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dc.contributor.authorPeron, Mirco
dc.contributor.authorbertolini, rachele
dc.contributor.authorghiotti, andrea
dc.contributor.authorTorgersen, Jan
dc.contributor.authorbruschi, stefania
dc.contributor.authorBerto, Filippo
dc.date.accessioned2020-03-13T10:42:36Z
dc.date.available2020-03-13T10:42:36Z
dc.date.created2019-12-02T18:00:34Z
dc.date.issued2020
dc.identifier.issn1751-6161
dc.identifier.urihttp://hdl.handle.net/11250/2646698
dc.description.abstractMagnesium and its alloys have recently attracted great attention as potential materials for the manufacture of biodegradable implants. Unfortunately, their inadequate resistance to the simultaneous action of corrosion and mechanical stresses in the human body have hampered their use as implant materials. This work aims at evaluating the Stress Corrosion Cracking (SCC) susceptibility of the AZ31 Mg alloy after being machined under cryogenic cooling. The SCC behaviour was evaluated by means of Slow Strain Rate Tests (SSRTs) in Simulated Body Fluid (SBF) at 37 °C. Prior to testing, a full characterization of the machined surface integrity, including microstructural observations, residual stress, nano-hardness measurements and surface texture analysis was carried out together with the assessment of the corrosion properties through potentiodynamic polarization curves. In addition, the morphology of the fracture surfaces after SSRTs was analysed by means of 3D optical profiler and Scanning Electron Microscopy (SEM). The improved corrosion resistance due to the increased extension of the nano-surface layer and to the compressive residual stresses represents the reason of the reduced SCC susceptibility of cryogenically machined AZ31 samples as compared to dry machined ones.nb_NO
dc.language.isoengnb_NO
dc.publisherElseviernb_NO
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/deed.no*
dc.titleEnhancement of stress corrosion cracking of AZ31 magnesium alloy in simulated body fluid thanks to cryogenic machiningnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.journalJournal of The Mechanical Behavior of Biomedical Materialsnb_NO
dc.identifier.doihttp://dx.doi.org/10.1016/j.jmbbm.2019.103429
dc.identifier.cristin1755692
dc.description.localcode© 2019. This is the authors’ accepted and refereed manuscript to the article. Locked until 11.9.2021 due to copyright restrictions. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/nb_NO
cristin.unitcode194,64,92,0
cristin.unitnameInstitutt for maskinteknikk og produksjon
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
Med mindre annet er angitt, så er denne innførselen lisensiert som Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal