmetry ratios were attributed to the low percentage of grains oriented for {101‾2} twinning and the balanced twining activity between tension and compression. A brief summary of studies on yield asymmetry was also conducted to present the various approaches and their effectiveness on this subject. |
| doi_str_mv | 10.1016/j.msea.2020.140003 |
| format | Article |
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After multi-directional forging and solution treatment, the texture was found to be randomized and maintained its features during grain growth. With this texture, the asymmetry ratio was tested to be 1.1 and 1.0 when the grain size was 7 and 30 μm, respectively. After peak aging, the ratio shifted to 1.2 and 1.1, respectively. The low asymmetry ratios were attributed to the low percentage of grains oriented for {101‾2} twinning and the balanced twining activity between tension and compression. 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| source | Elsevier ScienceDirect Journals |
| subjects | Asymmetry Forging Grain growth Grain size Magnesium alloys Magnesium base alloys Multi-directional forging Precipitate Solution heat treatment Texture Twinning Yield asymmetry |
| title | Reducing yield asymmetry in a wrought Mg–9Al alloy by randomized texture achieved via multi-directional forging |
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