About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing: Materials Design and Alloy Development VI – Closed-Loop Alloy Design
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Presentation Title |
A Closed-loop Computational Approach for the Design and Development of High-strength Al Alloys Tailored for Laser-based Powder Bed Fusion |
Author(s) |
Giuseppe Del Guercio, Federico Bosio, Chinmay Phutela, Nesma Aboulkhair |
On-Site Speaker (Planned) |
Giuseppe Del Guercio |
Abstract Scope |
Laser-based Powder Bed Fusion (PBF-LB) opens new opportunities for the design of high-strength aluminium alloys (HSAA) characterised by unique microstructures and properties. However, their development is hampered by the formation of hot cracks and delamination limiting their performances. Despite, in the last few years, many approaches have been proposed to overcome HSAA’s hot cracking and delamination phenomena, these attempts did not consider the effects of PBF-LB regimes and were often paired with extensive experimental campaigns. In this work, FEA is coupled with the CALPHAD approach to compute the thermal history experienced by bespoke composition during processing. The simulated temperature fields inform a closed-loop computational design methodology to isolate at the same time compositional windows and crack-free PBF-LB regimes. The presented methodology does not require the use of powders and/or intermediate experiments, resulting in a robust and fast alloy development process of obvious impact for both the research and industrial communities. |
Proceedings Inclusion? |
Planned: |
Keywords |
Aluminum, Computational Materials Science & Engineering, Additive Manufacturing |