| Al-1Mn-1Mg合金热变形过程中的动态软化行为研究 |
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| 引用本文： | 王火生,傅高升,陈鼎宁,陈永禄. Al-1Mn-1Mg合金热变形过程中的动态软化行为研究[J]. 福建工程学院学报, 2009, 7(6) |
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| 作者姓名： | 王火生 傅高升 陈鼎宁 陈永禄 |
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| 作者单位： | 1. 福建工程学院,材料科学与工程系,福建,福州,350108
2. 福建交通职业技术学院,福建,福州,350007 |
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| 基金项目： | 福建省工业科技重大专项，福建省教育厅科技计划项目 |
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| 摘 要： | 研究了Al-1Mn-1Mg合金不同变形下的流变应力曲线和微观结构特征,探讨了该铝材在热变形过程中的动态软化行为.结果表明,应变速率为0.1 s-1时,若变形温度较低,则发生了动态回复;若变形温度高于723 K,产生明显的动态再结晶;变形温度为673 K时,在低应变速率条件下,产生动态再结晶,应变速率高于0.1s-1,软化过程具有动态回复和动态再结晶的混合特征.当应变速率高于5.0s-1时,产生几何动态再结晶.
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| 关 键 词： | Al-1Mn-1Mg合金 热变形 动态再结晶 流变应力 |
Study on dynamic softening behaviour of Al-1Mn-1Mg alloy during hot deformation |
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| Wang Huosheng,Fu Gaosheng,Chen Dingning,Chen Yonglu. Study on dynamic softening behaviour of Al-1Mn-1Mg alloy during hot deformation[J]. ournal of Fujian University of Technology, 2009, 7(6) |
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| Authors: | Wang Huosheng Fu Gaosheng Chen Dingning Chen Yonglu |
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| Affiliation: | Wang Huosheng1,Fu Gaosheng2,Chen Dingning1,Chen Yonglu1(1.Materials Science and Engineering Department,Fujian University of Technology,Fuzhou 350108,China,2.Fujian Communication Technology College,Fuzhou 350007,China) |
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| Abstract: | The characters of flow stress and microstructure of Al-1Mn-1Mg alloy during hot deformation were studied and the dynamic softening behaviour was discussed.The results show that dynamic recovery occurs at low temperature with a strain rate of 0.1 s-1 and dynamic recrystallization takes place when the temperature is higher than 723 K.Dynamic recrystallization occurs at low strain rate when the temperature is 673 K.With the increase of strain rate,dynamic recovery and dynamic recrystallization take place at th... |
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| Keywords: | Al-1Mn-1Mg alloy hot deformation dynamic recrystallization flow stress |
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