Enhanced corrosion of 7075 alloy by the presence of Bacillus megaterium

Vista sencilla de ítem
dc.contributor.authorVejar, Nelson D.
dc.contributor.authorSacre, Juan
dc.contributor.authorCollao, Bernardo
dc.contributor.authorPerez-Donoso, José
dc.contributor.authorPáez, Maritza A.
dc.contributor.authorPineda, Fabiola
dc.contributor.authorWorker, Benjamin
dc.contributor.authorSancy, Mamie
dc.date.accessioned2023-12-04T22:32:36Z
dc.date.available2023-12-04T22:32:36Z
dc.date.issued2016
dc.descriptionIndexación: Scopus.es
dc.description.abstractA Bacillus megaterium strain with corrosive properties was isolated from a bacterial community collected from the drain valve of a C130 aircraft principal fuel tank. This strain and the consortium present in the valve were studied microbiologically and electrochemically to evaluate the risk of corrosion. Aluminum alloy 7075 was used as a substrate and the corrosion behavior was studied in sterile minimal salt medium (MSM) as a function of immersion time. The isolation and characterization of the consortium by DNA sequencing showed that the bacterium with corrosive properties is closely related to B. megaterium. Electrochemical results revealed that the corrosion rate was not influenced in sterile and inoculated media with the consortium. However, a corrosive behavior was determined in presence of the isolated B. megaterium strain after 14 days immersion time. The effect might be related to interfacial local pH changes by oxygen reduction to OH ions. Further, SEM examinations and EDX analysis of metallic samples exposure in inoculated media showed localized attacks.es
dc.description.urihttps://www-scopus-com.recursosbiblioteca.unab.cl/record/display.uri?eid=2-s2.0-84997521907&origin=resultslist&sort=plf-f&src=s&nlo=&nlr=&nls=&sid=1062a979eb7755aca0d72c5ea38142fd&sot=aff&sdt=cl&cluster=scopubyr%2c%222016%22%2ct&sl=42&s=AF-ID%28%22Universidad+Andr%c3%a9s+Bello%22+60002636%29&relpos=502&citeCnt=5&searchTerm=
dc.identifier.citationInternational Journal of Electrochemical Science. Volume 11, Issue 11, Pages 9723 - 9733. 2016es
dc.identifier.doi10.20964/2016.11.33
dc.identifier.issn1452-3981
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/54380
dc.language.isoenes
dc.publisherElectrochemical Science Groupes
dc.subjectMicrobiologically Influenced Corrosiones
dc.subjectBiocorrosiones
dc.subjectAluminum Alloyes
dc.subject7075es
dc.subjectBacillus Megateriumes
dc.titleEnhanced corrosion of 7075 alloy by the presence of Bacillus megateriumes
dc.typeArtículoes
Archivos
Bloque original
Mostrando 1 - 1 de 1
Miniatura
Nombre:
Vejar_Enhanced_corrosion_of_7075_alloy_by_the_presence_2016.pdf
Tamaño:
1.24 MB
Formato:
Adobe Portable Document Format
Descripción:
TEXTO COMPLETO EN INGLES
Descargar
Bloque de licencias
Mostrando 1 - 1 de 1
No hay miniatura disponible
Nombre:
license.txt
Tamaño:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descripción:
Descargar
Colecciones
Fac.CV - Artículos de Revista