Zhang Jing, Xing Jun, Wang Kaizhong, Sun Wei, Zhang Weibin, Gong Yanhua. Influence of Cooling Speed on Transformation Behavior of V-N Microalloyed Steel[J]. IRON STEEL VANADIUM TITANIUM, 2013, 34(1): 69-72. doi: 10.7513/j.issn.1004-7638.2013.01.014
Citation:
Zhang Jing, Xing Jun, Wang Kaizhong, Sun Wei, Zhang Weibin, Gong Yanhua. Influence of Cooling Speed on Transformation Behavior of V-N Microalloyed Steel[J]. IRON STEEL VANADIUM TITANIUM, 2013, 34(1): 69-72. doi: 10.7513/j.issn.1004-7638.2013.01.014
Zhang Jing, Xing Jun, Wang Kaizhong, Sun Wei, Zhang Weibin, Gong Yanhua. Influence of Cooling Speed on Transformation Behavior of V-N Microalloyed Steel[J]. IRON STEEL VANADIUM TITANIUM, 2013, 34(1): 69-72. doi: 10.7513/j.issn.1004-7638.2013.01.014
Citation:
Zhang Jing, Xing Jun, Wang Kaizhong, Sun Wei, Zhang Weibin, Gong Yanhua. Influence of Cooling Speed on Transformation Behavior of V-N Microalloyed Steel[J]. IRON STEEL VANADIUM TITANIUM, 2013, 34(1): 69-72. doi: 10.7513/j.issn.1004-7638.2013.01.014
The microstructure transformation of V-N microalloyed steel during continuous cooling process was simulated with Gleeble-3500 thermomechanical simulator.The influence of cooling speed on microstructure and properties of the steel was analyzed.The results reveal that during continuous cooling of V-N microalloyed steel,precipitation of ferrite and transformation of pearlite,bainite and martensite take place.The cooling speed affects the grain size and distribution of ferrite.The critical cooling rate at the end of pearlite transformation is 7.0℃/s.The critical cooling rates at the start of bainite and martensite transformation are 3.0℃/s and 15.0℃/s respectively.
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