喷射成形<strong>AlSiCuMg</strong>合金的热变形组织演变及再结晶行为

喷射成形AlSiCuMg合金的热变形组织演变及再结晶行为

吴彩虹, 冯迪, 臧千昊, 范诗春, 张豪, 李胤樹

Microstructure Evolution and Recrystallization Behavior During Hot Deformation of Spray Formed AlSiCuMg Alloy

WU Caihong, FENG Di, ZANG Qianhao, FAN Shichun, ZHANG Hao, LEE Yunsoo

图3 Al25Si4Cu1Mg合金喷射态和不同热压缩条件下的SEM像

Fig.3 Low (a, c, e, g, i) and high (b, d, f, h, j) magnified SEM images of as-sprayed and as-deformed microstructures under typical conditions of Al25Si4Cu1Mg alloy (T_d—deformation temperature, $\dot{ε}$ —strain rate, DRX—dynamic recrystallization)
(a, b) as-sprayed state (c, d) T_d = 623 K,

\dot{ε}

= 5 s^-1 (e, f) T_d = 723 K,

\dot{ε}

= 5 s^-1 (g, h) T_d = 673 K,

\dot{ε}

= 0.05 s^-1 (i, j) T_d = 723 K,

\dot{ε}

= 0.001 s^-1