The significance and determination by image analysis of microcrack density in hard chromium plating

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dc.contributor.authorDo Nascimento, Marcelino Pereira [UNESP]
dc.contributor.authorVoorwald, Herman Jacobus Cornells [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:23:31Z
dc.date.available2014-05-27T11:23:31Z
dc.date.issued2008-04-01
dc.description.abstractIt is well known that the microcrack density is a fundamental parameter in hard chromium electroplating. The chemical and mechanical properties of this coating are widely dependent on its microcrack density. In this paper a simple image analysis procedure to determine microcrack density is presented in order to demonstrate it as a fundamental tool to estimate the fatigue, corrosion and wear behavior, as well as the residual stress field of a coated component. For this purpose, the image analysis procedure was carried out on two kinds of hard chromium plating - one called accelerated (high velocity of deposition and fluoride-free) and the other conventional (with fluoride). The coatings were applied on samples of AISI 4340 aeronautical steel, which is widely used in aircraft landing gear components. To characterize the practical significance of this study, the microcrack density results were related to the fatigue, wear and corrosion behavior from previous study and to the residual stress field in the coatings.en
dc.description.affiliationFatigue and Aeronautical Material Research Group State University of Sao Paulo - UNESP 333, Ariberto Pereira da Cunha Ave., Guaratingueta City - CEP: 12516-460 Sao Paulo State
dc.description.affiliationUnespFatigue and Aeronautical Material Research Group State University of Sao Paulo - UNESP 333, Ariberto Pereira da Cunha Ave., Guaratingueta City - CEP: 12516-460 Sao Paulo State
dc.format.extent36-42
dc.identifier.citationPlating and Surface Finishing, v. 95, n. 4, p. 36-42, 2008.
dc.identifier.issn0360-3164
dc.identifier.lattes3511534795805776
dc.identifier.scopus2-s2.0-78349258953
dc.identifier.urihttp://hdl.handle.net/11449/70386
dc.language.isoeng
dc.relation.ispartofPlating and Surface Finishing
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectHard chromium electroplating
dc.subjectImage analysis
dc.subjectMicrocrack density
dc.subjectStereology
dc.subjectSurface coating
dc.titleThe significance and determination by image analysis of microcrack density in hard chromium platingen
dc.typeArtigo
unesp.author.lattes3511534795805776
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Guaratinguetápt
unesp.departmentMateriais e Tecnologia - FEGpt

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Guaratinguetá - FEG - Faculdade de Engenharia e Ciências