Modeling the Hot Ductility of AA6061 Aluminum Alloy After Severe Plastic Deformation

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• 作者：A. A. Khamei ; K. Dehghani ; R. Mahmudi
• 刊名：JOM Journal of the Minerals, Metals and Materials Society
• 出版年：2015
• 出版时间：May 2015
• 年：2015
• 卷：67
• 期：5
• 页码：966-972
• 全文大小：619 KB
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• 作者单位：A. A. Khamei (1) r> K. Dehghani (1) r> R. Mahmudi (2) r>r>1. Mining and Metallurgical Engineering Department, Amirkabir University of Technology, 15914, Tehran, Iran r> 2. School of Metallurgical and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran r>
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistryr>Materials Sciencer>Metallic Materialsr>Nanotechnologyr>Crystallographyr>
• 出版者：Springer Boston
• ISSN：1543-1851

文摘

Solutionized AA6061 aluminum alloy was processed by equal-channel angular pressing followed by cold rolling. The hot ductility of the material was studied after severe plastic deformation. The hot tensile tests were carried out in the temperature range of 300-00°C and at the strain rates of 0.0005-.01?s?. Depending on the temperature and strain rate, the applied strain level exhibited significant effects on the hot ductility, strain-rate sensitivity, and activation energy. It can be suggested that the possible mechanism dominated the hot deformation during tensile testing is dynamic recovery and dislocation creep. Constitutive equations were developed to model the hot ductility of the severe plastic deformed AA6061 alloy.