Szczegóły publikacji
Opis bibliograficzny
Effect of zirconium conversion coating parameters on the microstructure and corrosion resistance of AlSi11Cu2(Fe) cast alloy / U. LELEK-BORKOWSKA, M. WRÓBEL, Ł. Rogal, M. KOPYŚCIAŃSKI, K. KOWALSKI, A. Sikora, D. Dobrowolska, B. Stefańczyk, S. DYMEK // Applied Surface Science ; ISSN 0169-4332 . — Tytuł poprz.: Applications of Surface Science. — 2026 — vol. 749 art. no. 167872, s. 1–13. — Bibliogr. s. 11–13, Abstr. — Publikacja dostępna online od: 2026-07-18
Autorzy (9)
- AGHLelek-Borkowska Urszula
- AGHWróbel Mirosław
- Rogal Łukasz
- AGHKopyściański Mateusz
- AGHKowalski Kazimierz
- Sikora Andrzej
- Dobrowolska D.
- Stefańczyk B.
- AGHDymek Stanisław
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 169426 |
|---|---|
| Data dodania do BaDAP | 2026-09-18 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.apsusc.2026.167872 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Applied Surface Science |
Abstract
This study investigates the role of micro-galvanic interactions in the formation of zirconium-based conversion coatings on AlSi11Cu2(Fe) cast alloy. Controlled application procedures enabled formation of an amorphous ZrO2·mH2O (m < 2) layer ∼100 nm thick. The coating nucleates on silicon particles at almost double the thickness as it does on the aluminum matrix due to micro-galvanic coupling. A 5 wt% NaCl corrosion test showed a corrosion rate of 6.55 × 10−7 mm·y−1 for the 10 min conversion coating deposition process, which is an enhancement by three orders of magnitude compared to bare metal. The mechanisms involve selective anodic dissolution of aluminum and cathodic activation on silicon sites. The conversion coating demonstrates strong adhesion to subsequent powder coating, and provides adequate protection from corrosion in saline environments. This research demonstrates an environmentally friendly alternative to chromate processing for high-silicon casting alloys. The novelty of this work lies in identifying and explaining the micro-galvanically driven selective growth of zirconium conversion coatings on Si-rich constituents of Al–Si cast alloys, thereby linking alloy microstructure to coating heterogeneity and formation mechanisms. © 2026 The Authors
