MultiScaleDesign · Characterization of Multiscale Interfaces of Hierarchical High-Entropy Alloys by Advanced Microscopy and Microanalysis
Horizon 2020 — Marie Skłodowska-Curie Actions
- Duration
- 2022-08-01 → 2024-07-31
- EU contribution
- €184,820
- Participants
- 2
- Scheme
- MSCA-IF
Lines connect the coordinator with its partners.
Results in brief
Characterization of Multiscale Interfaces of Hierarchical High-Entropy Alloys by Advanced Microscopy and Microanalysis
This project aims to develop methods for studying a new class of technologically important hierarchical materials with multiscale interfaces synthesized by advanced bottom-up approaches. The research focuses on understanding how the microstructure of structurally and compositionally complex metallic/alloy materials relates to their properties to design novel advanced materials that balance strength and toughness and thus overcome limitations of traditional materials. The focus lies on the correlation of the grain size/grain orientation distribution and composition, twin density variations, multilayer architecture and structure and composition of the primary phase in multi-principle element alloys with their mechanical properties and thermal stability. The new material design concepts rely on advanced methods for characterization of materials microstructure and mechanical properties at multiple length scales, including multiscale multimodal transmission electron microscopy and atomistic characterization by atom probe microscopy. Their development together with the host institution (The University of Sydney) and integration into the research at the beneficiary (Montanuniversität Leoben) will contribute to the fundamental understanding of the process-structure-property relations of hierarchical materials and identifying the role of multiscale interfaces on their mechanical properties and thermal stability. As microstructural design has a great application potential for various materials, it is relevant for a majority of applications in which reliability, in terms of structural and mechanical stability, is a key property. Besides safety-critical applications, the knowledge gained in this project can be applied also in tooling applications, in microelectronics, sensor and display technology and materials for energy storage and conversion. The general design rules established in the course of the project are expected to have interdisciplinary overlap, contributing to the improvement of quality of a variety of products, and thus attracting attention of researchers across academia and industry.
Data: CORDIS, © European Union
Project objective
The aim of the fellowship is to establish methodology for characterisation of a new class of technologically important hierarchical materials with functional multiscale interfaces designed to control their mechanical and thermal stability. The research will rely on a comprehensive study of novel biomimetic multielement high-entropy alloys produced with unique microstructures by bottom-up approaches, allowing for (i) understanding the process-structure-property relations of advanced hierarchical alloys for challenging safety-critical applications, (ii) identifying the role of multiscale interfaces in structurally complex materials on their mechanical and thermal stability, which will subsequently allow for (iii) designing new perspective materials possibly solving the strength-toughness trade-off dilemma limiting the replacement of traditional materials by more perspective materials. The fellowship is also aiming to fill the gap in the knowledge in the beneficiary on in-depth structural characterization of hierarchical materials with multiscale interfaces by advanced characterisation techniques. This will be achieved by (i) in-depth hands-on training on electron microscopy and atom probe tomography in the host institution focused on characterization of structural features spanning multiple length-scales, (ii) transfer of the knowledge to the beneficiary, (iii) establishing an internationally recognized research group in the beneficiary with a focus on the synthesis, in-depth structural and mechanical characterization of novel hierarchical biomimetic mechanically and thermally stable materials for safety-critical applications and (iv) strengthening the collaboration with the host institution. The scientific work is expected to have a strong impact on a variety of multidiscipline applications, in which microstructural design plays an important role in controlling the material properties, especially during research following the incoming phase of the fellowship.
Original text from CORDIS.
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Data: CORDIS, © European Union