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| Static Recrystallization Behavior of Deformed Austenite in X120 Pipeline Steel |
| GAO Jian-zhong1,GUO Bin1,2,XU Jin-qiao2,GUO Ai-min1,2,WANG Qing-feng1 |
1. State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, Hebei, China
2. Research and Development Center of WISCO, Wuhan 430080, Hubei, China |
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Abstract Static recrystallization behavior of microlloyed pipeline steel with Nb was investigated by two-pass uniaxial hot compression tests performed on Gleeble-3500 thermo-mechanical simulator. The static recrystallization fraction under different deformed temperatures was estimated by means of compensating. The results show that the effect of deformation temperature and inter-pass time on static recrystallization behavior is significant. The activation energy of static recrystallization of the X120 pipeline steel is 401.56 kJ/mol. The precipitation-time-temperature curve of the X120 pipeline steel is also obtained.
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Received: 12 May 2011
Published: 05 September 2012
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2012, Vol. 47 
