Experimental Study on Influence of Electropulsing to Microstructural Evolution of Billet
This paper studies the influence to the microstructural evolution of low carbon steel and low carbon Nb steel through experiments in order to improve the microstructure of billet.The results of the study show that electropulsing has significant impact on the phase transformation from austenite to ferrite of low carbon steel and low carbon Nb steel,which improves nucleation rate of ferrite inside austenite grain.And it also shows that electropulsing promotes the nucleation and precipitation of NbCN in low carbon Nb steel and a large number of NbCN particles provide the nucleation sites for austenitic → ferritic phase transformation,which improves nucleation rate of ferrite inside austenite grain.The improvement of nucleation rate of ferrite inside austenite grain effectively restrains the formation of pro-eutectoid ferrite omentum at austenitic grain boundaries.
billet microstructural evolution electropulsing nucleation ferrite
Zheng-hai Zhu Wang Jian-jun Zhou Li
College of Metallurgy and Resources,Anhui University of Technology,MaanshanAnhui,China
国际会议
沈阳
英文
1409-1414
2012-09-26(万方平台首次上网日期,不代表论文的发表时间)