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3 不同成分过共晶Al-Si合金中初生Si偏析区厚度随脉冲电流密度变化曲线

Fig.3 Radial thicknesses of rich region of primary Si as a function of current density in hypereutectic Al-Si alloys