Study on Carbonitride Precipitating Process in Nb-V Micro-Alloyed Steel
|Periodical||Materials Science Forum (Volumes 654 - 656)|
|Edited by||Jian-Feng Nie and Allan Morton|
|Citation||Wen Qing Liu et al., 2010, Materials Science Forum, 654-656, 114|
|Online since||June, 2010|
|Authors||Wen Qing Liu, Xiao Yong Zhu, Xiao Jiao Wang, Xiang Yuan Xiong|
|Keywords||Carbonitride, Micro-Alloyed Steel, Precipitation, Three-Dimensional Atom Probe (3DAP)|
The carbonitrides precipitates in Nb-V micro-alloyed steels were investigated by 3DAP. Much difference in the composition and size of the precipitates were observed. It is proposed that the carbon atoms segregated first at the dislocation or vacancy, and the vanadium and niobium atoms diffused to these sites to form the V-C, V-Nb-C clusters, leading to the formation of (Nb,V)C complex phase. The composition becomes inhomogeneity as the precipitates grow up.