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Study of the microstructure, tensile properties and hardness of AZ61 magnesium alloy subjected to severe plastic deformation

dc.contributor.authorHilšer, Ondřej
dc.contributor.authorRusz, Stanislav
dc.contributor.authorSzkandera, Pavel
dc.contributor.authorČížek, Lubomír
dc.contributor.authorKraus, Martin
dc.contributor.authorDžugan, Ján
dc.contributor.authorMaziarz, Wojciech
dc.date.accessioned2018-11-16T09:03:10Z
dc.date.available2018-11-16T09:03:10Z
dc.date.issued2018
dc.identifier.citationMetals. 2018, vol. 8, issue 10, art. no. 776.cs
dc.identifier.issn2075-4701
dc.identifier.urihttp://hdl.handle.net/10084/133153
dc.description.abstractHot extruded (EX) AZ61 magnesium alloy was processed by the twist channel angular pressing (TCAP) method, which combines equal channel angular pressing (ECAP) and twist extrusion (TE) processes and significantly improves the efficiency of the grain refinement process. Both the initial hot extruded AZ61 alloy and the alloy after completion of TCAP processing were examined by using optical microscopy (OM), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and electron backscatter diffraction (EBSD) and their corresponding micro-tensile testing (M-TT) and hardness testing at room temperature. The results showed that the microstructure of hot extruded alloy was refined well by TCAP due to dynamic recrystallization (DRX) caused by TCAP. The tensile properties, investigated by micro-tensile testing (M-TT), of the AZ61 alloy were significantly improved due to refined microstructure. The highest tensile properties including YS of 240.8 MPa, UTS of 343.6 MPa and elongation of 21.4% of the fine-grained alloy with average grain size below 1.5 mu m was obtained after the third TCAP pass at 200 degrees C using the processing route B-c.cs
dc.format.extent6151982 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofseriesMetalscs
dc.relation.urihttp://doi.org/10.3390/met8100776cs
dc.rights© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectsevere plastic deformationcs
dc.subjectECAPcs
dc.subjecttwist extrusioncs
dc.subjecthot extruded AZ61cs
dc.subjectstructurecs
dc.subjecttensile propertiescs
dc.subjecthardnesscs
dc.titleStudy of the microstructure, tensile properties and hardness of AZ61 magnesium alloy subjected to severe plastic deformationcs
dc.typearticlecs
dc.identifier.doi10.3390/met8100776
dc.rights.accessopenAccesscs
dc.type.versionpublishedVersioncs
dc.type.statusPeer-reviewedcs
dc.description.sourceWeb of Sciencecs
dc.description.volume8cs
dc.description.issue10cs
dc.description.firstpageart. no. 776cs
dc.identifier.wos000448658700040


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© 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.
Kromě případů, kde je uvedeno jinak, licence tohoto záznamu je © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.