Fig. 2: The macroscopic morphology and microscopic defects of the welding seam. | Nature Communications

Fig. 2: The macroscopic morphology and microscopic defects of the welding seam.

From: High-strength and crack-free welding of 2024 aluminium alloy via Zr-core-Al-shell wire

Fig. 2: The macroscopic morphology and microscopic defects of the welding seam.

a The surface topography of the welding seam fabricated with ZCASW filler. b The longitudinal section morphology of the welding seam. c The cross-sectional morphology of the welding seam. d The morphology and height measurements of the weld surface (Color bar represents the height of the surface of welding seam). e–g 3D-reconstruction volumes of the defects inside the welding seam fabricated with the ER2319, the ER4043 and the ZCASW fillers, respectively (Color bar denotes pores diameter).

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