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Mechanical behavior of periodical microstructure induced by friction stir welding on Al–Cu–Li 2050 alloy

hal.structure.identifierLaboratoire brestois de mécanique et des systèmes [LBMS]
hal.structure.identifierMMA
dc.contributor.authorDHONDT, Matthieu
dc.contributor.authorAUBERT, Isabelle
IDREF: 153371900
dc.contributor.authorSAINTIER, Nicolas
dc.contributor.authorOLIVE, Jean-Marc
dc.date.accessioned2021-05-14T09:40:00Z
dc.date.available2021-05-14T09:40:00Z
dc.date.issued2015-09
dc.identifier.issn0921-5093
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/76542
dc.description.abstractEnMechanical 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.language.isoen
dc.publisherElsevier
dc.subjectCrystal plasticity
dc.subjectSimulation
dc.subjectAluminum alloy
dc.subjectFriction stir welding
dc.subjectMechanical behavior
dc.subjectMicrostructure
dc.title.enMechanical behavior of periodical microstructure induced by friction stir welding on Al–Cu–Li 2050 alloy
dc.typeArticle de revue
dc.identifier.doi10.1016/j.msea.2015.05.072
dc.subject.halPhysique [physics]
bordeaux.journalMaterials Science and Engineering: A
bordeaux.page69-75
bordeaux.volume644
bordeaux.hal.laboratoriesInstitut de Mécanique et d’Ingénierie de Bordeaux (I2M) - UMR 5295*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
bordeaux.institutionINRAE
bordeaux.institutionArts et Métiers
bordeaux.peerReviewedoui
hal.identifierhal-02334039
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02334039v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Materials%20Science%20and%20Engineering:%20A&rft.date=2015-09&rft.volume=644&rft.spage=69-75&rft.epage=69-75&rft.eissn=0921-5093&rft.issn=0921-5093&rft.au=DHONDT,%20Matthieu&AUBERT,%20Isabelle&SAINTIER,%20Nicolas&OLIVE,%20Jean-Marc&rft.genre=article


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