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dc.contributor.authorKong, Fantao
dc.contributor.authorXu, Xingchen
dc.contributor.authorChen, Yuyong
dc.contributor.authorZhang, Deliang
dc.date.accessioned2011-05-13T04:24:19Z
dc.date.available2011-05-13T04:24:19Z
dc.date.issued2011
dc.identifier.citationKong, F., Xu, X., Chen, Y. & Zhang, D. (2011). Microstructure and mechanical properties of large size as-cast Ti-43Al-9V-0.2Y (at.%) alloy ingot from brim to centre. Materials & Design, available online 4 May 2011.en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/5339
dc.description.abstractA Ti-43Al-9V-0.2Y (at.%) alloy ingot with the size of Ф160×400mm was prepared by vacuum arc remelting (VAR). The microstructure of the as-cast Ti-43Al-9V-0.2Y alloy was composed of B2/α₂/γ lamellar colonies and massive B2 and γ phases which were distributed along the boundaries of these lamellar colonies in the form of equiaxed grains. Based on the grain size variation along the radius direction of the ingot, the ingot could be divided into four ring regions from brim to centre. It has been understood that the grain size variation between these four regions was due to the interplay of the effects of the cooling rate and the yttrium content on solidified microstructures in these regions. Mechanical testing of the samples cut from these four regions showed that there existed a clear correlation between the yield strength and the average grain sizes of the four ring regions, which approximately conformed to a Hall-Petch relationship.en_NZ
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.publisherElsevieren_NZ
dc.rightsThis is an author’s accepted version of an article published in the journal: Materials & Design. © 2011 Elsevier.en_NZ
dc.subjectIntermetallicsen_NZ
dc.subjectcastingen_NZ
dc.subjectmicrostructureen_NZ
dc.titleMicrostructure and mechanical properties of large size as-cast Ti-43Al-9V-0.2Y (at.%) alloy ingot from brim to centreen_NZ
dc.typeJournal Articleen_NZ
dc.identifier.doi10.1016/j.matdes.2011.04.053en_NZ
dc.relation.isPartOfMaterials and Designen_NZ
pubs.begin-page1en_NZ
pubs.elements-id35935
pubs.end-page24en_NZ
pubs.volumeonlineen_NZ
uow.identifier.article-noCen_NZ


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