Hydrogen embrittlement of low carbon structural steel at macro-, micro- and nano-levels
| Autor: | Milos B. Djukic, Muhammad Wasim |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Hydrogen Carbon steel Energy Engineering and Power Technology chemistry.chemical_element Young's modulus 02 engineering and technology engineering.material 010402 general chemistry 01 natural sciences Corrosion symbols.namesake medicine Composite material Elastic modulus Renewable Energy Sustainability and the Environment technology industry and agriculture Blisters Nanoindentation 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Fuel Technology chemistry 13. Climate action symbols engineering medicine.symptom 0210 nano-technology Hydrogen embrittlement |
| Zdroj: | International Journal of Hydrogen Energy. 45:2145-2156 |
| ISSN: | 0360-3199 |
| Popis: | This paper aims to investigate the effect of hydrogen-induced mechanical degradation of low carbon steel at macro-, micro- and nano-levels in the hydrogen-rich acidic environments. From the test results of specimens, a relationship in hydrogen concentration and corrosion propagation was observed that led to the significant reductions of bulk elastic modulus after 28 days of exposure to the hydrogen-rich acidic environments. Through microstructural analysis, the deformation of larger grains, cracks, and blisters caused by hydrogen penetration was found as the possible cause for this reduction. Moreover, by performing nanoindentation on the areas of interest of various specimens at planned time periods, the influence of hydrogen on the nano-elastic and nano-hardness properties of grains was determined. The 3D surface profiles of the nano-elastic modulus and nano-hardness of various specimens are presented in this paper. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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