Szczegóły publikacji
Opis bibliograficzny
The influence of microstructure and phase composition of $AlCrFe_{2}Ni_{2}Mox$ medium-entropy alloys on spontaneous corrosion in 0.1 M $H_{2}SO_{4}$ at 25°C and 50°C / Marzena MITORAJ-KRÓLIKOWSKA, Jakub CZERSKI, Piotr RUSINIAK, Mateusz MARZEC, Elżbieta GODLEWSKA // Intermetallics ; ISSN 0966-9795 . — 2026 — vol. 193 art. no. 109278, s. 1-20. — Bibliogr. s. 19-20, Abstr. — Publikacja dostępna online od: 2026-03-31
Autorzy (5)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 166958 |
|---|---|
| Data dodania do BaDAP | 2026-04-14 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.intermet.2026.109278 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Intermetallics |
Abstract
The corrosion behaviour of AlCrFe2Ni2Mox (x = 0.0, 0.1, 0.2, 0.3 and 0.6) medium-entropy alloys was investigated in 0.1 M H2SO4 under unpolarised conditions during immersion tests conducted at 25 °C and 50 °C, complementing previous potentiodynamic experiments. The study focused on monitoring the evolution of corroded microstructures over various immersion times, to reveal changes in surface morphology and cross-sectional features. The corrosion experiments were further supported by analyses of the chemical composition of the corrosive medium and the sample surfaces. The results indicated that both at the temperature of 25 °C and 50 °C, corrosion was initiated by selective dissolution of the BCC-B2 phase followed by dissolution of FCC or σ phase in subsequent corrosion stages. The addition of Mo influenced corrosion resistance of the AlCrFe2Ni2 alloy primarily by changing its microstructure and phase composition. However, the Mo influence was mainly negative especially when combined with the BCC-B2 phase formation. The BCC-B2 phase exhibited low solubility for Mo, and therefore Mo failed to improve its corrosion resistance. At 50 °C, an amorphous Mo-oxyhydroxide layer formed on the surface of the AlCrFe2Ni2Mox alloys due to redeposition of some Mo-containing species from the solution. Despite several-micron thickness of this layer, it did not provide effective protection against corrosion.