| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Recycling and Sustainability for Emerging Technologies and Strategic Materials
|
| Presentation Title |
Ecodesign and Strategic Design of Alloys by Combinatorial Optimisation |
| Author(s) |
Franck Tancret, Madeleine Bignon, Edern Menou, Gérard Ramstein, Emmanuel Bertrand, Pedro E.J. Rivera-Diaz-Del-Castillo |
| On-Site Speaker (Planned) |
Franck Tancret |
| Abstract Scope |
Within a “green metallurgy” approach, we propose to use “sustainable metallurgy” criteria as of the design stage of new alloys. They allow to maximise the fraction of recycled materials entering the formulation of alloys and their recyclability, minimise the environmental impact of used raw materials (embodied energy, carbon footprint, water consumption…), and minimise the geopolitical risk of supply of these metals as well as the volatility of their price on international markets. Within the frame of a genetic algorithm multi-objective optimisation, these new criteria are added to microstructural criteria obtained through physical models of phase formation or transformations, and/or to thermomechanical properties predicted by data mining / machine learning. Examples are given in the domain of nickel-based superalloys and titanium alloys, with the design of materials presenting the best possible trade-offs between, depending on cases, mechanical behaviour, microstructural characteristics, corrosion resistance, cost and volatility, supply risk and environmental impact. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Computational Materials Science & Engineering, Environmental Effects, Recycling and Secondary Recovery |