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Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/27149
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dc.contributor.authorGhorbani, HR-
dc.contributor.authorKermanpur, A-
dc.contributor.authorRezaeian, A-
dc.contributor.authorSadeghi, F-
dc.contributor.authorSiahboumi, AA-
dc.date.accessioned2023-09-09T07:48:09Z-
dc.date.available2023-04-20-
dc.date.available2023-09-09T07:48:09Z-
dc.date.issued2023-04-20-
dc.identifierORCID iDs: Ahmad Kermanpur https://orcid.org/0000-0001-9339-0180; Fazlollah Sadeghi https://orcid.org/0000-0002-8662-4054-
dc.identifier.citationGhorbani, H.R. et al. (2023) 'Solidification behavior and microstructural features of the cast and HIPed N-bearing Ti–48Al–2Cr–2Nb intermetallic alloys', Journal of Materials Research and Technology, 24, pp. 5215 - 5234. doi: 10.1016/j.jmrt.2023.04.138.en_US
dc.identifier.issn2238-7854-
dc.identifier.urihttps://bura.brunel.ac.uk/handle/2438/27149-
dc.description.abstractCopyright © 2023 The Author(s). Effect of N addition (0.5, 1, and 2 at. %) on solidification behavior and microstructural features of the cast and hot isostatically pressed (HIPed) Ti–48Al–2Cr–2Nb (4822) intermetallic alloy was investigated. Alloys were fabricated using vacuum arc re-melting followed by HIPing. The results showed that N addition changes the primary β phase dendrites to α phase. The morphological uniformity of the as-cast microstructures was notably increased by N addition. In addition, N addition beyond its solubility limit led to the formation of primary Ti2AlN precipitates located within lamellar colonies. A possible mechanism for nucleation of the Ti2AlN precipitates is proposed. Furthermore, N addition caused much more microstructure stability during HIPing. Although a duplex structure was formed after HIPing in the 4822 alloy, N addition decreased the formation of this structure. Moreover, highly extended network of secondary Ti2AlN precipitates were formed in almost all of (α2+γ) lamellas interfaces in the N-bearing alloys.en_US
dc.description.sponsorshipIran National Science Foundation (research project no. 98006118).en_US
dc.format.extent5215 - 5234-
dc.format.mediumPrint-Electronic-
dc.languageEnglish-
dc.language.isoen_USen_US
dc.publisherElsevieren_US
dc.rightsCopyright © 2023 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/).-
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/-
dc.subjecttitanium aluminideen_US
dc.subjectTi–48Al–2Cr–2Nben_US
dc.subjectnitrogenen_US
dc.subjectTi2AlN precipitatesen_US
dc.subjectsolidificationen_US
dc.subjecthot isostatic pressingen_US
dc.titleSolidification behavior and microstructural features of the cast and HIPed N-bearing Ti–48Al–2Cr–2Nb intermetallic alloysen_US
dc.typeArticleen_US
dc.identifier.doihttps://doi.org/10.1016/j.jmrt.2023.04.138-
dc.relation.isPartOfJournal of Materials Research and Technology-
pubs.publication-statusPublished-
pubs.volume24-
dc.identifier.eissn2214-0697-
dc.rights.holderThe Author(s)-
Appears in Collections:Brunel Centre for Advanced Solidification Technology (BCAST)

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