Title: Hot deformation behavior of high silicon aluminum alloy as standard sample
Abstract: The flow stress behavior of high silicon aluminum alloy standard sample was investigated in the temperature range of 350-500 ℃ and strain rate of 0.01-1 s-1.The results show that the dynamic recovery and dynamic recrystallization occur obviously during hot compression of high silicon aluminum alloy.The flow stress increases with increasing strain rates and decreases with increasing temperature.The strain hardening coefficient n and deformation activation energy Q are evaluated by linear regression analysis.And the flow stress constitutive equation of high silicon aluminum alloy during hot compression is obtained.The influence of the processing parameters(deformation temperaturet,strain ratee) on grain sizes was studied.The optimal processing parameters,t=400 ℃,e =0.1 s-1 were determined.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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