Nb EFFECTS ON THE DYNAMIC RECRYSTALLIZATION BEHAVIOR AND MECHANICAL PROPERTIES OF V/Ti ALLOYED NON-QUENCHING AND TEMPERING STEEL
The dynamic recrystallization behaviors of the microalloyed non-quenching and tempering steels of 38MnVS and C38N2 were studied by the simulation of hot deformation in the Gleeble3800.The stress versus strain curves of both steels were measured at different deformation temperature and deformation strain rate.The relationship among deformation temperature,deformation strain rate and the peak stress was analysis to calculate the activation energy of the hot deformation.The dynamic recrystallization behaviors and the grain size measurements were identified based on the microstructural examination.The hot processing map and the hot deformation instability map were drawn based on the relationship among deformation strain rate,deformation temperature and the peak stress to optimize the hot deformation parameters.Both 38MnVS and C38N2 was processed by the controlled forging and controlling cooling process(CFCC-process),it was pointed out that Nb plays an important role in the dynamic recrystallization and the processing of the non-quenching and tempering steels.
Non-quenched and tempered steels Dynamic recrystallization process Hot processing map CFCC-process High strengthening and toughening
TAN Li Zhou Zhan LIU Pan Wen Yuan-Shen BAO Yao-Zong
Jiangsu Suzhou Steel Group Co.,Ltd,Jiangsu 215151 Great Wall Motor Company Limited,Baoding 071000,Hebei,China Central Iron & Steel Research Institute,Beijing 100081
国内会议
杭州
英文
1003-1010
2015-11-11（万方平台首次上网日期，不代表论文的发表时间）