Influence of heat treatments on the microstructure and tensile behaviour of selective laser melting-produced TI-6AL-4V parts

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dc.contributor.authorTer Haar, Gerrit Matthysen_ZA
dc.contributor.authorBecker, Thorstenen_ZA
dc.contributor.authorBlaine, Deborah C.en_ZA
dc.date.accessioned2016-12-12T08:58:43Z
dc.date.available2016-12-12T08:58:43Z
dc.date.issued2016
dc.descriptionCITATION: Ter Haar, G. M., Becker, T. & Blaine, D. C. 2016. Influence of heat treatments on the microstructure and tensile behaviour of selective laser melting-produced TI-6AL-4V parts. South African Journal of Industrial Engineering, 27(3):174-183, doi:10.7166/27-3-1663.
dc.descriptionThe original publication is available at http://sajie.journals.ac.za
dc.description.abstractENGLISH ABSTRACT: In industry, post-process heat treatments of Ti-6Al-4V are performed with the aim of improving its tensile behaviour. While heat treatments of wrought Ti6Al4V have been standardised (e.g., Aerospace Material Specification H-81200), heat treatments of selective laser melting (SLM)-produced Ti-6Al-4V lacks research and understanding. Significant concern exists about SLM Ti6-Al-4V’s achievable ductility attributed to its martensitic (α’) phase. In this research, heat treatments at a range of temperatures are applied to SLM-produced Ti-6Al-4V tensile samples. Microstructural analysis (both optically and through electron backscatter diffraction) was used to identify links between heat treatments and microstructure. Subsequently, uniaxial tensile tests were performed to determine the respective tensile properties of all samples. Correlations in the data show a significant loss in strength with respect to an increase in annealing temperature due to grain growth, while no noticeable trend was observed for fracture strain with regard to annealing temperatures.en_ZA
dc.description.abstractAFRIKAANSE OPSOMMING: Geen opsomming beskikbaaraf_ZA
dc.description.urihttp://sajie.journals.ac.za/pub/article/view/1663
dc.description.versionPublisher's version
dc.format.extent10 pagesen_ZA
dc.identifier.citationTer Haar, G. M., Becker, T. & Blaine, D. C. 2016. Influence of heat treatments on the microstructure and tensile behaviour of selective laser melting-produced TI-6AL-4V parts. South African Journal of Industrial Engineering, 27(3):174-183, doi:10.7166/27-3-1663
dc.identifier.issn2224-7890 (online)
dc.identifier.issn1012-277X (print)
dc.identifier.otherdoi:10.7166/27-3-1663
dc.identifier.urihttp://hdl.handle.net/10019.1/99979
dc.language.isoen_ZAen_ZA
dc.publisherSouthern African Institute for Industrial Engineeringen_ZA
dc.rights.holderAuthors retain copyrighten_ZA
dc.subjectHeat treatmentsen_ZA
dc.subjectMetal -- Microstructureen_ZA
dc.subjectLaser weldingen_ZA
dc.titleInfluence of heat treatments on the microstructure and tensile behaviour of selective laser melting-produced TI-6AL-4V partsen_ZA
dc.typeArticleen_ZA
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