Pregled bibliografske jedinice broj: 1125542
Long-Term Marine Environment Exposure Effect on Butt-Welded Shipbuilding Steel
Long-Term Marine Environment Exposure Effect on Butt-Welded Shipbuilding Steel // Journal of marine science and engineering, 9 (2021), 5; 491, 12 doi:.org/10.3390/jmse9050491 (međunarodna recenzija, članak, znanstveni)
CROSBI ID: 1125542 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Long-Term Marine Environment Exposure Effect on Butt-Welded Shipbuilding Steel
Autori
Vukelić, Goran ; Vizentin, Goran ; Brnić, Josip ; Brčić, Marino, Sedmak, Florian
Izvornik
Journal of marine science and engineering (2077-1312) 9
(2021), 5;
491, 12
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
marine environment effect ; corrosion ; pitting ; AH 36 steel
Sažetak
Extreme environments, such as marine environments, have negative impacts on welded steel structures, causing corrosion, reduced structural integrity and, consequently, failures. That is why it is necessary to perform an experimental research sea exposure effect on such structures and materials. Research presented in this paper deals with the mechanical behavior of butt-welded specimens made of AH36 shipbuilding steel when they are exposed to a natural marine environment (water, seawater, sea splash) for prolonged periods (3, 6, 12, 24, and 36 months). The usual approach to such research is to perform accelerated tests in a simulated laboratory environment. Here, relative mass change due to corrosion over time is given along with calculated corrosion rates. Corroded surfaces of specimens were inspected using optical and scanning electron microscopy and comparison, based on the numbers and dimensions of the corrosion pits (diameter and depth) in the observed area. As a result, it can be concluded that exposure between 3 and 6 months shows significant influence on mass loss of specimens. Further, sea splash generally has the most negative impact on corrosion rate due to the combined chemical and mechanical degradation of material. Pit density is the highest at the base metal area of the specimen. The diameters of the corrosion pits grow over the time of exposure as the pits coalesce and join. Pit depths are generally greatest in the heat affected zone area of the specimen.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo, Tehnologija prometa i transport, Temeljne tehničke znanosti
POVEZANOST RADA
Projekti:
NadSve-Sveučilište u Rijeci-UNIRI_TEHNIC-18-200 - Analiza oštećenja materijala u morskom okolišu (FAMME) (Vukelić, Goran, NadSve ) ( CroRIS)
NadSve-Sveučilište u Rijeci-UNIRI_TEHNIC-18-42 - Istraživanje, analiza i modeliranje ponašanja konstrukcijskih elemenata opterećenih pri sobnoj i povišenim temperaturama (Brnić, Josip, NadSve ) ( CroRIS)
Ustanove:
Tehnički fakultet, Rijeka,
Pomorski fakultet, Rijeka
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus