About this Abstract |
Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
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Symposium
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2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
Presentation Title |
Effects of Surface Roughness, Process Parameters, and Heat Treatments on the Fatigue Properties of Laser Powder Bed Fusion of 316L Stainless Steel |
Author(s) |
Jorge Ramirez Lujan, Joy Gockel |
On-Site Speaker (Planned) |
Jorge Ramirez Lujan |
Abstract Scope |
This presentation will discuss how surface roughness, process parameters, and heat treatments affect the fatigue properties of 316L stainless steel produced by Laser Powder Bed Fusion (PBF-LB). The experimental methods and results will be highlighted, including microstructure analysis, surface roughness measurements, and fatigue testing. Previous studies have only considered total fatigue life, which is influenced by both surface roughness and microstructure, making the actual effect of surface roughness convoluted with microstructural influence. The presentation will cover fatigue results of specimens tested in both as-built and heat-treated microstructure conditions with as-printed and treated surfaces. The findings suggest that these factors significantly affect the fatigue properties of 316L stainless steel produced by PBF-LB. Understanding the separated influence of surface roughness and microstructure provides guidance toward processing development and qualification requirements for critical additive manufacturing components. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |