Activation energy in hot forming of selected Fe-40at.%Al type intermetallic compounds

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Show simple item record Schindler, Ivo Kawulok, Rostislav Kulveitová, Hana Kratochvíl, Petr Šíma, Vladimír Knapiński, Marcin 2012-12-03T12:52:18Z 2012-12-03T12:52:18Z 2012
dc.identifier.citation Acta physica polonica A. 2012, vol. 122, issue 3, p. 610-613. cs
dc.identifier.issn 0587-4246
dc.identifier.issn 1898-794X
dc.description.abstract Magnesium alloys based on Mg Al Zn system are very attractive materials in many industries due to their speci c properties. One of common forming manners suitable for this kind of material is the application of severe plastic deformation method. This paper is focused on the deformation behavior of AZ63 alloy at equal channel angular pressing process in the temperature range of 250 320◦C. For this purpose nite element analysis was used. Main attention was devoted to the in uence of processing parameters on the material ow. Among other, changes of the ow during equal channel angular pressing in chosen regions of the pressed samples were monitored. As variables, temperature, friction coe cient, strain rate, φ-angle or back pressure application were chosen. The comparison of the material ow lines at di erent conditions shows the a ecting of material ow. There are obvious considerable di erences between regions adjacent to the inner radius and those adjacent to the outer radius. For example in the case μ = 0 the dead zone is delimited by the angle = 36◦, while in the case of friction given by the coe cient μ = 0.04, the value of the angle was = 26.5◦. cs
dc.format.extent 4303619 bytes cs
dc.format.mimetype application/pdf cs
dc.language.iso en cs
dc.publisher Polska Akademia Nauk. Instytut fizyki cs
dc.relation.ispartofseries Acta physica polonica A cs
dc.relation.uri cs
dc.title Activation energy in hot forming of selected Fe-40at.%Al type intermetallic compounds cs
dc.type article cs
dc.identifier.location Není ve fondu ÚK cs
dc.rights.access restrictedAccess cs
dc.type.version publishedVersion cs
dc.type.status Peer-reviewed cs
dc.description.source Web of Science cs
dc.description.volume 122 cs
dc.description.issue 3 cs
dc.description.lastpage 613 cs
dc.description.firstpage 610 cs
dc.identifier.wos 000309019200046

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