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Microstructure and electrical conductivity of aluminium/steel bimetallic rods processed by severe plastic deformation
journal contribution
posted on 2016-07-01, 00:00 authored by Yuanshen Qi, Rimma Lapovok, Y EstrinEqual-channel angular pressing (ECAP) was used to fabricate Al/steel bimetallic rod for potential application in overhead transmission conductors. Bimetallic rods consisted of an austenitic stainless steel 316L core and an Al alloy 6201 cladding layer. By means of ECAP processing at 175°C, increase of mechanical strength without loss of electrical conductivity was achieved for one particular rod geometry out of three geometries tested. X-ray diffraction and transmission electron microscopy were employed to analyse how the microstructure was influenced by the number of processing passes and the bimetallic rod geometry. The co-deformation mechanism of the bimetallic rod under ECAP and accelerated dynamic ageing of Al alloy 6201 were discussed based on the microstructure characterisation results.
History
Journal
Journal of materials scienceVolume
51Issue
14Pagination
6860 - 6875Publisher
SpringerLocation
Berlin, GermanyPublisher DOI
ISSN
0022-2461eISSN
1573-4803Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2016, SpringerUsage metrics
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