- Tytuł:
- Selective Corrosion of Al2Cu Intermetallic Phase in Orthophosphoric Acid Aqueous Solutions
- Autorzy:
-
Kwolek, P.
Gradzik, A.
Szeliga, D.
Kościelniak, B. - Tematy:
-
intermetallic phase
selective corrosion
orthophosphoric acid
electrochemical impedance spectroscopy - Pokaż więcej
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Powiązania:
- https://bibliotekanauki.pl/articles/351947.pdf Link otwiera się w nowym oknie
- Opis:
- 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.
- Dostawca treści:
- Biblioteka Nauki
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