Szczegóły publikacji
Opis bibliograficzny
Corrosion of structural constituents of 2017 aluminium alloy in acidic solutions containing inhibitors / Przemysław Kwolek, Grażyna Mrówka-Nowotnik, Magdalena WYTRWAŁ-SARNA // Materials and Corrosion = Werkstoffe und Korrosion ; ISSN 0947-5117. — 2021 — vol. 72 iss. 5, s. 888–903. — Bibliogr. s. 902–903, Abstr.
Autorzy (3)
- Kwolek Przemysław
- Mrówka-Nowotnik Grażyna
- AGHWytrwał Magdalena
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 134028 |
|---|---|
| Data dodania do BaDAP | 2021-05-07 |
| Tekst źródłowy | URL |
| DOI | 10.1002/maco.202012046 |
| Rok publikacji | 2021 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Materials and Corrosion |
Abstract
The objective of this study is to establish the corrosion behaviour of the most important structural constituents of the aluminium alloy 2017 in orthophosphoric acid solutions containing heteropolyoxomolybdate, tungstate and vanadate. These are potential candidates for replacing toxic hexavalent chromium species in stripping solution for anodic coatings. The corrosion rate of the alloy is estimated with linear polarisation method. It decreases from 0.58 mA cm(-2) in uninhibited solution to 0.10 mA cm(-2) in a solution containing heteropolyoxomolybdate species. Microscopic studies reveal that heteropolyoxomolybdate species inhibit corrosion of the matrix and intermetallic Al-15(Fe,Mn)(3)(Si,Cu)(2) but not Mg2Si. Intermetallic Al2Cu remains not corroded. Heteropolyoxotungstate species virtually do not inhibit the corrosion of the alloy. The solution containing vanadium species is not stable with time and the corrosion rate is not determined. Nevertheless, corrosion of the matrix is inhibited, but intermetallics Al-15(Fe,Mn)(3)(Si,Cu)(2) together with Mg2Si are dissolved. X-ray photoelectron spectroscopy is used for examination of a corrosion product precipitated on the surface.
