交流电脉冲对过共晶Al-Si合金中初生Si相偏析的作用机制
张利民, 李宁, 朱龙飞, 殷鹏飞, 王建元, 吴宏景

Macrosegregation Mechanism of Primary Silicon Phase in Cast Hypereutectic Al-Si Alloys Under Alternating Electropulsing
ZHANG Limin, LI Ning, ZHU Longfei, YIN Pengfei, WANG Jianyuan, WU Hongjing
图2 230 A/cm2电脉冲下过共晶Al-Si合金试样中轴心与边缘位置处初生相数目比值及电脉冲持续时间随凝固温度区间的变化
Fig.2 Number ratios of primary Si phase in the center of specimen (Nc) to that in the edge of specimen (Ne) and duration time of electropulsing as a function of solidification temperature range under electropulsing of 230 A/cm2