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()
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()

图5. SCN-2.0%ACE合金在G=9 ℃/mm条件下保温时,相邻枝晶臂合并的原位实验观察照片

Fig.5. In situ experimental observation regarding the dendrite arm coalescence of a SCN-2.0%ACE alloy at G=9 ℃/mm for the holding time of 6 s (a) and 30 s (b) (Boxes 1 and 2: dendrite arm coalescence through joining dendrite arm tips, box 3: advancement of interdendritic grooves)