Fig. 1: Schematics of different microstructure architectures with different phases and melt pool geometries.
From: Localised control of phase formation in a high-carbon low alloy steel by laser powder bed fusion
Keyhole melt pools appear in white and conduction melt pools in grey. a Continuous “melt pool bands” of alternating phases. b Vertically stacked melt pools (i.e., vertical “melt pool bands”).
