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| Static Recrystallization Behavior of 316LN Austenitic Stainless Steel |
| JIN Miao,LU Bo,LIU Xin-gang,GUO Huan,JI Hai-peng,GUO Bao-feng |
| Key Laboratory of Advanced Forging and Stamping Technology and Science of Ministry of Education, Yanshan University, Qinhuangdao 066004, Hebei, China |
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Abstract The static recrystallization of 316LN austenitic stainless steel was studied by double-pass hot compression tests on a Gleeble-3500 thermomechanical simulator. The specimens were compressed at the deformation temperatures of 950, 1050, 1150 ��, strain rates of 0. 01, 0. 1, 1 s-1, strains of 0. 1, 0. 15, 0. 2, and intervals of 1-100 s. The results show that the volume fraction of static recrystallization of 316LN increases with the increase of deformation temperature, strain rate, strain and interval, which indicates that static recrystallization occurs easily under the conditions of higher deformation temperature, higher strain rate and larger strain. Deformation temperature has significant influence on static recrystallization of 316LN. The volume fraction of static recrystallization could easily reach 100% at higher deformation temperatures. By microstructure analysis, it can be concluded that the larger the volume fraction of static recrystallization, the more obvious the grain refinement. The static recrystallization activation energy of 317882 J/mol and the exponent n of 0. 46 were obtained. The static recrystallization kinetics was established. The predicted volume fraction of static recrystallization is in good agreement with the experimental results.
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Received: 05 September 2012
Published: 18 November 2013
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| Fund:National Natural Science Foundation of China;Technology Major Projects of High-end CNC Machine Tools and Basic Manufacturing Equipment |
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2013, Vol. 20 
