Influence of microstructure on hydrogen embrittlement in Cr-alloyed high-Mn steels (T04*)

• Subject Area: Thermodynamics and Kinetics as well as Properties of Phases and Microstructure of Materials
• Term: from 2015 to 2018
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 29898171

The aim of this transfer project is to analyze and improve the resistance of Cr-alloyed high Mn steels of the application partner SZMF to hydrogen embrittlement. The impact of the chemical composition on the formation of carbides (cementite and Cr carbides), their size and morphology will be investigated. In a second step it will be analyzed, how the interaction of these carbides with hydrogen occurs, which mechanisms of hydrogen embrittlement result from this interaction, and how they can be suppressed.

• DFG Programme: Collaborative Research Centres (Transfer Project)
• Subproject of: SFB 761: Steel - Ab Initio. Quantum Mechanics Guided Design of New Fe-based Materials
• Applicant Institution: Rheinisch-Westfälische Technische Hochschule Aachen
• Co-Applicant Institution: Max-Planck-Institut für Nachhaltige Materialien GmbH (MPI SusMat)
• Business and Industry: Salzgitter Mannesmann Forschung GmbH
• Project Heads: Dr. Tilmann Hickel; Professor Dr. Jörg Neugebauer