Mechanical behavior of periodical microstructure induced by friction stir welding on Al–Cu–Li 2050 alloy
dc.contributor.author | DHONDT, Matthieu |
dc.contributor.author | AUBERT, Isabelle |
dc.contributor.author | OLIVE, Jean-Marc |
dc.contributor.author | SAINTIER, Nicolas |
dc.date.accessioned | 2015 |
dc.date.available | 2017 |
dc.date.issued | 2015 |
dc.date.submitted | 2015 |
dc.identifier.issn | 0921-5093 |
dc.identifier.uri | http://hdl.handle.net/10985/10494 |
dc.description.abstract | Mechanical 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.sponsorship | This work was financially supported by the ANR MatetPro program ANR-08-MAPR-0020-05 (Coralis project, Corrosion of Aluminium Lithium Structures). |
dc.language.iso | en |
dc.publisher | Elsevier |
dc.rights | Post-print |
dc.subject | Aluminum alloy |
dc.subject | Friction stir welding |
dc.subject | Mechanical behavior |
dc.subject | Microstructure |
dc.subject | Crystal plasticity |
dc.subject | Simulation |
dc.title | Mechanical behavior of periodical microstructure induced by friction stir welding on Al–Cu–Li 2050 alloy |
ensam.embargo.terms | 2 years |
dc.identifier.doi | 10.1016/j.msea.2015.05.072 |
dc.typdoc | Article dans une revue avec comité de lecture |
dc.localisation | Centre de Bordeaux-Talence |
dc.localisation | Centre de Lille |
dc.subject.hal | Sciences de l'ingénieur: Matériaux |
dc.subject.hal | Sciences de l'ingénieur: Mécanique: Matériaux et structures en mécanique |
dc.subject.hal | Sciences de l'ingénieur: Mécanique: Mécanique des matériaux |
dc.subject.hal | Sciences de l'ingénieur: Mécanique: Mécanique des structures |
ensam.audience | Internationale |
ensam.page | 69-75 |
ensam.journal | Materials Science and Engineering: A |
ensam.volume | 644 |
ensam.peerReviewing | Oui |
hal.status | unsent |