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| A SIMPLIFIED EXPRESSION OF m-n-δ RELATIONS FOR MATERIALS WITH PLASTICITY OR SUPERPLASTICITY |
| LIAN Jianshe Jilin Institute of Technology;Changchun;ZHANG Jiren Harbin Institute of Technology |
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Cite this article:
LIAN Jianshe Jilin Institute of Technology;Changchun;ZHANG Jiren Harbin Institute of Technology. A SIMPLIFIED EXPRESSION OF m-n-δ RELATIONS FOR MATERIALS WITH PLASTICITY OR SUPERPLASTICITY. Acta Metall Sin, 1985, 21(2): 118-123.
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Abstract Based on the Hart's differential constitutive equation,an attempt was made toderive an expression for the correlation among m-n-δ including the effects of boththe strain hardening,n,and strain-rate sensitivity,m,as follow:(?)and the simplified form:(?)It was found that this expression is in agreement with the current analysis of them-δ relations given by Ghosh and Ayres,or with the classical analysis by Con-sidère while n=0 or m=0 respectively.The calculated results of abovementionedexpression in contrast to experiments are coincidence.
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Received: 18 February 1985
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