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Show simple item record Phala, MF Popoola, API Tlotleng, Monnamme Pityana, Sisa L 2019-03-23T13:38:01Z 2019-03-23T13:38:01Z 2018
dc.identifier.citation Phala, M.F. et al. 2018. Effect of laser scanning speed on surface properties of Ti-Si laser clad intermetallic coatings fabricated on Ti-6Al-4V alloy. International Journal of Microstructure and Materials Properties, vol. 13(5): en_US
dc.identifier.issn 1741-8410
dc.identifier.issn 1741-8429
dc.description Copyright: 2018 Inderscience. Due to copyright restrictions, the attached PDF file contains the accepted version of the published article. For access to the published version, please consult the publisher's website: en_US
dc.description.abstract A binary Ti-Si (1 : 1) alloy coating was fabricated on Ti-6Al-4V alloy using laser cladding technique where Neodymium yttrium aluminium garnet laser was utilised. Micro-atomised powders of Ti and Si were used for deposition of multi-track clad coatings utilising power of 1.5 kW and a varied speed of 1.2 m/min, 1.6 m/min and 2.0 m/min. Scanning electron microscope coupled with energy dispersive spectrometer was used for microstructural characterisation and elemental analysis while a digital light microscope was used for optical imaging and coating thickness measurements. Phase identification was conducted using X-ray diffraction analyser and transverse microhardness evaluated at 100 gf for 10 s dwell time was achieved with the use of a Vickers hardness machine. The laser fabricated coatings were found to exhibit a decrease in grain size with an increase in the laser scanning speed. The microstructure of the coatings ranged from irregular refined grains, faceted grains and lamellar eutectic network of TiSS + Ti5Si3. The hardness of the coatings exhibited Ti, Si, TiS2 and Ti5Si3 phases averaged a 247.4% increase with maximum hardness recorded at 1.2 m/min scanning speed. en_US
dc.language.iso en en_US
dc.publisher Inderscience Enterprises Ltd. en_US
dc.relation.ispartofseries Worklist;22083
dc.subject Laser cladding en_US
dc.subject Titanium en_US
dc.subject Ti5Si3 phase en_US
dc.subject Scanning speed en_US
dc.subject Coating thickness en_US
dc.subject Microhardness en_US
dc.subject Microstructure en_US
dc.subject HAZ en_US
dc.subject Heat affected zone en_US
dc.subject Substrate en_US
dc.subject Grain structure en_US
dc.title Effect of laser scanning speed on surface properties of Ti-Si laser clad intermetallic coatings fabricated on Ti-6Al-4V alloy en_US
dc.type Article en_US

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