A Review of the Development Status of Wire Arc Additive Manufacturing Technology

Figure 1

(a) Optical micrographs of selected samples in different horizontal planes: (A) schematic of the sample locations; (B) base metal extracted from a region outside of the heat affect zone; (C) M1; (D) M2; (E) M3; (F) M4. (b) The fracture appearance of the tensile specimens. (c) High-magnification fractographs of corresponding tensile samples: (A) S1; (B) S2; (C) S3; (D) S4; (E) S5; (F) S6; (G) S7; (H) S8.