|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Additive Manufacturing of Metals: Establishing Location-Specific Processing-Microstructure-Property Relationships
||High Strain Rate Mechanical Behavior of Stainless Steel 316L Processed by Selective Laser Melting
||Travis Kneen, Christopher Barrett, Brett Conner, Guha Manogharan
|On-Site Speaker (Planned)
This presentation is a study on stainless steel 316L AM parts processed in a Selective Laser Melting (SLM) machine under two different sets of process parameters in multiple build orientations. Microstructural characterization, dynamic, impact, and quasi-static strain rate mechanical tests were conducted to analyze the as-fabricated AM mechanical properties when compared to wrought 316L. It was found that laser scanning speed and point difference were critical parameters that affected the microstructure and mechanical properties. It was observed that during quasi-static loading that specimens from both sets of AM process parameters had a higher yield strength when compared to wrought specimens. At strain rates of 10^3/s, both SLM produced 316L and wrought 316L showed strain rate sensitivity (hardening), but this effect was more pronounced in the wrought material. The influence of build orientation was also found to impact the overall results for both sets of SLM process parameters.
||Planned: Supplemental Proceedings volume