Hydrogen embrittlement in ferritic steels
| Autor: | May L. Martin, Matthew J. Connolly, Andrew J. Slifka, Frank W. DelRio |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Future studies Structural material Hydrogen Metallurgy General Physics and Astronomy chemistry.chemical_element 02 engineering and technology Hydrogen content 021001 nanoscience & nanotechnology 01 natural sciences chemistry Hydrogen pressure 0103 physical sciences Grain boundary 0210 nano-technology Embrittlement Hydrogen embrittlement |
| Zdroj: | Applied physics reviews. 7(4) |
| ISSN: | 1931-9401 |
| Popis: | Hydrogen will be a crucial pillar in the clean-energy foundation, and therefore, the development of safe and cost-effective storage and transportation methods is essential to its success. One of the key challenges in the development of such storage and transportation methods is related to the interaction of hydrogen with structural materials. Despite extensive work, there are significant questions related to the hydrogen embrittlement of ferritic steels due to challenges associated with these steels, coupled with the difficulties with gauging the hydrogen content in all materials. Recent advancements in experimental tools and multi-scale modeling are starting to provide insight into the embrittlement process. This review focuses on a subset of the recent developments, with an emphasis on how new methods have improved our understanding of the structure-property-performance relationships of ferritic steels subjected to mechanical loading in a hydrogen environment. The structure of ferritic steels in the presence of hydrogen is described in terms of the sorption and dissociation processes, the diffusion through the lattice and grain boundaries, and the hydrogen-steel interactions. The properties of ferritic steels subjected to mechanical loading in hydrogen are also investigated; the effects of test conditions and hydrogen pressure on the tensile, fracture, and fatigue properties of base metal and welds are highlighted. The performance of steels in hydrogen is then explored via a comprehensive analysis of the various embrittlement mechanisms. Finally, recent insights from in situ and high-resolution experiments are presented and future studies are proposed to address challenges related to embrittlement in ferritic steels. |
| Databáze: | OpenAIRE |
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