Fatigue and Surface Layer Optimization
In the "Fatigue and surface layer optimization" focus area, we offer exciting thesis topics focusing on the near-surface layer properties and fatigue behaviour of metallic materials. Here, the fatigue behavior at different temperatures is analyzed across all fatigue regimes. A particular focus is on the influence of different surface treatment processes, such as deep rolling or shot peening, on the resulting near-surface layer properties (microstructure, hardness and residual stress depth profiles) and the behavior under cyclic load. Another focus is on the analysis of fatigue crack growth properties. The investigations on the fatigue properties are also accompanied by fractographic analyses using scanning electron microscopy, providing information about crack initiation and damage mechanisms.
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Current research projects:
- Influence of microstructure and phase constitution on the deformation and failure behavior of high-manganese lightweight steels under cyclic loading
- 42CrMo4 processed by electron beam melting in a powder bed with subsequent surface layer treatment - from the process strategy to the material properties
- Influence of residual stresses on crack propagation behavior in microstructurally graded samples produced via laser-based additive manufacturing
- Evaluation of the influence of deep rolling on the mechanical and corrosive properties of the additively manufactured aluminum alloy AlSi10Mg
- Investigation of the straightening behavior of differently case-hardened notched shafts
- Deformation and damage behavior of additively manufactured medium manganese steels with in situ adjusted multiphase microstructure
- Analysis and evaluation of residual stresses on the damage process in intrinsically manufactured plastic-metal layered composites under static and cyclic load
- Aging under load in aluminum-copper alloys - correlations between precipitation characteristics and mechanical properties under monotonic and cyclic load