Hydrogen Embrittlement in High-Strength Steels and Alloys
This community investigates how hydrogen atoms degrade the mechanical integrity of structural metals, specifically focusing on preventing cracking and failure in high-strength steels and aluminum alloys.
The research centers on the interaction between hydrogen diffusion and specific microstructural features, such as grain boundaries, precipitates, and phase transformations. A dominant focus is on stainless steels, high-strength low-alloy (HSLA) steels, and medium-manganese steels, where the goal is to enhance embrittlement resistance without sacrificing strength or toughness. Methods include hydrogen charging, permeation testing, and the development of barrier coatings or surface modifications to trap hydrogen harmlessly. The work also addresses specific applications like pipeline integrity, where hydrogen blending in natural gas or environmental exposure poses a risk to carbon and alloy steels. Recent efforts explore computational modeling of hydrogen interactions with dislocations and the use of machine learning to predict embrittlement origins at the atomic scale.
The largest share of this community's output is found in hydrogen research, accounting for 1.8% of all tracked hydrogen studies, and iron research, representing 1.2% of iron studies. The community includes 10,305 papers related to hydrogen and 4,673 papers related to iron.
The community comprises 27,196 papers, publishing primarily in the International Journal of Hydrogen Energy, Tetsu-to-Hagane, and ISIJ International.
Recent work continues to focus on mitigating hydrogen damage in pipeline steels and stainless alloys through surface modification and barrier coatings, while also applying machine learning interatomic potentials to understand embrittlement mechanisms at grain boundaries in alpha-iron.