Abstract：The microstructure and property of vanadium micro-alloyed steel bar of different nitrogen content was studied by production test and existing great research results. The results show that the grain size of steel bar did not change with the increase of nitrogen content, but yield strength of steel bar rose, because nitrogen promoted precipitation of V(C,N) and refined size of precipitate effectively. Nitrogen greatly increased the effect of precipitation strengthening of vanadium.
张浩，潘世群. 氮对钒微合金化钢筋组织与性能的影响[J]. 中国冶金, 2014, 24(1): 11-13.
ZHANG Hao，PAN Shi-qun. Effect of Nitrogen on Microstructure and Property of Vanadium Micro-Alloyed Steel Bar. China Metallurgy, 2014, 24(1): 11-13.
2014, Vol. 24 
