Hydrogen Embrittlement
- Submission status
- Open
- Submission deadline
Hydrogen is the lightest and one of the most abundant elements. Hydrogen is emerging as a globally important energy source and energy carrier, but storage and transportation remain challenging. Hydrogen can lead to catastrophic failures of materials through a process called hydrogen embrittlement. This is a crucial safety issue for nuclear, automotive, aerospace, construction and chemical industries. Although hydrogen embrittlement has been known for many decades, the underlying mechanisms are still under debate, largely due to the difficulty in precisely mapping the distribution of hydrogen with high fidelity and the inability for computational approaches to accurately capture all the complexities of real-world experimental studies. In the last decade, there has been substantial progress in in situ and in operando high spatial resolution 3D characterization techniques ranging from cryogenic atom probe tomography, advanced transmission electron microscopy, in situ environmental transmission electron microscopy, secondary ion mass spectrometry, thermal desorption spectroscopy, in situ synchrotron X-Ray tomography, in situ high energy X-ray, neutron diffraction methods and other novel methods that provide insight into the effect of hydrogen on deformation mechanisms from the atomic to macroscale. In parallel, there has been also extensive progress in computational approaches targeted toward understanding the influence of hydrogen on deformation mechanisms from atomic scale density functional theory, mesoscale molecular dynamics, Monte Carlo methods, and phase-field simulation to continuum scale finite element modeling. This renaissance in both experimental and computational research hass accelerated mechanistic understanding and providing guidelines to discover materials with high resistance to degradation mechanisms. This special issue on hydrogen embrittlement seeks to develop a collection of reviews and original research articles that summarize cutting-edge developments in understanding hydrogen embrittlement mechanisms of materials both experimentally and computationally.
Editors
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Arun Devaraj, PhD
Pacific Northwest National Laboratory, United States
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Wendy Gu, PhD
Stanford University, United States
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Milos B. Djukic, PhD
University of Belgrade, Serbia
