定向凝固糊状区枝晶粗化和二次臂迁移的实验和模拟
方辉1,薛桦1,汤倩玉1,张庆宇1,潘诗琰2,朱鸣芳1(
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Dendrite Coarsening and Secondary Arm Migration in the Mushy Zone During Directional Solidification:
Hui FANG1,Hua XUE1,Qianyu TANG1,Qingyu ZHANG1,Shiyan PAN2,Mingfang ZHU1()
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图2. SCN-2.0%ACE合金在温度梯度G=9 ℃/mm、抽拉速率Vp=0条件下保温不同时间时二次枝晶臂迁移的原位实验观察照片
Fig.2. In situ experimental observation regarding the secondary dendrite arm migration of a SCN-2.0%ACE (mass fraction) alloy at G=9 ℃/mm and Vp=0 for the holding time of 0 s (a), 36 s (b) and 60 s (c) (G—temperature gradient, Vp—withdrawal rate, T1—temperature of left side)
