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13 峰值电流密度为8 × 10⁸ A/m²时凝固界面前沿中心轴线处， $Δ T$ 、 $S$ 、 $I$ 、 $N$ 、 $\bar{R}$ 沿 $z$ 轴变化曲线，及位置No.1~6处Al粒子的半径分布函数

Fig.13 Curves of $Δ T$ , $S$ , $I$ , $N$ , and $\bar{R}$ vs $z$ for Pb-0.15Al alloys solidified under the effect of ECPs (a, b), and the radius distribution function ( $f$ ) of the Al-rich particles at the positions of Nos.1~6 as marked in Figs.13a and b (c) with j_max = 8 × 10⁸ A/m² (Fig.13b is the local enlargement of Fig.13a)