Simulating corrosion of Al2CuMg phase by measuring ionic currents, chloride concentration and pH
| Autor: | Zhenhuang Tian, Maryna G. Taryba, En-Hou Han, Fuchun Liu, Hongwei Shi, Sviatlana V. Lamaka, Tianhui Hu |
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| Rok vydání: | 2014 |
| Předmět: |
Materials science
General Chemical Engineering Metallurgy Alloy Analytical chemistry Intermetallic chemistry.chemical_element General Chemistry engineering.material Corrosion chemistry Aluminium visual_art Phase (matter) Pitting corrosion Aluminium alloy visual_art.visual_art_medium engineering General Materials Science Dissolution |
| Zdroj: | Corrosion Science. 88:178-186 |
| ISSN: | 0010-938X |
| Popis: | The coupling of pure Al, Cu and Mg wires and the coupling of Al 2 CuMg intermetallic rod and Al wire were used to study the corrosion process of Al 2 CuMg phase particles in 2024-T3 aluminium alloy, by means of scanning vibrating electrode technique (SVET) and scanning ion-selective electrode technique (SIET). The results show the preferential dissolution of Mg in the coupling of Al, Cu and Mg. Al 2 CuMg was found to show self-dissolution when coupled with Al, rather than anodic dissolution. According to the results, a mechanism of early corrosion of S phase in AA2024-T3 is proposed. |
| Databáze: | OpenAIRE |
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