| Abstract Scope |
Understanding hydrogen embrittlement is essential for developing alloys with resistance to environmental degradation. This lecture presents the integration of advanced experimental and theoretical methods to reveal the mechanisms of hydrogen-induced failure in both high-strength steels and aluminum alloys. Central is the employment of corrleative atom probe tomography (APT) and electron microscopy, conducted with highest preparation rigor, use of deuterium as isotopic tracer, and a well-controlled cryogenic sample preparation and transfer protocol, enabling precise localization of hydrogen and its isotopes in complex alloy microstructures.
References
Zhao, H., Chakraborty, P., Ponge, D. et al. Hydrogen trapping and embrittlement in high-strength Al alloys. Nature 602, p 437 (2022)
Sun, B., Lu, W., Gault, B. et al. Chemical heterogeneity enhances hydrogen resistance in high-strength steels. Nat. Mater. 20, p 1629 (2021)
Huang, L., Chen, D., Xie, D. et al. Quantitative tests revealing hydrogen-enhanced dislocation motion in α-iron. Nat. Mater. 22, p 710 (2023)
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