锻造-增材复合制造Ti-6Al-4V合金结合区显微组织及力学性能

马健凯, 李俊杰, 王志军, 王俞鉴, 王锦程

Bonding Zone Microstructure and Mechanical Properties of Forging-Additive Hybrid Manufactured Ti-6Al-4V Alloy

MA Jiankai, LI Junjie, WANG Zhijun, WANG Yujian, WANG Jincheng

图4 不同线能量密度下锻造-增材复合制造Ti-6Al-4V合金结合区的显微组织 (a1, a2, a3) 100 J/mm (b1, b2, b3) 133 J/mm (c1, c2, c3) 200 J/mm

Fig.4 Microstructures of the bonding zones in forging-additive hybrid manufactured Ti-6Al-4V alloy corresponding to the square areas in Figs.2a (a), 2b (b), and 2c (c), and locally magnified images of bottom-BZ (a1, b1, c1), mid-BZ (a2, b2, c2), and up-BZ (a3, b3, c3) (The dashed lines in Figs.4a, b, and c show the interfaces between the up-BZ and LDZ. The dotted lines in Figs.4a3, b3, and c3 show the morphologies of equiaxed β grains formed during heating)