A5039066888- Microstructure and mechanical properties
- Aluminum Alloy Microstructure Properties
- Advanced Materials Characterization Techniques
- High Temperature Alloys and Creep
- Hydrogen embrittlement and corrosion behaviors in metals
- Surface and Thin Film Phenomena
- Advanced Electron Microscopy Techniques and Applications
- Metal and Thin Film Mechanics
- Aluminum Alloys Composites Properties
- Solidification and crystal growth phenomena
Max-Planck-Institut für Nachhaltige Materialien
2023-2025
Atom probe tomography requires needle-shaped specimens with a diameter typically below 100 nm, making them both very fragile and reactive, defects (notches at grain boundaries or precipitates) are known to affect the yield data quality. The use of conformal coating directly on sharpened specimen has been proposed increase reduce background. However, date, these coatings have applied ex situ mostly not uniform. Here, we report controlled focused-ion beam in deposition thin metal film...
Abstract Material sustainability requires energy‐efficient and rapid strengthening processes. In alloys, through diffusion‐driven precipitation is limited by the low vacancy concentration, with fewer than one per 100 billion lattice sites at room temperature in metals such as aluminum iron under thermodynamic equilibrium. Artificially increasing concentrations 1 to 7 orders of magnitude above equilibrium levels quenching, irradiation, or deformation can significantly accelerate material...
The rates of atomic clustering and precipitation hardening are closely related to the diffusivity solutes concentration vacancies during natural aging aluminum alloys. measurement at room temperature, especially in systems with an equilibrium vacancy concentration, is beneficial design process. However, this has long been challenging because extremely low diffusion temperature presence supersaturated vacancies. In work, we propose a method quantify based on kinetic evaluation spinodal...
The rates of atomic clustering and precipitation hardening are closely related to the diffusivity solutes concentration vacancies during natural aging aluminum alloys. Measuring at room temperature, especially in systems with an equilibrium vacancy concentration, benefits design process. However, this measurement has long been challenging due extremely low diffusion temperature presence supersaturated vacancies. In work, we propose a method quantify based on kinetic evaluation spinodal...