Evolution of Creep Damage of 316L produced by Laser Powder Bed Fusion

The damage mechanisms of metallic components produced by process laser powder bed fusion differ significantly from those typically observed in conventionally manufactured variants the same alloy. This is due to unique microstructures additively materials. work focusses on study evolution creep stainless steel 316L specimens fusion. X-ray computed tomography used unravel influence process-specific microstructure initial void distribution mechanisms. two tested at 600 °C and 650 analyzed before a test, after an interruption, fracture. results indicate that formation not connected distribution. Instead, accumulation grain boundaries resulting intergranular cracking observed. article protected copyright. All rights reserved.