Huan Zhao How does Hydrogen Behave in Aluminum Alloys?
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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.
LT Video Publication DOI: https://doi.org/10.21036/LTPUB101059
Hydrogen trapping and embrittlement in high-strength Al alloys
- Huan Zhao, Poulami Chakraborty, Dirk Ponge, Tilmann Hickel, Binhan Sun, Chun-Hung Wu, Baptiste Gault and Dierk Raabe
- Published in 2022