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dc.contributor.authorSIDHOM, Habib
dc.contributor.authorGHANEM, Farhat
dc.contributor.authorAMADOU, Tidiane
dc.contributor.author
 hal.structure.identifier
GONZALEZ, Gonzalo
250023 Universidad Nacional Autónoma de México = National Autonomous University of Mexico [UNAM]
dc.contributor.author
 hal.structure.identifier
BRAHAM, Chedly
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
dc.date.accessioned2014
dc.date.available2014
dc.date.issued2013
dc.date.submitted2014
dc.identifier.issn0268-3768
dc.identifier.urihttp://hdl.handle.net/10985/8176
dc.description.abstractThe localised corrosion resistance of austenitic stainless steels is strongly influenced by the quality of finished surface. EDM machining induces substantial changes by the high thermal gradients generated by electric sparks. Experimental techniques such as roughness measurement, scanning electron microscopy (SEM), energy dispersive microanalysis (EDX) and X-ray diffraction technique, reveal microgeometrical, microstructural, chemical and mechanical changes. These changes lead to white and heat-affected layers with a depth less than 100 μm. The white layer is a melted material characterised by dendritic structure and constituted by austenite, chromium carbide and ε-carbide. The heat-affected layer is characterised by very large grain size comparatively to the bulk material. Electrochemical test coupled with metallographic examinations using SEM reveals a weakening of the resistance to pitting and intergranular corrosion comparatively to diamond polished surface. This weakening is correlated to differences in structure and chemical composition of white layer. Susceptibility to stress corrosion cracking has been attributed to the field of tensile residual stresses resulting from thermal effects. The removal of the white layer material by polishing or wire brushing restores the corrosion resistance of the AISI316L SS.
dc.language.isoen
dc.publisherSpringer Verlag
dc.rightsPost-print
dc.subjectCorrosion
dc.subjectSurface
dc.subjectMicrostructure
dc.subjectWhite layer
dc.subjectResidual stress
dc.titleEffect of electro discharge machining (EDM) on the AISI316L SS white layer microstructure and corrosion resistance
dc.identifier.doi10.1007/s00170-012-4156-6
dc.typdocArticle dans une revue avec comité de lecture
dc.localisationCentre de Paris
dc.subject.halSciences de l'ingénieur: Matériaux
dc.subject.halSciences de l'ingénieur: Mécanique
ensam.audienceInternationale
ensam.page141-153
ensam.journalInternational Journal of Advanced Manufacturing Technology
ensam.volume65
ensam.issue1-4
hal.identifierhal-00994534
hal.version1
hal.statusaccept
dc.identifier.eissn1433-3015


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