Novel light alloy development based on the high entropy concept (NOVELA)

Purpose and goal

** Denna text är maskinöversatt ** NOVELA implemented the HEA concept to design new light alloys. The goal was> 20% improvement in specific strength compared to existing alloys (> 20% lower weight for a specified yield strength compared to existing Al alloys at room and elevated temperature). All objective achieved including more than 25% improvement in specific strength and ductility in some cases. Primary characterization was performed to understand the microstructure-property relationship in the new alloys.

Expected results and effects

** Denna text är maskinöversatt ** The results showed that the HEA concept was feasible to modify existing alloys for reducing density and/or improve specific strength (and ductility) at room and elevated temperatures (= high-performance light alloys). The project idea was further developed by a young researcher who was involved in the project (postdoc at JTH) together with industry partners for a full-scale project; the proposal was just submitted for funding which is under review (NOVELA II).

Planned approach and implementation

The results obtained on improved strength and ductility of the alloys showed potentially high deformability of the alloys, which is a very important step towards industrial applications. Generalizing the alloy´s design concept requires a deeper examination of the relationship between the microstructure and properties of the new alloys, which will be conducted in the following projects (NOVELA II). The goal is also to include other conventional alloy concepts and combine it with the modern HEA concept to benefit everyone.