Microstructure and tensile properties of DD32 single crystal Ni-base superalloy repaired by laser metal forming

Shiwei Ci^a^,^b, Jingjing Liang^a^,^c^,^d^,^*(

), Jinguo Li^a^,^d, Yizhou Zhou^a^,^*(

), Xiaofeng Sun^a

Fig. 2.. Microstructures of the repaired DD32 single superalloy (a), dendrites at the deposited area (b), at the joint area (c) and at the substrate area (d). (b), (c) and (d) are taken from the area of box ①, ② and ③ in (a). Green thin lines in (a) represent the pool line. The area between green dotted lines in (a) draw HAZ. The green dotted line in (c) represents the pool line.