In situ small-scale hydrogen embrittlement testing made easy: An electrolyte for preserving surface integrity at nano-scale during hydrogen charging
| Autor: | Malin S.B. Hope, Afrooz Barnoush, Nousha Kheradmand, A.H. Zavieh, Tarlan Hajilou, Roy Johnsen |
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| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Hydrogen Renewable Energy Sustainability and the Environment technology industry and agriculture Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology Electrolyte 021001 nanoscience & nanotechnology Condensed Matter Physics Electrochemistry 01 natural sciences Cathodic protection Fuel Technology Adsorption Chemical engineering chemistry 0103 physical sciences Surface roughness 0210 nano-technology Surface integrity Hydrogen embrittlement |
| Zdroj: | 12516-12529 |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2018.04.168 |
| Popis: | An electrolyte for electrochemical hydrogen charging of corrosion-susceptible alloys is developed, which preserves the surface integrity at nano-scale by minimizing the surface roughness alternation. To assure the formation and adsorption of the hydrogen from the electrolyte, permeation tests were performed on Fe 3 wt%Si ferritic steel. X-ray photoelectron spectroscopy method was used to check the effect of the glycerol-based solution on the chemical composition of the sample surface. The surface analysis revealed minimal chemical and topography alteration on the surface after different electrochemical treatments. Various types of in situ small-scale mechanical tests such as nano-indentation, micro-pillar compression, and micro-cantilever bending tests were performed inside this electrolyte while the samples being charged with hydrogen under cathodic potential. These small-scale mechanical tests showed that the solution facilitates studying hydrogen embrittlement in nano- or micro-scale. |
| Databáze: | OpenAIRE |
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