Figure 4
Six micrographs show surface structures at 100 micrometres and 10 micrometres, with layered features, grain regions, and pores.

SEM images representing the melt pool boundaries for the LB-PBF samples at (a) 175, (b) 200 and (c) 250 W laser power. The corresponding angular selective backscattered (ASB) images related to samples printed at (d) 175, (e) 200 and (f) 250 W laser power

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