| 动态加载条件下细晶镁合金的组织特征及形成机制 |
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| 引用本文： | 杨素媛,才鸿年,王富耻.动态加载条件下细晶镁合金的组织特征及形成机制[J].北京理工大学学报,2009,29(2):168-171. |
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| 作者姓名： | 杨素媛 才鸿年 王富耻 |
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| 作者单位： | 北京理工大学,材料科学与工程学院,北京,100081 |
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| 摘 要： | 研究细晶镁合金在动态加载条件下的力学特性和组织关系,分析细晶镁合金在动态加载条件下的变形行为;探讨镁合金在动态加载条件下组织特征及演变机制.研究结果表明:细晶镁合金的动态抗压强度明显高于准静态抗压强度,具有明显的应变率强化效应.细晶镁合金在动态加载下压缩的变形组织中只有少量的孪晶,滑移是细晶镁合金在动态加载条件下塑性变形的主要机制.
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| 关 键 词： | 动态加载 镁合金 微组织 力学性能 |
| 收稿时间： | 2008/5/22 0:00:00 |
Microstructure of Fine-Magnesium and Its Mechanism of Formation Under Dynamic Loading Condition |
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| YANG Su-yuan,CAI Hong-nian and WANG Fu-chi.Microstructure of Fine-Magnesium and Its Mechanism of Formation Under Dynamic Loading Condition[J].Journal of Beijing Institute of Technology(Natural Science Edition),2009,29(2):168-171. |
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| Authors: | YANG Su-yuan CAI Hong-nian and WANG Fu-chi |
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| Affiliation: | School of Materials Science and Engineering;Beijing Institute of Technology;Beijing 100081;China |
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| Abstract: | The relationship between the dynamic mechanical properties and microstructure of fine-grained magnesium alloy are investigated.The deformation mechanism is analyzed.The quasi-static properties under compression are investigated too.It is found that the alloy possesses high dynamic strength yet low quasi-static compression strength,It has high dynamic strength as a result of the rate of strain.While only a small quantity of thin twins are found in the deformation microstructure of fine-grained magnesium unde... |
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| Keywords: | dynamic loading magnesium alloy microstructure mechanical properties |
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