The effect of strain rate and anisotropy on the formability and mechanical behaviour of aluminium alloy 2024-T3

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dc.contributor.authorHarant, Martincs
dc.contributor.authorVerleysen, Patriciacs
dc.contributor.authorForejt, Milancs
dc.contributor.authorKolomý, Štěpáncs
dc.coverage.issue1cs
dc.coverage.volume14cs
dc.date.accessioned2024-05-10T12:45:53Z
dc.date.available2024-05-10T12:45:53Z
dc.date.issued2024-01-13cs
dc.description.abstractThe present study focuses on the mechanical behaviour and formability of the aluminium alloy 2024-T3 in sheet form with a thickness of 0.8 mm. For this purpose, tensile tests at quasi-static and intermediate strain rates were performed using a universal testing machine, and high strain rate experiments were performed using a split Hopkinson tension bar (SHTB) facility. The material’s anisotropy was investigated by considering seven different specimen orientations relative to the rolling direction. Digital image correlation (DIC) was used to measure specimen deformation. Based on the true stress–strain curves, the alloy exhibited negative strain rate sensitivity (NSRS). Dynamic strain aging (DSA) was investigated as a possible cause. However, neither the strain distribution nor the stress–strain curves gave further indications of the occurrence of DSA. A higher deformation capacity was observed in the high strain rate experiments. The alloy displayed anisotropic mechanical properties. Values of the Lankford coefficient lower than 1, more specifically, varying between 0.45 and 0.87 depending on specimen orientations and strain rate, were found. The hardening exponent was not significantly dependent on specimen orientation and only moderately affected by strain rate. An average value of 0.183 was observed for specimens tested at a quasi-static strain rate. Scanning electron microscopy (SEM) revealed a typical ductile fracture morphology with fine dimples. Dimple sizes were hardly affected by specimen orientation and strain rate.en
dc.formattextcs
dc.format.extent1-13cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMetals. 2024, vol. 14, issue 1, p. 1-13.en
dc.identifier.doi10.3390/met14010098cs
dc.identifier.issn2075-4701cs
dc.identifier.orcid0000-0003-4737-7369cs
dc.identifier.orcid0000-0001-8143-692Xcs
dc.identifier.orcid0000-0003-3781-692Xcs
dc.identifier.other186837cs
dc.identifier.scopus6505952874cs
dc.identifier.urihttps://hdl.handle.net/11012/245479
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMetalscs
dc.relation.urihttps://www.mdpi.com/2075-4701/14/1/98cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2075-4701/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subject2024-T3en
dc.subjectaluminium alloyen
dc.subjecthigh strain ratesen
dc.subjectanisotropyen
dc.subjectmechanical behaviouren
dc.titleThe effect of strain rate and anisotropy on the formability and mechanical behaviour of aluminium alloy 2024-T3en
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-186837en
sync.item.dbtypeVAVen
sync.item.insts2024.05.10 14:45:53en
sync.item.modts2024.05.10 14:13:31en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav strojírenské technologiecs
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