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 hal.structure.identifier
EL MAY, Mohamed
164351 Institut de Mécanique et d'Ingénierie de Bordeaux [I2M]
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 hal.structure.identifier
SAINTIER, Nicolas
164351 Institut de Mécanique et d'Ingénierie de Bordeaux [I2M]
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PALIN-LUC, Thierry
164351 Institut de Mécanique et d'Ingénierie de Bordeaux [I2M]
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DEVOS, Olivier
259761 Université de Bordeaux [UB]
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BRUCELLE, Olivier
253456 UTC Aerospace Systems
dc.date.accessioned2018
dc.date.available2018
dc.date.issued2018
dc.date.submitted2018
dc.identifier.urihttp://hdl.handle.net/10985/13235
dc.description.abstractThis paper presents an analytical model for assessing the corrosion fatigue crack initiation life on a martensitic stainless steel X12CrNiMoV12-3 in high cycle fatigue regime (between 105 and 107 cycles). Based on in-situ electrochemical measurements during corrosion fatigue tests in NaCl aqueous solution, the corrosion fatigue crack initiation mechanism was identified. Two main stages were investigated: (i) the fracture of the passive film by slip bands and (ii) the free dissolution of the metal developing fatigue crack initiation from a critical corrosion defect. The depassivation stress threshold corresponds to the median fatigue strength at 107 cycles for fatigue corrosion tests. For an applied stress range less than this threshold, the depassivation phenomenon was not observed at 107 cycles and no crack initiation occurred. The proposed model takes into account the depassivation process induced by the slip bands emergence at the specimen surface and the corrosion rate under cyclic loading. The experimental results are compared to the proposed model taking into account mechanical and electrochemical material parameters.
dc.language.isoen
dc.publisherElsevier
dc.rightsPost-print
dc.subjectStainless steel
dc.subjectCorrosion fatigue
dc.subjectPitting corrosion
dc.subjectModelling
dc.titleModelling of corrosion fatigue crack initiation on martensitic stainless steel in high cycle fatigue regime
ensam.embargo.terms2018-10
dc.identifier.doi10.1016/j.corsci.2018.01.034
dc.typdocArticles dans des revues avec comité de lecture
dc.localisationCentre de Bordeaux-Talence
dc.subject.halChimie: Matériaux
dc.subject.halSciences de l'ingénieur: Mécanique
dc.subject.halSciences de l'ingénieur: Mécanique: Mécanique des matériaux
ensam.audienceInternationale
ensam.page397-405
ensam.journalCorrosion science
ensam.volume133
ensam.peerReviewingOui
hal.identifierhal-01812623
hal.version1
hal.submission.permittedupdateFiles


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