|About this Abstract
|2023 TMS Annual Meeting & Exhibition
|Quantifying Microstructure Heterogeneity for Qualification of Additively Manufactured Materials
|Microstructure and Mechanical Property Variations in Commercially Produced Laser Powder Bed Fusion 316L Stainless Steel
|Jorge Ramirez Lujan, Simon Richardsen, Charles Smith, Grant Zheng, Garrison Hommer, Jonah Klemm-Toole, Steve Midson, Xiaoli Zhang, Amy Clarke, Craig Brice, Joy Gockel
|On-Site Speaker (Planned)
The austenitic stainless steel, 316L, is one of the most used steels in laser powder bed fusion (PBF-LB) additive manufacturing (AM). Accordingly, depending on where a PBF-LB part is made, there is a wide variety of equipment manufacturers and processing parameters used. As a result, a range of microstructures and mechanical properties are expected. In this presentation, variations and similarities in mechanical properties and microstructures from PBF-LB 316L builds are shown from four different commercial AM providers and different build geometries. By analyzing the compositions and processing parameters used in the builds, the mechanical behavior observed, and the requirements needed to transfer learned relationships from one machine to another are discussed. An understanding of the similarities and differences in the processing-structure-properties relationships from machine to machine will allow for a simplified qualification approach when expanding to suppliers using different PBF-LB machine technology.
|Additive Manufacturing, Mechanical Properties, Characterization