横向弱磁场对镍基高温合金发散双晶竞争生长行为的影响

谢信亮, 周丽萍, 余建波, 玄伟东, 陈超越, 王江, 任忠鸣

Effect of Weak Transverse Magnetic Field on the Competitive Grain Growth of Ni-Based Superalloy with Divergent Bi-Crystals

XIE Xinliang, ZHOU Liping, YU Jianbo, XUAN Weidong, CHEN Chaoyue, WANG Jiang, REN Zhongming

图4 拉速为0.5和3 mm/min时发散双晶起始凝固阶段的纵截面组织

Fig.4 Longitudinal microstructures of the divergent bi-crystals at the initial solidification stage at withdrawal rates of 0.5 mm/min (a) and 3 mm/min (b)