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Quantitative Research on Dissolving of Nb in High Nb Microalloyed Steels during Reheating |
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| Authors: | Ya-bin CAO Fu-ren XIAO Gui-ying QIAO Bo LIAO |
| Affiliation: | 1. School of Materials Science and Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, Hebei,China 2. Key Laboratory of Metastable Materials Science and Technology, College of Materials Science and Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China 3. School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China |
| Abstract: | The accurate prediction of soluble Nb content during reheating is helpful for the design of chemical composition and reheating parameters for Nb-containing steels. The dissolution behavior of Nb in high Nb microalloyed steels was investigated. The results show that Nb does not entirely dissolve for high Nb microalloyed steels containing Ti after holding at 1300 ℃ 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. |
| Keywords: | quantitative research high Nb microalloyed steel dissolving soluble Nb modeling |
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