Descrizione del progetto
Le microstrutture locali nelle leghe aiutano a progettare materiali su misura
Le leghe sono una miscela di due o più metalli o elementi metallici e non metallici. Ciò comporta un certo grado di eterogeneità nella loro struttura, che ne impedisce l’uso diffuso nella produzione additiva. Il progetto HeteroGenius4D, finanziato dal CER, svilupperà approcci di produzione additiva ad alta precisione e dal basso verso l’alto per personalizzare queste strutture eterogenee su varie scale di lunghezza. La capacità di sfruttare le eterogeneità strutturali e di creare materiali con proprietà che possono cambiare nel tempo aggiunge una quarta dimensione alla progettazione di componenti stampati in 3D, aprendo la strada alla stampa 4D.
Obiettivo
Superior high-performance materials and CO2-free production technologies are key enablers to solving Europe’s current and future societal challenges [1]. In this context, additive manufacturing (AM) as one of the disruptive, green production technologies of our time “is expected to become a key manufacturing technology in the sustainable society of the future” [2].
However, alloys specifically designed for AM are rarely available, which prohibits AM from reaching its full potential. In contrast to conventional alloys and processing, alloys processed by AM are highly microstructurally heterogeneous. It is the aim of HeteroGenius4D to use the process-inherent conditions of highly precise, bottom-up AM approach to tailor these heterogeneous structures (e.g. grains/phases and their boundaries and orientations, chemical gradients, etc.) locally and spatially on various length scales. This is the basis for the novel design concept of heterogeneities-guided alloy design for AM. The potential to print local microstructures and properties in AM adds a 4th dimension to the design of 3D printed components; i.e. enables 4D printing.
AM-processed metals with increasing degree of heterogeneity (from pure element over solid solutions with chemical gradients to multi-phase alloys with further phases and gradients) are studied systematically. The process-structure-properties-performance linkages are identified and quantified by combining high-throughput material synthesis (using extreme high-speed laser material deposition) and characterization with physics-based simulation tools, enabling a comprehensive integrated computational materials engineering (ICME) framework. The generated data serves as a basis for sophisticated data-driven (machine learning, ML) materials modelling and enables the establishment of an Experiments-ICME-ML optimal design approach for metal AM. Finally, the concept of heterogeneities-guided alloy design is generalised and transferred to graded components.
Campo scientifico
Parole chiave
Programma(i)
- HORIZON.1.1 - European Research Council (ERC) Main Programme
Argomento(i)
Meccanismo di finanziamento
HORIZON-ERC - HORIZON ERC GrantsIstituzione ospitante
10623 Berlin
Germania