| Mg-10Gd-2Y-0.6Zr合金热压缩变形及其微观组织研究 |
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| 引用本文： | 舒大禹,肖远伦,胡传凯,康凤,黄树海,宁海青,赵祖德.Mg-10Gd-2Y-0.6Zr合金热压缩变形及其微观组织研究[J].精密成形工程,2010,2(4):1-6. |
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| 作者姓名： | 舒大禹 肖远伦 胡传凯 康凤 黄树海 宁海青 赵祖德 |
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| 作者单位： | 中国兵器工业第五九研究所,重庆400039;国防科技工业精密塑性成形技术研究应用中心,重庆400039 |
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| 摘 要： | 采用GLEEBLE-1500热模拟机对Mg-10Gd-2Y-0.6Zr合金在温度为350～450℃,变形速率为0.001～0.5s-1,最大变形程度为50%的条件下,进行了恒应变速率高温压缩模拟试验研究,分析了合金高温变形时流变应力与应变速率及变形温度之间的关系以及组织变化。结果表明:合金的稳态流变应力随应变速率的增大而增大,随温度的升高而降低;在给定的变形条件下,计算出合金的变形激活能和应力指数分别为223kJ/mol和6.9,建立了合金高温变形的本构方程;根据试验分析,合金变形温度为400℃,变形速率为0.5s-1,或变形温度为450℃,变形速率为0.1s-1下进行热压缩,可以得到组织结构均匀和热塑性加工良好的匹配。
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| 关 键 词： | Mg-10Gd-2Y-0.6Zr合金 热压缩变形 变形激活能 本构方程 微观组织 |
| 收稿时间： | 2010/5/17 0:00:00 |
| 修稿时间： | 2010/7/10 0:00:00 |
Study on Hot Compression Deformation of Mg-10Gd-2Y-0.6Zr Alloy and its Microstructure |
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| SHU Da-yu,XIAO Yuan-lun,HU Chuan-kai,KANG Feng,HUANG Shu-hai,LING Hai-qing and ZHAO Zu-de.Study on Hot Compression Deformation of Mg-10Gd-2Y-0.6Zr Alloy and its Microstructure[J].Journal of Netshape Forming Engineering,2010,2(4):1-6. |
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| Authors: | SHU Da-yu XIAO Yuan-lun HU Chuan-kai KANG Feng HUANG Shu-hai LING Hai-qing and ZHAO Zu-de |
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| Affiliation: | 1.No.59 Institute of China Ordnance Industry, Chongqing 400039, China;2.National Defence Research and Application Center of Precision Plastic Forming Technology, Chongqing, 400039, China,1.No.59 Institute of China Ordnance Industry, Chongqing 400039, China;2.National Defence Research and Application Center of Precision Plastic Forming Technology, Chongqing, 400039, China,1.No.59 Institute of China Ordnance Industry, Chongqing 400039, China;2.National Defence Research and Application Center of Precision Plastic Forming Technology, Chongqing, 400039, China,1.No.59 Institute of China Ordnance Industry, Chongqing 400039, China;2.National Defence Research and Application Center of Precision Plastic Forming Technology, Chongqing, 400039, China,1.No.59 Institute of China Ordnance Industry, Chongqing 400039, China;2.National Defence Research and Application Center of Precision Plastic Forming Technology, Chongqing, 400039, China,1.No.59 Institute of China Ordnance Industry, Chongqing 400039, China;2.National Defence Research and Application Center of Precision Plastic Forming Technology, Chongqing, 400039, China and 1.No.59 Institute of China Ordnance Industry, Chongqing 400039, China;2.National Defence Research and Application Center of Precision Plastic Forming Technology, Chongqing, 400039, China |
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| Abstract: | |
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| Keywords: | Mg-10Gd-2Y-0 6Zr alloy hot compression deformation deformation activation energy constitutive equation microstructure |
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