Electrochemical Hydrogen Charging of Duplex Stainless Steel
| Autor: | Lisa Claeys, Kim Verbeken, Tom Depover, I. De Graeve |
|---|---|
| Přispěvatelé: | In-Situ Electrochemistry combined with nano & micro surface Characterization, Architectural Engineering, Electrochemical and Surface Engineering, Materials and Chemistry |
| Rok vydání: | 2019 |
| Předmět: |
plastic deformation
Technology and Engineering Materials science Chemistry(all) Hydrogen 020209 energy General Chemical Engineering chemistry.chemical_element 02 engineering and technology SUSCEPTIBILITY Electrochemistry Diffusion Materials Science(all) DEFORMATION MECHANICAL DEGRADATION 0202 electrical engineering electronic engineering information engineering Saturation level Duplex stainless steels General Materials Science Embrittlement diffusion Metallurgy hydrogen absorption duplex stainless steels General Chemistry CRACKING 021001 nanoscience & nanotechnology Microstructure TRANSPORT TRANSFORMATION Cracking EMBRITTLEMENT Hydrogen absorption chemistry Duplex (building) Chemical Engineering(all) AFM TI Deformation (engineering) 0210 nano-technology |
| Zdroj: | CORROSION |
| ISSN: | 1938-159X 0010-9312 |
| DOI: | 10.5006/2959 |
| Popis: | This study evaluates the electrochemical hydrogen charging behavior and interaction between hydrogen and the microstructure of a duplex stainless steel. A saturation level of approximately 650 wppm is reached after 10 d of charging. The data are compared with a model resulting in a diffusion coefficient of 2.1 x 10(-14) m(2)/s. A two-step increase of the concentration is observed and ascribed to saturation of ferrite followed by charging of austenite grains. Microstructural changes are observed during charging, i.e., formation and interaction of dislocations, as a result of the high residual stresses inherent to the production process of duplex stainless steels. |
| Databáze: | OpenAIRE |
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