Effect of sulfate on the pitting potential of austenitic stainless steels 18Cr8Ni and 17Cr6Mn5Ni in chloride media

dc.contributor.authorCalderon-Hernandez J.W.
dc.contributor.authorHincapie-Ladino D.
dc.contributor.authorMagnabosco R.
dc.contributor.authorAlonso-Falleiros N.
dc.date.accessioned2019-08-20T00:17:37Z
dc.date.available2019-08-20T00:17:37Z
dc.date.issued2019
dc.description.abstract© 2019, Escola de Minas. All rights reserved.Pitting corrosion resistance of two austenitic stainless steels, 18Cr8Ni (Type 304L or UNS S30403 stainless steel) and 17Cr6Mn5Ni, was evaluated in three electrolytic solutions containing a fixed concentration of 0.6M sodium chloride and different additions of sodium sulfate, 0.06M, 0.15M or 0.6M. Cyclic potentiodynamic polarization tests were performed on as-received samples and on specimens annealed at 1010°C, 1040°C, 1070°C or 1100°C. The best pitting corrosion resistance was presented by the 17Cr6Mn5Ni steel annealed at 1070°C or 1100°C, with lower delta ferrite contents, in the electrolyte with the highest sulfate concentration. It can be found that the addition of sodium sulfate inhibits pitting corrosion and has a better inhibitor effect in the high manganese steel.
dc.description.firstpage97
dc.description.issuenumber1
dc.description.lastpage103
dc.description.volume72
dc.identifier.citationCALDERÓN-HERNÁNDEZ, JOSÉ WILMAR; HINCAPIE-LADINO, D.; MAGNABOSCO, R.; ALONSO-FALLEIROS, Neusa. Effect of sulfate on the pitting potential of austenitic stainless steels 18Cr8Ni and 17Cr6Mn5Ni in chloride media. REM - International Engineering Journal, v. 72, p. 97-103, 2019.
dc.identifier.doi10.1590/0370-44672017720018
dc.identifier.issn0370-4467
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/2293
dc.relation.ispartofRevista Escola de Minas
dc.rightsAcesso Aberto
dc.subject.otherlanguageCorrosion inhibitor
dc.subject.otherlanguageManganese
dc.subject.otherlanguagePitting potential
dc.subject.otherlanguageSodium chloride
dc.subject.otherlanguageStainless steel
dc.titleEffect of sulfate on the pitting potential of austenitic stainless steels 18Cr8Ni and 17Cr6Mn5Ni in chloride media
dc.typeArtigo
fei.scopus.citations7
fei.scopus.eid2-s2.0-85076336056
fei.scopus.updated2024-02-01
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85076336056&origin=inward
Arquivos
Coleções