Accelerated materials design of alloys for LiGA parts with Young¿s modulus and creep resistance comparable to maraging steel

• Unité de recherche: INNOSUISSE
• Numéro de projet: 14477.1;5 PFIW-IW
• Titre du projet anglais: Accelerated materials design of alloys for LiGA parts with Young¿s modulus and creep resistance comparable to maraging steel

Description succincte (Allemand)

Accelerated materials design of alloys for LiGA parts with Young¿s modulus and creep resistance comparable to maraging steel

Description succincte (Anglais)

Accelerated materials design of alloys for LiGA parts with Young¿s modulus and creep resistance comparable to maraging steel

Résumé des résultats (Abstract) (Allemand)

The goal of this project is to fabricate micromechanical parts with high mechanical performance nickel alloys using UV-LIGA technology thereby extending the application of electrodeposited materials to structural applications (eg springs, etc). We propose to achieve this goal by utilizing an accelerated materials design strategy that covers the entire paradigm of processing-structure-property-performance relations. Ni based alloys having elastic modulus above 200 GPa and room temperature, creep strain rate less than 10e-11 per second at 10% yield stress will be designed that fulfill the mechanical integrity requirements for structural applications. This requires systematic studies of Ni based alloys to understand their fundamental deformation behavior as a function of composition and microstructure. It is expected that this project will pave the way for using UV-LIGA technique to fabricate structural parts of better mechanical performance than the actual nickel, which are otherwise manufactured by time consuming and less precise methods. This project will open up new markets for Mimotec, a Swiss company specializing in UV-LIGA technology and Breitling using the technology for watch parts fabrication.

Résumé des résultats (Abstract) (Anglais)

The goal of this project is to fabricate micromechanical parts with high mechanical performance nickel alloys using UV-LIGA technology thereby extending the application of electrodeposited materials to structural applications (eg springs, etc). We propose to achieve this goal by utilizing an accelerated materials design strategy that covers the entire paradigm of processing-structure-property-performance relations. Ni based alloys having elastic modulus above 200 GPa and room temperature, creep strain rate less than 10e-11 per second at 10% yield stress will be designed that fulfill the mechanical integrity requirements for structural applications. This requires systematic studies of Ni based alloys to understand their fundamental deformation behavior as a function of composition and microstructure. It is expected that this project will pave the way for using UV-LIGA technique to fabricate structural parts of better mechanical performance than the actual nickel, which are otherwise manufactured by time consuming and less precise methods. This project will open up new markets for Mimotec, a Swiss company specializing in UV-LIGA technology and Breitling using the technology for watch parts fabrication.