About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing: Length-Scale Phenomena in Mechanical Response
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Presentation Title |
Spall Strength Sensitivity to Process Parameters in Additively Manufactured 316L Stainless Steel |
Author(s) |
Benjamin Kyle Derby, Ankur Agrawal, David Jones, Reeju Pokharel, Daniel Martinez, Ramon Martinez, Dan Thoma, Saryu Fensin |
On-Site Speaker (Planned) |
Benjamin Kyle Derby |
Abstract Scope |
In this work, 316L SS was manufactured via selected laser melting and its microstructure altered through changing build parameters like laser power, speed and hatch spacing systematically. These samples were then subjected to spall recovery experiments to measure the spall strength and quantify the amount of damage as a function of microstructure. By mapping out the spall strength as a function of build parameters, this work demonstrated that indeed additive manufacturing can be used to tailor the spall strength of 316L SS. This work also determined the optimum build parameters to obtain the highest spall strength and the least amount of total damage. Microstructural characterization of the post-mortem samples revealed that larger grain size and a higher fraction of special boundaries drove this higher spall strength. This work aims to enhance microstructural engineering techniques for greater resistance to dynamic shock loading in structural materials. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Mechanical Properties, Characterization |