Hydrogen diffusion in aluminum-killed low carbon steels
| Autor: | D. Noël, P. Hastings, J.-J. Hechler, C. P. Vijayan, R. Matthieu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 1986 |
| Předmět: |
Materials science
Hydrogen Diffusion Metallurgy fungi Analytical chemistry technology industry and agriculture chemistry.chemical_element Surfaces and Interfaces General Chemistry Condensed Matter Physics Electrochemistry Grain size Surfaces Coatings and Films Cathodic protection chemistry.chemical_compound chemistry Thiourea Aluminium Materials Chemistry Carbon |
| Popis: | Hydrogen diffusion has been studied in aluminum-killed 1006 steel by the electrochemical technique of hydrogen permeation. Diffusion coefficients reproducible to within 10% have been obtained with the addition of thiourea in the cathodic compartment. The diffusion coefficient increases with increasing Al:N ratio. This phenomenon has been related to the anisotropy of the steel and to the grain size. On the basis of calculations proposed by Leblond and Dubois, the presence of irreversible traps is indicated in this type of steel. The irreversibly absorbed hydrogen concentration shows a tendency to increase with nitrogen content. Compared with aluminum-killed 1006 steel, decarburized rimmed steel shows a higher capacity for retaining irreversibly absorbed hydrogen. |
| Databáze: | OpenAIRE |
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