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《重庆大学学报(英文版)》 2010-01
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Static recrystallization process comparison of AZ31 magnesium alloy deformed by cold compression and cold forging

LIU Yu 1,2,LIU Tian-mo 2 1 National Key Laboratory for Nuclear Fuel and Materials,Nuclear Power Institute of P.R.China,Chengdu 610041,P.R.China 2 National Engineering Research Center for Magnesium Alloys,Chongqing University,Chongqing 400045,P.R.China  
We deformed AZ31 magnesium alloys by cold forging and cold compression process,and investigated their static recrystallization kinetics during the annealing process.The results demonstrate that the relationship between the annealing time and the fraction of recrystal grains can be described by the Johnson-Mehl-Avrami-Kolmogorov(JMAK)equation.Based on the kinetics analysis,we calculated that the activation energy of recrystallization by cold forging and cold compression were about 53.5 kJ/mol and 85.0 kJ/mol,respectively.The activation energy of cold compression process was higher than that of the cold forging process because the latter had high-rate deformation,which caused more energy storage during deformation.
【Fund】: Funded by the National Basic Research Program of China(973Program)(No.2007CB613700)
【CateGory Index】: TG319
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【Citations】
Chinese Journal Full-text Database 1 Hits
1 PENG Wei-ping,PENG Cai-hong,LI Pei-jie,ZENG Pan(Key Laboratory for Advanced Manufacturing byMaterials Processing Technology,Department ofMechanical Engineering,Tsinghua University,Beijing 100084,China);Kinetics of recrystallization for AZ31B magnesium alloy[J];The Chinese Journal of Nonferrous Metals;2006-10
【Co-citations】
Chinese Journal Full-text Database 5 Hits
1 LIU Tian-mo,LIU Yu,LU Li-wei,LI Nan,HE Shun,SUN Chao-yong(National Engineering Research Center for Magnesium Alloys,Chongqing University,Chongqing 400044,China);Kinetics of Recrystallization of Cold Forging AZ31 Magnesium Alloy[J];Journal of Materials Engineering;2009-02
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3 LI Lan,LIU Tian-mo,LIU Yu,HE Shun,SUN Chao-yong(Chongqing University,Chongqing 400045,China);Recrystallization Kinetics of Cold Compressed AZ31 Magnesium Alloy[J];Materials for Mechanical Engineering;2008-11
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