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dc.contributor.authorSIDHOM, N
dc.contributor.authorMAKHLOUF, K
dc.contributor.authorKHLIFI, A
dc.contributor.author
 hal.structure.identifier
BRAHAM, Chedly
86289 Procédés et Ingénierie en Mécanique et Matériaux [Paris] [PIMM]
dc.contributor.authorSIDHOM, H
dc.date.accessioned2014
dc.date.available2015
dc.date.issued2014
dc.date.submitted2014
dc.identifier.urihttp://hdl.handle.net/10985/8778
dc.description.abstractThe effects of wire brush hammering on low cycle fatigue behaviour of AISI 316 austenitic stainless steel has been investigated on turned samples through an experimental study combining strain controlled fatigue tests, scanning electron microscope examination and X-ray diffraction analysis. An increase in fatigue life by 266% was reported at an imposed strain amplitude of Δεt/2 = 0.2%. This improvement is limited to Δεt/2 ≤ 0.5%. It is found that wire brush hammering produces a surface texture that favours, under cyclic loading, nucleation of randomly dispersed short cracks of the order of 50 μm in length stabilized by a compressive residual stress field. In contrast, turned surface showed much longer unstable cracks of the order of 200 μm in length nucleated in the machining groves and propagated under the effect of a tensile residual stress field. It has also been established that wire brush hammering can be used as intermittent treatment to improve the residual fatigue life of components subjected to cyclic loading. The treatment is very efficient if it is performed at a fraction of service lifetime ni/Nr lower than 0.5.
dc.language.isoen
dc.publisherWiley
dc.rightsPost-print
dc.subjectfatigue crack
dc.subjectfatigue life
dc.subjectresidual stress
dc.subjectstainless steel
dc.subjectwire brush hammering
dc.titleAssessment of low cycle fatigue improvement of machined AISI 316 stainless steel by brush hammering
ensam.embargo.terms3 Months
dc.identifier.doi0.1111/ffe.12179
dc.typdocArticles dans des revues 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.page1087-1100
ensam.journalFatigue and Fracture of Engineering Materials and Structures
ensam.volume37
hal.submission.permittedtrue


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