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Deformation field variations in equal channel angular extrusion due to back pressure
journal contribution
posted on 2008-05-01, 00:00 authored by A Hasani, Rimma LapovokRimma Lapovok, L S Tóth, A MolinariFlow lines were analysed in aluminium alloy 6061 during equal channel angular extrusion (ECAE) in a 90° die with and without the application of back pressure during pressing. The lines appeared much more rounded when a back pressure was applied compared to the case of conventional ECAE testing. With the help of an analytic flow function, the deformation field was obtained. It is shown that back pressure slightly lowers the total strain, strongly increases the size of the plastic zone and significantly reduces the plastic strain rate.
History
Journal
Scripta materialiaVolume
58Issue
9Pagination
771 - 774Publisher
ElsevierLocation
Amsterdam, The NetherlandsPublisher DOI
ISSN
1359-6462Language
engPublication classification
C Journal article; C1.1 Refereed article in a scholarly journalCopyright notice
2008, ElsevierUsage metrics
Categories
Keywords
Science & TechnologyTechnologyNanoscience & NanotechnologyMaterials Science, MultidisciplinaryMetallurgy & Metallurgical EngineeringScience & Technology - Other TopicsMaterials ScienceECAEflow linesback pressureplastic deformationTEXTURE DEVELOPMENTCOPPERMICROSTRUCTUREEVOLUTIONALUMINUMFLOWMechanical EngineeringCondensed Matter Physics
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