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| 镁合金超塑性研究进展 |
| Research Progress in Superplasticity of Magnesium Alloys |
| Received:May 26, 2020 Revised:September 10, 2020 |
| DOI：10.3969/j.issn.1674-6457.2020.05.014 |
| 中文关键词: 镁合金 超塑性 伸长率 |
| 英文关键词: magnesium alloy superplastic elongation |
| 基金项目:国家自然科学基金（51334006） |
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| 中文摘要: |
| 镁合金因其密度小、比性能好、减震性能好、电磁屏蔽性好等优异性能，在航空航天、电子产品、汽车行业等有着良好的应用前景。目前镁合金还没有投入大规模工业化生产，主要原因之一就是镁合金塑性变形能力差，难以成形为复杂形状的部件。超塑性成形为这一问题的解决提供了可能，因此镁合金超塑性的研究受到了广泛重视。综述了近年来国内外Mg-Al系、Mg-Zn系、Mg-Li系和Mg-Gd系镁合金超塑性研究进展，发现不同体系的镁合金经过不同的处理方法，在理想条件下的超塑性伸长率均能达到400%以上，表现出优异的超塑性，最后对今后进一步的发展方向作出了展望。 |
| 英文摘要: |
| Due to its ultra-light density, high specific properties, good damping performance and great electromagnetic shielding capability, magnesium alloy has a good application prospect in aerospace, electronic products, automobile industry, etc. Magnesium alloys have not achieved large-scale industrial application yet. One of the main reasons is that the plasticity of magnesium alloy is poor, so it is difficult to form complex shape of parts. The superplastic forming provides a possible solution to this problem, so the study of magnesium alloy superplasticity has received extensive attention. In this paper, the research status of superplasticity of Mg-Al, Mg-Zn, Mg-Li and Mg-Gd system magnesium alloys at home and abroad in recent years was reviewed, it was found that the elongation of magnesium alloys in different systems can reach more than 400% under ideal conditions with different processing, showing excellent superplasticity. Finally, the further research direction was prospected. |
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