脉冲电流对冷坩埚定向凝固TiAl基合金微观组织和性能的影响

王国田, 龙泽堃, 吴彪, 王强, 丁宏升

Effects of Pulse Current on the Microstructure and Properties of Directionally Solidified TiAl Based Alloy in Cold Crucible

WANG Guotian, LONG Zekun, WU Biao, WANG Qiang, DING Hongsheng

表4 在不同脉冲电流作用下TiAl基合金的能谱分析结果

Table 4 EDS analysis of TiAl based alloy with different pulse current

Sample Analysis location Ti Al Cr Nb 0 mA/mm2 1 45.87 48.88 2.58 2.67 2 51.80 35.07 10.2 2.93 17.6 mA/mm2 1 48.37 46.16 2.71 2.76 2 49.69 37.16 10.27 2.88 35.3 mA/mm2 1 47.49 46.74 2.82 2.95 2 51.54 35.85 9.51 3.10 52.9 mA/mm2 1 46.21 47.71 2.92 3.16 2 52.26 35.25 9.47 3.02