Influence of microstructural notches and stress gradients on the fatigue behaviour of additively manufactured HyPo-components (C01)

• Subject Area: Mechanical Properties of Metallic Materials and their Microstructural Origins ; Materials in Sintering Processes and Generative Manufacturing Processes
• Term: since 2024
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 511263698

HyPo-components underly spatially graded and multiaxial loads, which interact with process-induced microstructural notches, being crucial for the fatigue strength. Thus, in C01 the fatigue behaviour of additively manufactured shells made of 17-4 PH, which are filled with an AlSi10Mg foam and thus, are representative for a HyPo-component, is analysed. For this, in fatigue tests different load types are applied, which lead to different stress states and gradients, enabling the analysis of the interrelation between the loading applied and the microstructural notches present in HyPo-components.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 375: Multi-functional high performance components made from hybrid porous materials
• Major Instrumentation: Modernised controller
• Applicant Institution: Rheinland-Pfälzische Technische Universität Kaiserslautern-Landau
• Project Head: Professor Dr.-Ing. Tilmann Beck