Fig. 1: Programmable thermal stability in stainless steel 316L (SS316L) by laser powder bed fusion (LPBF).
From: Additive manufacturing of alloys with programmable microstructure and properties
a Schematic cross-section view of a metal sample produced by LPBF, which shows the melt pool and the resulting heat affected zone (HAZ). b, c Electron backscatter diffraction maps showing crystal orientation (IPF, inverse pole figure) along the build direction (BD), kernel average misorientation (KAM), and grain boundary (GB) character distribution in heat-treated H-SS316L and L-SS316L, respectively. HAGB, LAGB, and TB represent high-angle grain boundaries, low-angle grain boundaries, and twin boundaries, respectively. SD represents scanning direction. d, e KAM maps illustrating the site-specific control over recrystallization both within the build plane and along the BD, respectively. The binary code in (d) stands for “AM”.
