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The effect of grain refinement by warm equal channel angular extrusion on room temperature twinning in magnesium alloy ZK60
journal contribution
posted on 2005-04-01, 00:00 authored by Rimma LapovokRimma Lapovok, P F Thomson, R Cottam, Y EstrinThe effect of the grain structure produced by warm equal channel angular extrusion (ECAE) on twinning under subsequent room temperature deformation of magnesium alloy ZK60 was investigated. It was shown that a bi-modal grain structure, characteristics of which are determined by the ECAE temperature and the number of passes, has a strong effect on the tendency to room temperature twinning. The highest density of twins generated during room temperature deformation was found in material pre-strained by ECAE at 300°C that exhibited a uniform recrystallised grain structure with an average grain size large enough for twinning to occur.
History
Journal
Journal of materials scienceVolume
40Issue
7Pagination
1699 - 1708Publisher
Kluwer Academic PublishersLocation
[Dordrecht, The Netherlands]Publisher DOI
ISSN
0022-2461eISSN
1573-4803Language
engPublication classification
C1.1 Refereed article in a scholarly journalCopyright notice
2005, Springer Science + Business MediaUsage metrics
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