[1]辛仁龙,刘庆. 镁合金塑性变形力学行为与微观组织研究进展[J].中国材料进展,2011,(2):016-28.
XIN Renlong,LIU Qing. Research Progress on Plastic Deformation Mechanisms and Microstructure of Mg Alloys[J].MATERIALS CHINA,2011,(2):016-28.
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镁合金塑性变形力学行为与微观组织研究进展(
)
中国材料进展[ISSN:1674-3962/CN:61-1473/TG]
- 卷:
-
- 期数:
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2011年第2期
- 页码:
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016-28
- 栏目:
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特约研究论文
- 出版日期:
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2011-02-25
文章信息/Info
- Title:
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Research Progress on Plastic Deformation Mechanisms and Microstructure of Mg Alloys
- 作者:
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辛仁龙; 刘庆
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(重庆大学材料科学与工程学院 国家镁合金材料工程研究中心，重庆 400030)
- Author(s):
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XIN Renlong; LIU Qing
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(National Engineering Research Center for Mg Alloys, College of Materials Science and Engineering, Chongqing University, Chongqing 400030, China)
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- 关键词:
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; 镁合金; 塑性变形; 机械孪生; 位错滑移; 织构; 各向异性
- 文献标志码:
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A
- 摘要:
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介绍了镁合金在单轴压缩、单轴拉伸、轧制和挤压条件下塑性变形的力学行为及微观组织结构演变规律。简述了镁合金中二次拉伸孪生现象以及各种变形条件下孪生与孪生变体类型的选择规律。基于对镁合金位错滑移、机械孪生及动态回复与再结晶行为的认识，对镁合金力学行为的各向异性、轧制与挤压成型能力的影响规律进行了探讨，强调了初始织构对变形机制、动态再结晶及成型能力的重要影响。最后讨论了析出强化镁合金塑性变形与强韧化机理。
- Abstract:
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Mechanical behavior and microstructure evolution of Mg alloys during compression, tension, rolling and extrusion were reviewed. Different types of twinning and twin variants formed in Mg alloys under different deformation conditions, especially double extension twins, were reported. Based on the understandings of dislocation slip, mechanical twinning and dynamic recovery and recrystallization, mechanisms of mechanical property anisotropy, rolling and extrusion workability were discussed. The effect of initial texture on deformation mechanisms, dynamic recrystallization and workability was stressed. Plastic deformation and strengthening mechanism of precipitation strengthened Mg alloy were also discussed.
更新日期/Last Update:
2011-04-14