Development of High-Entropy Coatings
Presenterad under konferensen "Fler idéer om metaller" 4-5 mars 2015.
Purpose and Objective
The project aims to develop better, cheaper and safer metallic coating materials using the novel concept of high-entropy alloying. The goal is to develop new coating materials with optimized material performance in terms of hardness, wear resistance and corrosion resistance, while lowering materials cost and removing environmentally unfriendly elements. The methodology developed here is general and can be transferred to develop other structural materials beyond coatings.
Impact and Results
Conventional coating materials suffer from the conflict between high hardness/wear resistance and corrosion resistance, and they normally contain expensive and environmentally harmful elements like Ni and Co. A breakthrough to develop novel coating materials is now promising using the new high-entropy alloying concept, where multiple-principal-element alloys are designed to replace conventional alloys that are based on one or two principal elements. The project contributes to priority areas ”Utveckla marknadserbjudanden”, ”Öka materialutvecklingstakten”, ”Minska miljöpåverkan”, and ”Öka kompetens och attraktivitet”.
Project Design and Implementation
The project is divided into four WPs. WP1 and WP2 will focus on materials selection, based on previous work from the pre-study project. WP3 will focus on coating fabrication and performance evaluation. In WP4, the alloy design from the thermodynamics perspective will be addressed. Chalmers will be involved in all four WPs, and Höganäs will work on WPs 1,2 and 3, and Swerea KIMAB will focus on WP4. New academic and industrial partners will be added if new needs for research collaboration are raised.
