Figure 11

Fracture surface on the transverse plane of LPBF IN718: (a) as-printed; (b) HSA1; (c) HSA2; (d) HSA3; (e) HSA4; (f) HSA5. Fractures on melt-pool boundaries are highlighted by dotted lines in (a). Arrows in (a (1 and 2)) indicate the aligned intragranular dimples along the dendrites pattern in two different grains, and the coalescence of some microvoids along these dendrites, respectively.