Szczegóły publikacji
Opis bibliograficzny
Influence of the cooling rate on mechanical and corrosion properties of ferritic Si–Mo ductile cast iron / Gaetano PALUMBO, Marcin GÓRNY, Adam Bitka // Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials ; ISSN 1073-5623. — 2023 — vol. 54 iss. 6, s. 2362–2373. — Bibliogr. s. 2372–2373, Abstr. — Publikacja dostępna online od: 2023-03-10. — A. Bitka – afiliacja: Sieć Badawcza Łukasiewicz - Krakowski Instytut Technologiczny
Autorzy (3)
- AGHPalumbo Gaetano
- AGHGórny Marcin
- Bitka Adam
Dane bibliometryczne
| ID BaDAP | 146682 |
|---|---|
| Data dodania do BaDAP | 2023-05-31 |
| Tekst źródłowy | URL |
| DOI | 10.1007/s11661-023-07023-x |
| Rok publikacji | 2023 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Metallurgical and Materials Transactions, A, Physical Metallurgy and Materials Science |
Abstract
In this study, the effect of the cooling rate controlled by different castings thickness ranging from 3 to 25 mm on the mechanical and corrosion behavior of Si–Mo ductile iron (DI) castings was investigated. SEM-EBSD investigations demonstrated that the nodule counts, nodularity, and ferrite phase increased while the ferritic grain size decreased with decreasing in the casting wall thickness; this in turn led to improvements in the tensile properties of the DI. The corrosion behavior of Si–Mo DI castings was investigated after different immersion times in a 3.5 wt pct NaCl solution via electrochemical experiments. The electrochemical results showed that the corrosion resistance of Si–Mo DI decreased in the following order: 3 > 5 > 13 > 25 mm. The results indicated that all of the tested DI samples exhibited galvanic corrosion between the nobler carbide and ferritic matrix phases. SEM analysis showed that the dissolution of the ferrite phase with the pearlite phase exposed and accumulated on the DI’s surface, which led to intense corrosion acceleration. The higher corrosion rates that were observed for those samples with higher casting wall thicknesses could be associated with the higher contents of pearlite/carbide.