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. 9.. SEM images of the vertical section of tensile-ruptured samples at 660 °C (a, a1, a2) and 760 °C (b, b1, b2) of substrate area. (a1) and (b1) show the broken MC carbide. (a2) and (b2) show the MC distributed along the fracture surface.