1. School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China 2. National Engineering Research Center for Die and Mold CAD, School of Materials Science and Engineering,Shanghai Jiao Tong University, Shanghai 200030, China
Ductile Fracture Prediction of 316LN Stainless Steel in Hot Deformation Process
1. School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China 2. National Engineering Research Center for Die and Mold CAD, School of Materials Science and Engineering,Shanghai Jiao Tong University, Shanghai 200030, China
ժҪ A ductile fracture criterion of 316LN stainless steel, combined with the plastic deformation capacity of material and the stress state dependent damages, was proposed to predict ductile fracture during hot deformation. To the end, tensile tests at high temperatures were first performed to investigate the fracture behavior of 316LN stainless steel. The experimental results show the variation of the critical fracture strain as a function of temperature and strain rate. Second, the criterion was calibrated by using the upsetting tests and the corresponding numerical simulations. Finally, the proposed fracture criterion was validated by the designed tests and the corresponding finite element (FE) simulation. The results show that the criterion can successfully predict the onset of ductile fracture at elevated temperatures.
Abstract��A ductile fracture criterion of 316LN stainless steel, combined with the plastic deformation capacity of material and the stress state dependent damages, was proposed to predict ductile fracture during hot deformation. To the end, tensile tests at high temperatures were first performed to investigate the fracture behavior of 316LN stainless steel. The experimental results show the variation of the critical fracture strain as a function of temperature and strain rate. Second, the criterion was calibrated by using the upsetting tests and the corresponding numerical simulations. Finally, the proposed fracture criterion was validated by the designed tests and the corresponding finite element (FE) simulation. The results show that the criterion can successfully predict the onset of ductile fracture at elevated temperatures.
��������:National Key Basic Research and Development Program of China;National Key Basic Research and Development Program of China
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Cui Zhenshan
E-mail: cuiz@sjtu.edu.cn
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Jian-li HE,,Juan LIU,Zhen-shan CUI,Chao-zhong YANG,Fei CHEN. Ductile Fracture Prediction of 316LN Stainless Steel in Hot Deformation Process[J]. �й������ڿ���, 2014, 21(10): 923-930.
Jian-li HE,,Juan LIU,Zhen-shan CUI,Chao-zhong YANG,Fei CHEN. Ductile Fracture Prediction of 316LN Stainless Steel in Hot Deformation Process. Chinese Journal of Iron and Steel, 2014, 21(10): 923-930.
2014, Vol. 21 
