The accurate prediction of soluble Nb content during reheating is helpful for the design of chemical compo sition and reheating parameters for Nb-containing steels. The dissolution behavior of Nb in high Nb mieroailoy...The accurate prediction of soluble Nb content during reheating is helpful for the design of chemical compo sition and reheating parameters for Nb-containing steels. The dissolution behavior of Nb in high Nb mieroailoyed steels was investigated. The results show that Nh does not entirely dissolve for high Nb microalloyed steels containing Ti after holding at 1 300 ℃ for 3 h. The soluble Nb content increases with the decrease of C content and/or the increase of Nb content in steels. Moreover, an expression has been established to describe the amount evolution of soluble Nb in high Nb microalloyed steels during reheating and the validity of this expression has also been verified by experiment.展开更多
基金Sponsored by National Natural Science Foundation of China(51171162)Natural Science Foundation of Hebei Province of China(E2009000443,E2011203169)
文摘The accurate prediction of soluble Nb content during reheating is helpful for the design of chemical compo sition and reheating parameters for Nb-containing steels. The dissolution behavior of Nb in high Nb mieroailoyed steels was investigated. The results show that Nh does not entirely dissolve for high Nb microalloyed steels containing Ti after holding at 1 300 ℃ for 3 h. The soluble Nb content increases with the decrease of C content and/or the increase of Nb content in steels. Moreover, an expression has been established to describe the amount evolution of soluble Nb in high Nb microalloyed steels during reheating and the validity of this expression has also been verified by experiment.
