纵向静磁场下单晶高温合金定向凝固籽晶回熔界面杂晶的形成与演化

苏震奇, 张丛江, 袁笑坦, 胡兴金, 芦可可, 任维丽, 丁彪, 郑天祥, 沈喆, 钟云波, 王晖, 王秋良

Formation and Evolution of Stray Grains on Remelted Interface in the Seed Crystal During the Directional Solidification of Single-Crystal Superalloys Assisted by Vertical Static Magnetic Field

SU Zhenqi, ZHANG Congjiang, YUAN Xiaotan, HU Xingjin, LU Keke, REN Weili, DING Biao, ZHENG Tianxiang, SHEN Zhe, ZHONG Yunbo, WANG Hui, WANG Qiuliang

图8 0.5 T磁场不同抽拉速率下合金在各位置处不同角度的晶界长度

Fig.8 Length distribution statistics of dendrite grain boundaries at different locations after 0.5 T magnetic field solidification at the pulling rates of 20 μm/s (a), 50 μm/s (b), and 100 μm/s (c) (For clarity, the grain boundary length data in the figures are represented by integers)