Fig. 4
From: In situ X-ray imaging of defect and molten pool dynamics in laser additive manufacturing
Tracking the movement of spatter and pore during LAM of the two melt tracks (MT1 and MT2). a An example of a spatter trajectory overlaid on a radiograph (see the spatter tracking video in Supplementary Movie 6). b An overlay image contains all the spatter trajectories. c A histogram of the average spatter velocities. d An example of a pore flow trajectory overlays on a radiograph. The centrifugal Marangoni-driven flow forces the pore to flow in a clockwise direction (see the pore tracking video in Supplementary Movie 7). e A histogram of the average pore flow velocities
