| 细晶超塑性变形及其在镁合金中的研究现状 |
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| 引用本文： | 詹美燕,傅定发,夏伟军,陈吉华. 细晶超塑性变形及其在镁合金中的研究现状[J]. 轻合金加工技术, 2003, 31(8): 6-10 |
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| 作者姓名： | 詹美燕 傅定发 夏伟军 陈吉华 |
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| 作者单位： | 湖南大学,材料科学与工程学院,湖南,长沙,410082 |
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| 摘 要： | 介绍了镁合金作为结构件的优越性及其应用受到限制的原因；描述了超塑性变形的特征、研究方向及超塑性变形的模型；综述了细晶对超塑性的影响，镁合金中的细化晶粒工艺，镁合金的塑性变形机制及细晶镁合金的超塑性变形机制。指出如果超塑性成形能够在镁合金中得到成功的应用，则可大大拓宽镁合金的实际应用领域。
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| 关 键 词： | 镁合金 超塑性变形 细晶 晶粒细化 研究现状 |
| 文章编号： | 1007-7235(2003)08-0006-05 |
Superplastic Deformation in Fine-grained Materials and Its Study in Magnesium Alloys |
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| ZHAN Mei-yan,FU Ding-fa,XIA Wei-jun,CHEN Ji-hua. Superplastic Deformation in Fine-grained Materials and Its Study in Magnesium Alloys[J]. Light Alloy Fabrication Technology, 2003, 31(8): 6-10 |
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| Authors: | ZHAN Mei-yan FU Ding-fa XIA Wei-jun CHEN Ji-hua |
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| Abstract: | The advantages of magnesium alloys as structural materials and the factors limiting their applications are summarized. The characteristics of superplasticity and its physical model are presented. The effects of fine grain on superplasticity and the processes to gain fine-grained magnesium alloys are reviewed. The deformation mechanism and superplastic mechanism of fine-grained magnesium alloys are discussed. The superplasticity will contribute greatly to the applications of magnesium alloys. |
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| Keywords: | magnesium alloys superplasticity fine grainy |
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