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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium 2021 Technical Division Student Poster Contest
Presentation Title Investigation of Mechanical Properties and Microstructure in Additively Manufactured Austenitic 316L Stainless Steel
Author(s) Hussam Ali, Nicholas Brubaker, Nicolene Van Rooyen, Indrajit Charit, Michael Maughan, Mark Jaster
On-Site Speaker (Planned) Hussam Ali
Abstract Scope Additive manufacturing (AM) has shown improvement in terms of affordability, sustainability, waste reduction and energy saving. In this study, laser-based direct energy deposition was used at Premier Technology Inc. to build austenitic 316L stainless steel parts with specific geometries for various applications. Wires of austenitic 316L stainless steel were utilized to build the parts under argon gas environment. Density was measured following Archimedean principle, microhardness was measured using Vickers microhardness testing, and strength and ductility properties were evaluated via tensile testing. Nanohardness and modulus mapping were performed using nanoindentation technique to obtain localized gradient in mechanical properties. Microstructure was characterized using optical and scanning/transmission electron microscopy to correlate the obtained mechanical properties to the observed microstructure. The obtained mechanical properties are found to be comparable to those of conventionally manufactured 316L. The research is supported by the Idaho Global Entrepreneurial Mission (IGEM) Program of the Idaho Department of Commerce.
Proceedings Inclusion? Undecided
Keywords Additive Manufacturing, Mechanical Properties, Characterization

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