钛合金三次真空自耗电弧熔炼过程中的宏观偏析传递行为

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Evolution of Macrosegregation During Three-Stage Vacuum Arc Remelting of Titanium Alloys

GUO Jie, HUANG Liqing, WU Jingyang, LI Junjie, WANG Jincheng, FAN Kai

图2 第一次熔炼过程中溶质场及流场演化

Fig.2 Solute distributions and liquid phase flow vectors in the ingot at different time during the first smelting process (Two solid lines represent the weld pool outlines, the same below. CV—mass fraction of vanadium element) (a) 1000 s (b) 4300 s (c) 6700 s (d) 8800 s (e) 9000 s (f) 10800 s (g) 12500 s (a1, b1) enlarged views of liquid phase flow vectors in Fig.2a (a1) and Fig.2b (b1), respectively