Abstract：The microstructure of proeutectoid ferrite transformed from austenite in Fe076%C alloy after holding at 807 ℃ in magnetic field(12 T).It was found that the amount and grain number of proeutectoid ferrite in the steel treated in magnetic field were more than that treated without magnetic field.It is assumed that the magnetic field decreased the driving force of proeutectoid ferrite nucleation. The proeutectoid ferrite grains elongated along the magnetic field direction, and the angles between the major axis of proeutectoid ferrite and magnetic field direction decreased with the increase of holding time.It is because austenite grains in the sample grew with the holding time, and the distance between the nuclei of proeutectoid ferrite became larger, leading to increase of diffusion distance of Fe atom from austenite to proeutectoid ferrite.
宫明龙;赵骧;宋建宇;王守晶;左良. 强磁场下保温时间对Fe0.76%C钢先共析 铁素体组织形貌的影响[J]. 钢铁, 2008, 43(11): 82-0.
GONG Minglong;ZHAO Xiang;SONG Jianyu;WANG Shoujing;ZUO Liang. Effect of Holding Time on Microstructure of Proeutectoid Ferrite in Fe0.76%C Alloy in High Magnetic Field. Iron and Steel, 2008, 43(11): 82-0.
2008, Vol. 43 
