铝合金熔滴复合电弧增材组织演化及外延生长特性

耿汝伟, 王林, 魏正英, 麻宁绪

Microstructure Evolution and Epitaxial Growth Characteristics of Droplet and Arc Deposition Additive Manufacturing for Aluminum Alloy

GENG Ruwei, WANG Lin, WEI Zhengying, MA Ninshu

图7 凝固过程中柱状晶向等轴晶转变(CET)过程的微观组织生长状况及对应时刻温度场分布演化过程

Fig.7 Columnar to equiaxed transition (CET) processes during solidification showing the microscopic microstructure growths (a-c) and corresponding temperature field distributions (d-f) at different time (ΔT—undercooling) (a, d) t = 5100Δt (b, e) t = 5700Δt (c, f) t = 6700Δt