Integrated Computational Materials, Process and Product Engineering – IC-MPPE 2022

There are a number of applications where materials are exposed to high temperatures and mechanical loads combined with specific environmental conditions. Applications are e.g. high temperature tooling which require materials combining oxidation resistance, high temperature strength and hardness as well as resistance against creep. The use of advanced materials in re-entry applications can be considered as another extreme use case. This presentation will provide an overview of material concepts which are developed for these demanding applications. Results from new material grades based on Ultra High Temperature Ceramics (UHTCs) as well as Refractory based High Entropy Alloys (HEAs) will be shown.
Powder metallurgical processing has been used to prepare full dense HEAs and UHTCs. Subsequent heat treatments were carried out in order to homogenize the microstructure. Microstructural analyses have been carried out in order to characterize the materials after processing. Oxidation testing was performed at temperatures up to 1.200°C. Additionally mechanical testing was performed and microstructural analysis was carried out to analyse the materials at different conditions.