脉冲电流作用下<strong>Pb-Al</strong>合金的液<strong>-</strong>固分相过程

脉冲电流作用下Pb-Al合金的液-固分相过程

李彦强, 赵九洲, 江鸿翔, 张丽丽, 何杰

Liquid-Solid Phase Separation Process of Pb-Al Alloy Under the Effect of Electric Current Pulses

LI Yanqiang, ZHAO Jiuzhou, JIANG Hongxiang, ZHANG Lili, HE Jie

图11 凝固组织中Al粒子的N及 ${\bar{R}}_{2 D}$ 随j_max的变化

Fig.11 Curves of $N_{I}$ , $N_{I I}$ , $N_{I} + N_{I I}$ , and ${\bar{R}}_{2 D}$ vs $j_{m a x}$ ( $N_{I}$ —number density of the Al-rich particles nucleated during the period of the current density j > 0; $N_{I I}$ —number density of the Al-rich particles nucleated during the period of j = 0; j_c1 and j_c2—critical values of j_max)