基于熔池原位冶金的电弧增材制造Al-Cu-Li合金显微组织与硬度

黎康杰, 孙泽羽, 何蓓, 田象军

Microstructure and Hardness of Al-Cu-Li Alloy Fabricated by Arc Additive Manufacturing Based on In Situ Metallurgy of Molten Pool

LI Kangjie, SUN Zeyu, HE Bei, TIAN Xiangjun

图2 沉积态Al-Cu-Li合金试样沿沉积方向顶部、中部及底部的组织形貌及晶粒异质形核示意图

Fig.2 OM images of the as-built Al-Cu-Li alloy sample at top (a), middle (b), and bottom (c) positions along the deposited direction, respectively; and schematic of heterogeneous nucleation of grains (d)