Show simple item record

dc.contributor.authorBommareddy, A.
dc.contributor.authorQuadir, Md Zakaria
dc.contributor.authorFerry, M.
dc.date.accessioned2017-04-28T13:59:33Z
dc.date.available2017-04-28T13:59:33Z
dc.date.created2017-04-28T09:06:08Z
dc.date.issued2012
dc.identifier.citationBommareddy, A. and Quadir, M.Z. and Ferry, M. 2012. Time and temperature regime of continuous grain coarsening in an ECAP-processed Al(0.1 wt.% Sc) alloy. Journal of Alloys and Compounds. 527: pp. 145-151.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/52681
dc.identifier.doi10.1016/j.jallcom.2012.02.181
dc.description.abstract

An equiaxed, submicron grain size distribution was generated in an Al(0.1 wt.% Sc) alloy by processing through equal channel angular pressing followed by a low temperature pre-ageing heat treatment. The alloy was subsequently annealed for various times at 300, 350, 400 and 450 °C for investigating the thermal stability of the deformation microstructure. It was found that up to 400 °C, the submicron grain structure coarsens slowly and uniformly by a process of continuous recrystallization. Within this temperature range, the uniform dispersion of nano-sized Al 3Sc particles generated by the pre-ageing treatment substantially hinders grain coarsening by Zener pinning of the (sub)grain boundaries. At the higher annealing temperature of 450 °C, certain grains were found to grow discontinuously thereby generating a mixed microstructure consisting of both fine and coarse grains. The data in this study was combined with recent data for a higher solute Al(0.3 wt.% Sc) alloy for furthering our understanding of the time and temperature range in which this family of alloys is resistant to rapid, discontinuous grain coarsening (recrystallization). © 2011 Elsevier Ltd. All rights reserved.

dc.publisherElsevier B.V.
dc.titleTime and temperature regime of continuous grain coarsening in an ECAP-processed Al(0.1 wt.% Sc) alloy
dc.typeJournal Article
dcterms.source.volume527
dcterms.source.startPage145
dcterms.source.endPage151
dcterms.source.issn0925-8388
dcterms.source.titleJournal of Alloys and Compounds
curtin.departmentJohn de Laeter Centre
curtin.accessStatusFulltext not available


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record