Investigation of Metallurgical and Microhardness Properties of Titanium Alloy in Laser Metal Deposition Process

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dc.contributor.authorMahamood, R.M
dc.contributor.authorAbdulkareem, S
dc.contributor.authorAjao, K.R
dc.contributor.authorAweda, J.O
dc.date.accessioned2019-02-28T13:53:07Z
dc.date.available2019-02-28T13:53:07Z
dc.date.issued2017
dc.descriptionJournal Articlesen_US
dc.description.abstractThis paper reports on the investigation of metallurgical and microhardness properties of laser metal deposition of Titanium alloy- Ti-6Al-4V. Ti-6Al-4V substrate and Ti-6Al-4V powder (150-200 μm) both at 99.6% purity were used in this study. The input laser power varied between 0.8 and 4.0 kW while other processing parameters were kept constant. They include the scanning speed of 0.005 m/sec, powder flow of 1.44 g/min and the gas flow rate of 4 l /min. The microstructure and the microhardness were examined under the optical and scanning electron microscope. The microhardness was measured using the Vickers hardness tester. The study revealed that the layer band occurred in all the samples except those samples at very high laser powers. The microstructure of the heat affected zone is characterized with fine globular primary alpha and beta grains at low laser power and become coarse as the laser power was increased. The microhardness was found to initially increase and then decrease as the laser power was increased beyond 3 kW.en_US
dc.description.sponsorshipTertiary Education Trust Funden_US
dc.identifier.citationMahamood, R.M, Abdulkareem, S, Ajao, K.R and Aweda, J.O (2017). Investigation of Metallurgical and Microhardness Properties of Titanium Alloy in Laser Metal Deposition Process. Unilag Journal of Medicine, Science and Technology, Vol.5(2), 55-71p.en_US
dc.identifier.issn2408-5049
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/3871
dc.language.isoenen_US
dc.publisherUniversity of Lagos Press, Akokaen_US
dc.relation.ispartofseriesUniversity of lagos Journal;Vol.5(2)
dc.subjectMetal Deposition Processen_US
dc.subjectLaser poweren_US
dc.subjectMacroscopic Bandingen_US
dc.subjectMicrohardnessen_US
dc.subjectMicrostructureen_US
dc.titleInvestigation of Metallurgical and Microhardness Properties of Titanium Alloy in Laser Metal Deposition Processen_US
dc.typeArticleen_US
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Volume 5, Issue 2 , 2017