Modelling of corrosion fatigue crack initiation on martensitic stainless steel in high cycle fatigue regime

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dc.contributor.author EL MAY, Mohamed
ensam.hal.laboratories
  164351 Institut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.author SAINTIER, Nicolas
ensam.hal.laboratories
  164351 Institut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.author PALIN-LUC, Thierry
ensam.hal.laboratories
  164351 Institut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.author DEVOS, Olivier
ensam.hal.laboratories
  164351 Institut de Mécanique et d'Ingénierie de Bordeaux [I2M]
dc.contributor.author BRUCELLE, Olivier
ensam.hal.laboratories
  253456 UTC Aerospace Systems
dc.date.accessioned 2018-06-11T14:03:48Z
dc.date.available 2018-06-11T14:03:48Z
dc.date.issued 2018
dc.date.submitted 2018-06-03T07:50:56Z
dc.identifier.uri http://hdl.handle.net/10985/13235
dc.description.abstract This 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. en
dc.language.iso en
dc.publisher Elsevier
dc.rights Post-print
dc.subject Stainless steel en
dc.subject Corrosion fatigue en
dc.subject Pitting corrosion en
dc.subject Modelling en
dc.title Modelling of corrosion fatigue crack initiation on martensitic stainless steel in high cycle fatigue regime en
ensam.hal.id hal-01812623 *
ensam.hal.status update *
dc.identifier.doi 10.1016/j.corsci.2018.01.034
dc.typdoc Articles dans des revues avec comité de lecture
dc.localisation Centre de Bordeaux-Talence
dc.subject.hal Chimie: Matériaux
dc.subject.hal Sciences de l'ingénieur: Mécanique
dc.subject.hal Sciences de l'ingénieur: Mécanique: Mécanique des matériaux
ensam.audience Internationale
ensam.page 397-405
ensam.journal Corrosion science
ensam.volume 133
ensam.peerReviewing Oui

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