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Light, strong and abundant, aluminum and its alloys are widely used in constructions, consumer electronics, and for vehicles including cars, ships, and aerospace. In this video, HUAN ZHAO explores a phenomenon which results in the weakening of these materials, hydrogen embrittlement. Employing cryogenic-transfer atom probe tomography, Zhao is able to provide a three dimensional analysis of how hydrogen is located within the aluminum alloys’ microstructure. Identifying grain boundaries as a key site for hydrogen embrittlement, the research highlights possible strategies to both better understand and counteract material’s failure.
Novel alloys for automotive lightweight design and airplane turbines, materials for sustainable energy conversion and storage, and the development of big data and machine learning methods – these are just a few examples of the research areas that are being investigated by the scientists of the Max-Planck-Institut für Eisenforschung. The team of engineers, material scientists, physicists, and chemists develops tailored materials and methods for mobility, energy, infrastructure, and information. To this end, the researchers study complex materials with atomic precision under real environmental conditions.Show more
Hydrogen trapping and embrittlement in high-strength Al alloys
NaturePublished in 2022