Szczegóły publikacji
Opis bibliograficzny
Microstructural aspects of premature pitting corrosion of steel pipe – case study / Dorota TYRAŁA, Bogdan PAWŁOWSKI // Journal of Failure Analysis and Prevention ; ISSN 1547-7029. — 2022 — vol. 22 iss. 6, s. 2147–2153. — Bibliogr. s. 2152, Abstr. — Publikacja dostępna online od: 2022-11-08
Autorzy (2)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 144337 |
|---|---|
| Data dodania do BaDAP | 2023-01-02 |
| Tekst źródłowy | URL |
| DOI | 10.1007/s11668-022-01530-6 |
| Rok publikacji | 2022 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Journal of Failure Analysis and Prevention |
Abstract
A premature pitting corrosion in seam-welded 3-inch L235 steel pipe was reported to occur after 8 years in service. This pipe was part of a closed ice water cooling system, where the inlet water temperature was 6 degrees C and the outlet water temperature was 11 degrees C. The present work aimed to investigate the causes of this premature pitting corrosion of the pipe through metallographic investigations. This work comprised a visual examination of the internal surfaces of the pipe and microstructural examinations of the corrosion perforation regions (pitting corrosion areas) using optical and scanning electron microscopy (SEM) with energy dispersive X-ray (EDX) analysis. The investigations showed that the corrosion pits occurred only in areas with a huge number of specific micro-voids that can be associated with the excessive presence of trapped hydrogen dissolved in the steel, probably during steelmaking operations.