Intergranular Corrosion of 2024 Alloy in Chloride Solutions
| Autor: | Jéro^me Delfosse, Christel Augustin, Georges Mankowski, Christine Blanc, Eric Andrieu |
|---|---|
| Přispěvatelé: | Centre interuniversitaire de recherche et d'ingenierie des matériaux (CIRIMAT), Centre National de la Recherche Scientifique (CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut de Chimie du CNRS (INC), EADS Innovation Works [Suresnes] (EADS IW), EADS - European Aeronautic Defense and Space, EADS N.V. (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - INPT (FRANCE) |
| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: |
Materials science
020209 energy Matériaux Alloy chemistry.chemical_element 02 engineering and technology engineering.material Chloride Corrosion Aluminium aluminium alloys Load to failure Ultimate tensile strength 0202 electrical engineering electronic engineering information engineering Materials Chemistry Electrochemistry medicine Reproducibility corrosion Renewable Energy Sustainability and the Environment Metallurgy [CHIM.MATE]Chemical Sciences/Material chemistry Intergranular corrosion 021001 nanoscience & nanotechnology Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry tensile strength engineering 0210 nano-technology medicine.drug |
| Zdroj: | Journal of The Electrochemical Society Journal of The Electrochemical Society, Electrochemical Society, 2007, vol. 154, pp.C637-C644. ⟨10.1149/1.2778224⟩ |
| ISSN: | 0013-4651 1945-7111 |
| DOI: | 10.1149/1.2778224⟩ |
| Popis: | International audience; Experiments were performed to determine the propagation kinetics of intergranular corrosion on 2024 aluminum alloy immersed in 1 and 3 M chloride solutions. Tests consisting of immersion in a corrosive solution followed by optical observations on sectioned samples were carried out. This method was found to be time consuming and led to a lack of reproducibility due to the random nature of the corrosion attacks. Another method proved to be more efficient; it consisted of measuring the load to failure on precorroded tensile specimens vs preimmersion time in an aggressive environment. This method was found to allow the mean depth of the corrosion defects to be determined. Further, in 1 and 3 M chloride solution, intergranular corrosion led to the formation of a nonbearing zone, the thickness of which was equal to the mean depth of the corrosion defects. This corroded zone explained the premature failure of the specimens when a uniaxial tensile stress was applied. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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