Influence of thermal treatments in the corrosion behaviour of HVOF Cr 3C2-NiCr coatings

Registro completo de metadados
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorGuilemany, J. M.-
Autor(es): dc.creatorFernández, J.-
Autor(es): dc.creatorDelgado, J.-
Autor(es): dc.creatorBenedetti, Assis Vicente-
Data de aceite:
Data de disponibilização:
Data de envio:
Data de envio:
Data de envio:
Fonte completa do material: dc.identifier
Fonte: dc.identifier.uri
Descrição: dc.descriptionThermal spray coatings as Cr3C2-NiCr obtained by high velocity oxy-fuel spraying (HVOF) are mainly applied due to their behaviour against aggressive erosive-abrasive and corrosive atmospheres and their thermal stability at high temperatures [1]. In order to increase the corrosion protection that it offers to the substrate trying to close the interconnected pores, it is possible to apply a thermal treatment with the gun during the spraying of the coating. This treatment could be applied in different ways. One of these ways consists of spraying only a few layers of coating followed by thermal treatment and finally the spray of the rest of layers. This thermal treatment on spraying is studied related to the corrosion properties of the system. The study comprises the electrochemical characterisation of the system by open circuit potential (OC), polarisation resistance (Rp), cyclic voltammetry (CV) and impedance spectroscopy measurements (EIS). Optical and scanning electron microscopy characterisation (OM and SEM) of the top and cross-section of the system has been used in order to justify the electrochemical results.-
Formato: dc.format1165-1169-
Idioma: dc.languageen-
Relação: dc.relationProceedings of the International Thermal Spray Conference-
Direitos: dc.rightsopenAccess-
Palavras-chave: dc.subjectChromium compounds-
Palavras-chave: dc.subjectCorrosion-
Palavras-chave: dc.subjectCyclic voltammetry-
Palavras-chave: dc.subjectElectrochemistry-
Palavras-chave: dc.subjectElectrolytes-
Palavras-chave: dc.subjectEnergy dispersive spectroscopy-
Palavras-chave: dc.subjectHeat treatment-
Palavras-chave: dc.subjectOptical microscopy-
Palavras-chave: dc.subjectPorosity-
Palavras-chave: dc.subjectScanning electron microscopy-
Palavras-chave: dc.subjectThermodynamic stability-
Palavras-chave: dc.subjectHigh velocity oxy-fuel (HVOF) spraying-
Palavras-chave: dc.subjectImpedance spectroscopy-
Palavras-chave: dc.subjectSprayed coatings-
Título: dc.titleInfluence of thermal treatments in the corrosion behaviour of HVOF Cr 3C2-NiCr coatings-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.