Structure-property orientation relationship of a γ/α2/Ti5Si3 in as-cast Ti-45Al-2Nb-0.7Cr-0.3Si intermetallic alloy

dc.contributor.authorMathabathe, Maria Ntsoaki
dc.contributor.authorBolokang, A.S.
dc.contributor.authorGovender, G.
dc.contributor.authorMostert, Roelf Johannes
dc.contributor.authorSiyasiya, Charles Witness
dc.date.accessioned2018-07-25T06:04:43Z
dc.date.issued2018-10
dc.description.abstractStructure-property relationship of the as-cast γ-Ti-45Al-2Nb-0.7Cr-0.3Si based intermetallic alloy was examined. The phases stable at room temperature in the alloy were γ/α2/Ti5Si3, respectively; while their crystal structures were described by means of chemical formulas, Pearson's number, space groups, lattice parameters, atomic positions and occupancy numbers using a Vienna ab initio simulation package (VASP) software for materials design. Moreover, high resolution electron backscatter diffraction (HSEBSD) was used to analyse the orientation relationship of both the as-cast (β-solidifying) and heat-treated (α-solidifying) microstructural phases. The results showed that the formation of γ/α2/Ti5Si3 follows the Blackburn orientation relationship (BOR): (β-solidifying) {110}β//{0001}α and <111>β//<2‾1‾10>α, and for (α-solidifying) = (111)γ || (0001)α and <1‾10]γ || <11‾20>α.en_ZA
dc.description.departmentMaterials Science and Metallurgical Engineeringen_ZA
dc.description.embargo2019-10-15
dc.description.librarianhj2018en_ZA
dc.description.sponsorshipDepartment of Science and Technology (DST) and Council of Scientific Industrial Research (CSIR).en_ZA
dc.description.urihttp://www.elsevier.com/locate/jalcomen_ZA
dc.identifier.citationMathabathe, M.N., Bolokang, A.S., Govender, G. et al. 2018, 'Structure-property orientation relationship of a γ/α2/Ti5Si3 in as-cast Ti-45Al-2Nb-0.7Cr-0.3Si intermetallic alloy', Journal of Alloys and Compounds, vol. 765, pp. 690-699.en_ZA
dc.identifier.issn0925-8388 (print)
dc.identifier.issn1873-4669 (online)
dc.identifier.other10.1016/j.jallcom.2018.06.265
dc.identifier.urihttp://hdl.handle.net/2263/65828
dc.language.isoenen_ZA
dc.publisherElsevieren_ZA
dc.rights© 2018 Elsevier B.V. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Journal of Alloys and Compounds Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Journal of Alloys and Compounds, vol. 765, pp. 690-699, 2018. doi : 10.1016/j.jallcom.2018.06.265.en_ZA
dc.subjectBlackburn orientation relationship (BOR)en_ZA
dc.subjectStructure-property relationshipen_ZA
dc.subjectIntermetallic alloyen_ZA
dc.subjectγ/α2/Ti5Si3en_ZA
dc.subjectCrystal structuresen_ZA
dc.subjectHiigh resolution electron backscatter diffraction (HSEBSD)en_ZA
dc.subject.otherEngineering, built environment and information technology articles SDG-07
dc.subject.otherSDG-07: Affordable and clean energy
dc.subject.otherEngineering, built environment and information technology articles SDG-09
dc.subject.otherSDG-09: Industry, innovation and infrastructure
dc.subject.otherEngineering, built environment and information technology articles SDG-12
dc.subject.otherSDG-12: Responsible consumption and production
dc.subject.otherEngineering, built environment and information technology articles SDG-13
dc.subject.other
dc.titleStructure-property orientation relationship of a γ/α2/Ti5Si3 in as-cast Ti-45Al-2Nb-0.7Cr-0.3Si intermetallic alloyen_ZA
dc.typePostprint Articleen_ZA

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
Mathabathe_StructureProperty_2018.pdf
Size:
10.11 MB
Format:
Adobe Portable Document Format
Description:
Postprint Article

License bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
license.txt
Size:
1.75 KB
Format:
Item-specific license agreed upon to submission
Description: