About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Thin Films and Coatings: Properties, Processing and Applications
|
Presentation Title |
High-throughput exploration of ultrastrong nanocrystalline CoCr alloys |
Author(s) |
Krzysztof Wieczerzak |
On-Site Speaker (Planned) |
Krzysztof Wieczerzak |
Abstract Scope |
Combinatorial synthesis methods, like co-deposition of thin-film materials libraries, offer cost-effective pathways for discovering new materials with unique properties. This approach enables the production of hundreds or thousands of alloys in a single process. By integrating combinatorial synthesis with high-throughput characterization, such as automated chemical and phase analysis, and high-speed nanoindentation, we can rapidly screen a wide range of compositions. In this study, we systematically examined the microstructure and mechanical properties of a CoCr material library synthesized via magnetron co-sputtering. We focused on the correlation between phase composition, texture, and mechanical properties to identify key factors influencing the strength of nanocrystalline (nc) CoCr alloys. Our findings revealed a compressive yield strength spectrum from 1.41 GPa in as-deposited CoCr36 to 3.64 GPa in annealed CoCr66, surpassing typical alloy properties from the same density class. These insights are applicable to optimizing high-throughput strategies for discovering materials with exceptional properties. |
Proceedings Inclusion? |
Planned: |
Keywords |
Copper / Nickel / Cobalt, Mechanical Properties, Thin Films and Interfaces |