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 |
Additive Manufacturing of a Strong, Deformable Al Alloy with Nanoprecipitates |
Author(s) |
Anyu Shang, Benjamin Stegman, Kenyi Choy, Pascal Bellon, Haiyan Wang, Xinghang Zhang |
On-Site Speaker (Planned) |
Anyu Shang |
Abstract Scope |
Aluminum (Al) alloys have broad industrial applications. However, most commercial high-strength Al alloys are not suitable for additive manufacturing due to their high susceptibility to solidification cracking. In this work, a custom Al alloy was fabricated by selective laser melting. Nanoprecipitates form in the as-printed Al alloy. Macroscale compression tests reveal a combination of high strength, over 700 MPa, and prominent plastic deformability. Micropillar compression tests display significant back stress in the alloys. Post-deformation TEM analyses reveal deformation mechanisms in the high-strength Al alloys. This study shows that proper introduction of heterogeneous microstructures and nanoscale precipitates may lead to the design of strong, deformable Al alloys via additive manufacturing. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Characterization, Mechanical Properties |