Academic Journal
Selective Corrosion of Al2Cu Intermetallic Phase in Orthophosphoric Acid Aqueous Solutions
| العنوان: | Selective Corrosion of Al2Cu Intermetallic Phase in Orthophosphoric Acid Aqueous Solutions |
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| المؤلفون: | P. Kwolek, A. Gradzik, D. Szeliga, B. Kościelniak |
| المصدر: | Archives of Metallurgy and Materials, Vol vol. 64, Iss No 4, Pp 1223-1229 (2019) |
| بيانات النشر: | Polish Academy of Sciences, 2019. |
| سنة النشر: | 2019 |
| المجموعة: | LCC:Mining engineering. Metallurgy LCC:Materials of engineering and construction. Mechanics of materials |
| مصطلحات موضوعية: | intermetallic phase, selective corrosion, orthophosphoric acid, electrochemical impedance spectroscopy, Mining engineering. Metallurgy, TN1-997, Materials of engineering and construction. Mechanics of materials, TA401-492 |
| الوصف: | Al2Cu phase has been obtained by melting pure metals in the electric arc furnace. It has been found that the intermetallic phase undergoes selective corrosion in the H3PO4 aqueous solutions. Aluminium is dissolved, the surface becomes porous and enriched with copper. The corrosion rate equals to 371 ± 17 g·m–2·day–1 (aerated solution) and 284 ± 9 g·m–2·day–1 (deaerated solution). The surface of Al2Cu phase after selective corrosion was characterised by using electrochemical impedance spectroscopy. It was found that the surface area of the specimens increases with temperature due to higher corrosion rate and is between 2137 and 3896 cm2. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2300-1909 |
| Relation: | https://journals.pan.pl/Content/113572/PDF/AMM-2019-4-03-Kwolek.pdf; https://doaj.org/toc/2300-1909 |
| DOI: | 10.24425/amm.2019.130084 |
| URL الوصول: | https://doaj.org/article/772bc48043b14c4793f44171a3774966 |
| رقم الانضمام: | edsdoj.772bc48043b14c4793f44171a3774966 |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 23001909 |
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| DOI: | 10.24425/amm.2019.130084 |