Cui Chenshuo, Gao Cairu, Yang Xiongfei, Du Linxiu, Chen Yuxuan. Dynamic Precipitation Behavior of V-N Microalloyed Steel in Low Temperature Region[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(6): 37-43. doi: 10.7513/j.issn.1004-7638.2015.06.008
Citation:
Cui Chenshuo, Gao Cairu, Yang Xiongfei, Du Linxiu, Chen Yuxuan. Dynamic Precipitation Behavior of V-N Microalloyed Steel in Low Temperature Region[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(6): 37-43. doi: 10.7513/j.issn.1004-7638.2015.06.008
Cui Chenshuo, Gao Cairu, Yang Xiongfei, Du Linxiu, Chen Yuxuan. Dynamic Precipitation Behavior of V-N Microalloyed Steel in Low Temperature Region[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(6): 37-43. doi: 10.7513/j.issn.1004-7638.2015.06.008
Citation:
Cui Chenshuo, Gao Cairu, Yang Xiongfei, Du Linxiu, Chen Yuxuan. Dynamic Precipitation Behavior of V-N Microalloyed Steel in Low Temperature Region[J]. IRON STEEL VANADIUM TITANIUM, 2015, 36(6): 37-43. doi: 10.7513/j.issn.1004-7638.2015.06.008
The adverse effect of carbon on the toughness of steel can be reduced in low carbon steel.Through controlled rolling and cooling,high dislocation density of bainite organization was obtained in low carbon steel,and phase transformation strengthening can be achieved. However,single reinforcement method has its limitations. It is necessary to introduce precipitation strengthening on the basis of bainite phase transformation strengthening. The precipitation behavior of high-nitrogen vanadium micro-alloyed steel in bainite region was investigated by thermal simulation experiment and TEM. The specific values of precipitation volume fraction at different temperatures and time,and the enhancing contribution amount and the optimum precipitation temperature were obtained. It provides valuable reference for the development of V-N bainitic steel.
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