Multi-criteria optimization of the alloy composition for refractory alloys (T10*)

• Subject Area: Computer-Aided Design of Materials and Simulation of Materials Behaviour from Atomic to Microscopic Scale
• Term: since 2024
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 190389738

Conventional methods for developing new alloys require a high experimental effort. Especially with modern high-performance alloys based on refractory metals, this approach is time-consuming and cost-intensive due to the number of different alloying elements. In subproject C7, the software “PyMultOpt” with a focus on Co- and Ni-base alloys was developed in the second and third funding periods. This software is based on a completely numerical alloy development approach. The aim of this transfer project is to transfer the gained knowledge to optimize the composition of alloys based on refractory metals. This requires some completely new property models. Refractory metal alloys are exemplarily used in aviation and medical technology and the corresponding components are often manufactured using powder metallurgy. Therefore, the processability of the alloy via the powder metallurgical route should also be integrated into the optimization. The developed models are integrated into the PyMultOpt software and applied to one application each from medical technology and aviation.

• DFG Programme: CRC/Transregios (Transfer Project)
• Subproject of: TRR 103: From Atoms to Turbine Blades - A Scientific Approach for Developing the Next Generation of Single Crystal Superalloys
• Applicant Institution: Ruhr-Universität Bochum
• Business and Industry: GfE Metalle und Materialien GmbH
• Project Head: Dr.-Ing. Matthias Markl