dc.contributor.authorTan, Xipeng
dc.contributor.authorKok, Yihong
dc.contributor.authorTan, Yu Jun
dc.contributor.authorVastola, Guglielmo
dc.contributor.authorPei, Qing Xiang
dc.contributor.authorZhang, Gang
dc.contributor.authorZhang, Yong-Wei
dc.contributor.authorTor, Shu Beng
dc.contributor.authorLeong, Kah Fai
dc.contributor.authorChua, Chee Kai
dc.identifier.citationTan, X., Kok, Y., Tan, Y. J., Vastola, G., Pei, Q. X., Zhang, G., et al. (2015). An experimental and simulation study on build thickness dependent microstructure for electron beam melted Ti-6Al-4V. Journal of alloys and compounds, 646, 303-309.en_US
dc.description.abstractBuild thickness dependent microstructure of electron beam melted (EBM®) Ti–6Al–4V has been investigated from both experiment and simulation using four block samples with thicknesses of 1, 5, 10 and 20 mm. We observe a mixed microstructure of alternate α/β with some α′ martensite inside the 1 mm-thick sample. By contrast, only the alternate α/β microstructure with both colony and basket-weave morphologies occurs inside the 5 mm-, 10 mm- and 20 mm-thick samples. It is found that β spacing is constantly increased with the build thickness, leading to an obvious decrease in microhardness. Finite element method (FEM) simulations show that cooling rates and thermal profiles during EBM process are favorable for the formation of martensite. Moreover, full-scale FEM simulations reveal that the average temperature inside the samples is higher as the build thickness increases. It suggests that martensitic decomposition is faster in thicker samples, which is in good agreement with the experimental observations.en_US
dc.relation.ispartofseriesJournal of alloys and compoundsen_US
dc.rights© 2015 Elsevier B.V. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of alloys and compounds, Elsevier B.V. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [http://dx.doi.org/10.1016/j.jallcom.2015.05.178].en_US
dc.subjectDRNTU::Engineering::Materials::Metallic materials::Alloys
dc.titleAn experimental and simulation study on build thickness dependent microstructure for electron beam melted Ti-6Al-4Ven_US
dc.typeJournal Article
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen_US
dc.description.versionAccepted version

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