Fig. 1: Optical micrographs of samples with different printing conditions.

Melt pool boundaries are marked with dashed blue lines. a L-PBF, V = 375 mm/s. The arrow shows the build direction (BD), b L-DED, V = 6.2 mm/s, c L-DED, V = 4.7 mm/s, d L-DED, V = 3.3 mm/s.