About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
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Mechanical Response of Materials Investigated through Novel In-situ Experiments and Modeling
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Presentation Title |
Effect of Defect Spatial Distribution on Ductile Failure in Additively Manufactured 316L |
Author(s) |
David J. Rowenhorst, Aeriel Leonard |
On-Site Speaker (Planned) |
David J. Rowenhorst |
Abstract Scope |
Additive manufacturing (AM) has presented a new processing route for structural alloys, but also localized variations in processing conditions can lead to unique, and nonhomogenous defect populations. In this study we examine the effect that the localized part size and processing can have on the mechanical properties of AM materials, especially the influence on the ductile failure. Using using high energy X-rays at the Cornell High Energy Synchrotron Source (CHESS), the evolution of defect pore morphologies in AM 316L samples are evaluated in-situ during plastic loading. Additionally we examine the evolution of the crystallographic texture of these samples and how the the build texture influences the anisotropies in the yield strength. These results are complimented by further ex-situ 3D examinations that reconstruct the grain structure in these materials, showing further inhomogeneities in the defect and grain structures. |
Proceedings Inclusion? |
Planned: |