Quantitative Research on Dissolving of Nb in High Nb Microalloyed Steels during Reheating

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...

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Bibliographic Details
Published in:Journal of iron and steel research, international international, 2014-06, Vol.21 (6), p.596-599
Main Authors: CAO, Ya-bin, XIAO, Fu-ren, QIAO, Gui-ying, LIAO, Bo
Format: Article
Language:English
Subjects:
Applied and Technical Physics
Dissolution
dissolving
Engineering
Evolution
Heating
high Nb microalloyed steel
High strength low alloy steels
Iron and steel industry
Machines
Manufacturing
Materials Engineering
Materials Science
Metallic Materials
modeling
Niobium
Physical Chemistry
Processes
quantitative research
Reheating
soluble Nb
Steels
加热参数
加热过程
可溶性
含Nb钢
溶解行为
铌微合金化钢
铌微合金钢
验证过程
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Summary: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 °C 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.
ISSN:1006-706X
2210-3988
DOI:10.1016/S1006-706X(14)60092-3