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Phase Diagram of MultiPrincipal Element Alloys

Project description

Efficient alloy design with advanced phase diagram modelling

Designing Multi-Principal Element Alloys (MPEA) requires precise phase diagrams, which dictate alloy properties. Traditionally, these diagrams are derived through costly experiments and semi-empirical calculations, limiting efficiency and innovation. The current methods are not only resource-intensive but also time-consuming, hindering the optimisation of these materials for engineering applications. An efficient approach is needed to accelerate alloy development and market readiness. Funded by the Marie Skłodowska-Curie Actions programme, the PD-MPEA project will combine first-principles calculations with the Calphad methodology. Specifically, it will determine the Gibbs free energies of alloys and create thermodynamic databases to predict phase diagrams. This strategy will enhance the performance of MPEAs like NiCrCo and NiCrCoFe, bringing them to market faster.

Objective

MultiPrincipal Element Alloys (MPEA) have emerged as a novel class of materials with broad potential applications in engineering fields due to their unprecedented properties. The phase diagrams, essential for designing these alloys, have been traditionally obtained through costly experiments and Calphad calculations based on semi-empirical functions. In this project, a novel methodology is presented to determine the phase diagrams of MPEA by combining the first principles calculations and the Calphad methodology. The strategy is based on two main pillars. Firstly, first principles calculations based on density functional theory in combination with the cluster expansion formalism and Monte Carlo simulations will be used to determine the Gibbs free energies of binaries and ternaries alloys including the contributions of configurational, vibrational and magnetic entropy. Secondly, this information will be used as input to create thermodynamic databases that will be used to predict the phase diagrams of MPEA following the Calphad methodology. This strategy will be demonstrated in NiCrCo and NiCrCoFe MPEAs. The approach developed in this proposal will provide a roadmap to calculate accurate phase diagrams of any MPEA, a fundamental step to optimize the performance of these alloys and accelerate their introduction into the market. The applicant will transfer her expertise and international connection in the field of thermodynamic modelling through Calphad to the host institute. She will work with researchers of the host institution to prompt new areas of research that can attract new funding and receive regular training on transferable skills. All these activities will enlarge her portfolio of skills and will ensure further development of her career.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2023-PF-01

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Coordinator

FUNDACION IMDEA MATERIALES
Net EU contribution
€ 186 152,32
Address
CALLE ERIC KANDEL 2 PARQUE CIENTIFICO Y TECNOLOGICO TECNOGETAFE
28906 Getafe
Spain
Region
Comunidad de Madrid Comunidad de Madrid Madrid
Activity type
Research Organisations
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Total cost
No data