1. Central Facility for Electron Microscopy RWTH Aachen University Ahornstraße 55 52074 Aachen Germany
2. Laboratory for Machine Tools and Production Engineering (WZL), RWTH Aachen University Aachen Germany
3. Fraunhofer-Gesellschaft Dresden Germany
4. Leibniz-Institut für Werkstofforientierte Technologien (IWT) Universität Bremen Bremen Germany
5. Chair of Corrosion and Corrosion Protection, Foundry Institute RWTH Aachen University Aachen Germany