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dc.contributor.authorDHONDT, Matthieu
dc.contributor.authorAUBERT, Isabelle
dc.contributor.authorOLIVE, Jean-Marc
dc.contributor.authorSAINTIER, Nicolas
dc.date.accessioned2015
dc.date.available2017
dc.date.issued2015
dc.date.submitted2015
dc.identifier.issn0921-5093
dc.identifier.urihttp://hdl.handle.net/10985/10494
dc.description.abstractMechanical behavior analysis of the friction stir weld nugget of an aluminum alloy 2050 reveals a major role of the microstructure which varies with the distance to the weld surface. Three types of microstructure heterogeneities are considered namely grain size, precipitation state and textured bands. The grain size and the T1 precipitates density decrease with the distance from the weld surface. The density of T1 precipitates has a first order effect on micro-hardness variations and makes the Hall–Petch rule not valid in this case. Tensile tests combined with strain field identification done by digital image correlation measurements demonstrate the good correlation between textured bands and strain field heterogeneities. Crystal plasticity simulations by finite element method well account for the macroscopic mechanical behavior as well as strain field in textured bands.
dc.description.sponsorshipThis work was financially supported by the ANR MatetPro program ANR-08-MAPR-0020-05 (Coralis project, Corrosion of Aluminium Lithium Structures).
dc.language.isoen
dc.publisherElsevier
dc.rightsPost-print
dc.subjectAluminum alloy
dc.subjectFriction stir welding
dc.subjectMechanical behavior
dc.subjectMicrostructure
dc.subjectCrystal plasticity
dc.subjectSimulation
dc.titleMechanical behavior of periodical microstructure induced by friction stir welding on Al–Cu–Li 2050 alloy
ensam.embargo.terms2 years
dc.identifier.doi10.1016/j.msea.2015.05.072
dc.typdocArticle dans une revue avec comité de lecture
dc.localisationCentre de Bordeaux-Talence
dc.localisationCentre de Lille
dc.subject.halSciences de l'ingénieur: Matériaux
dc.subject.halSciences de l'ingénieur: Mécanique: Matériaux et structures en mécanique
dc.subject.halSciences de l'ingénieur: Mécanique: Mécanique des matériaux
dc.subject.halSciences de l'ingénieur: Mécanique: Mécanique des structures
ensam.audienceInternationale
ensam.page69-75
ensam.journalMaterials Science and Engineering: A
ensam.volume644
ensam.peerReviewingOui
hal.statusunsent


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