About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing: Materials Design and Alloy Development V – Design Fundamentals
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Presentation Title |
Finding “Printing” Alloys: A New Category of Aluminum(-Cerium) Alloys in an Untapped Composition Space |
Author(s) |
Alfred Amon, Seungjin Nam, Emily Moore, Hunter B Henderson, Orlando Rios, Ryan Ott, Scott K. McCall |
On-Site Speaker (Planned) |
Alfred Amon |
Abstract Scope |
Aluminum alloys experience aggressive development for additive manufacturing. The vast amount of work has been dedicated to the adaptation of traditional heat-treatable, near-eutectic Al-Si casting alloys such as AlSi12, AlSi10Mg, AlSi9Cu3, A6061 or A356. Rapid solidification during the AM process results in fine-grained microstructures and warps the solidification pathways in a drastic and unpredictable manner. While casting alloys outperform compositions for wrought processing, they are not optimal, raising the need for a new category of “printing” alloys. We have investigated the suitability of as-cast Al-Ce-Mg alloys with high Fe and Ni content for SLM processing. Combination of target prefabrication by DED and consequent laser surface traces enable a high-throughput composition screening of alloys with unconventionally high transition metal content. A microstructure-hardness mapping enabled pre-selection of composition and processing parameters. While discovering new alloys with high hardness, this study paves the way for unconventional alloy design approaches in the AM space. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Aluminum, Mechanical Properties |