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dc.contributor.authorThomesen, Susanne
dc.contributor.authorHopperstad, Odd Sture
dc.contributor.authorMyhr, Ole Runar
dc.contributor.authorBørvik, Tore
dc.description.abstractIn this study, the plastic flow and ductile fracture of three 6000-series aluminium alloys commonly used for crash components in the automotive industry are characterised experimentally and the observations are related to microstructural features. The three alloys are used in the cast and homogenised condition after artificial ageing to temper T6 to ensure isotropic behaviour. Tension tests on smooth and notched axisymmetric specimens are carried out to reveal the stress–strain behaviour, ductility and fracture mechanisms of the materials for different stress states. Through the use of optical and scanning electron microscopes, the initial microstructure of the alloys and the fracture surfaces of the tension test specimens are investigated. The work-hardening of the alloys is analysed up to large strains. Whereas the ductility of two of the alloys falls into the trend of previous experimental data on 6000-series aluminium alloys, where the strain to failure decreases linearly with increasing yield stress, the third alloy stands out by combining high strength with high ductility. The excellent properties of the latter alloy are assumed to be due to a favourable size distribution of constituent particles.en_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleInfluence of stress state on plastic flow and ductile fracture of three 6000-series aluminium alloysen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.source.journalMaterials Science & Engineering: Aen_US
dc.description.localcode/© 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (

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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal