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Browsing by Subject "Laser metal deposition"

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Behaviour of laser metal deposited Ti6Al4V/ Cu composites in Hank’s solution in terms of biocompatibility properties

Author: Erinosho, MF ; Akinlabi, ET ; Pityana, Sisa L Date: 2016 Ti6Al4V alloy is a well-known material for biomedical application due to the very excellent corrosion resistance it possessed. Cu has an excellent antimicrobial property and stabilizes the immune system of the body activities. In this present ... Read more
Characterization of laser metal deposited 316L stainless steel

Author: Bayode, A ; Akinlabi, ET ; Pityana, Sisa L Date: Jun 2016 Laser metal deposition (LMD) is an innovative manufacturing technique that uses laser to melt powders to fabricate fully dense components layer by layer. It is capable of processing different metallic powders and can also be used for consolidating ... Read more
Effect of heat treatment temperature on the microstructure and microhardness of TiC/Ti6Al4V composite manufactured with laser metal deposition

Author: Kgoahla, Reneilwe M ; Lekoadi, Paul M ; Masina, Bathusile N Date: Nov 2023 This study presented the investigation of the influence of post heat treatment temperature on the microstructure and hardness of TiC/Ti6Al4V composite manufactured with laser metal deposition. Heat treatment was performed to improve the ... Read more
Effect of Laser Power on Material Efficiency, Layer Height and Width of Laser Metal Deposited Ti6Al4V

Author: Mahamood, RM ; Akinlabi, ET ; Shukla, M ; Pityana, Sisa L Date: Oct 2012 This paper reports the effect of laser power on the optimum utilization of the powder material, the layer height and the width of the laser Metal Deposited Ti6Al4V. The Ti6Al4V powder was deposited on Ti6Al4V substrate using an Nd: YAG laser ... Read more
Effect of powder density variation on premixed Ti-6Al-4V and Cu composites during laser metal deposition

Author: Erinosho, MF ; Akinlabi, ET ; Pityana, Sisa L Date: May 2016 This paper reports the effect of powder density variation on the premixed Ti-6Al-4V/Cu and Ti-6A-4V/2Cu Composites. Two sets of experiment were conducted in this study. Five deposits each were made for the two premixed composites. Laser powers ... Read more
Effect of scanning speed and powder flow rate on the evolving properties of laser metal deposited Ti-6Al-4V/Cu composites

Author: Erinosho, MF ; Akinlabi, ET ; Pityana, Sisa L Date: 2016 In laser metal deposition (LMD), good bonding between two similar or dissimilar materials can be achieved if the interrelationships between the processing parameters are well understood. LMD was conducted by varying the scanning speed and ... Read more
Effect of scanning speed on laser deposited 17-4PH stainless steel

Author: Bayode, A ; Akinlabi, ET ; Pityana, Sisa L ; Shongwe, MB Date: Feb 2017 Laser metal deposition (LMD) is one of the additive manufacturing technologies that is used in the production of fully dense parts layer by layer. This innovative manufacturing process has the potential to reduce the weight, time and cost of ... Read more
Effects of energy density on the microstructure evolution of TiC/Ti6Al4V-ELI metal composite fabricated with laser metal deposition

Author: Ramasobane, P ; Mashinini, MP ; Masina, Bathusile N Date: Nov 2022 This study investigated the microstructural evolution of Ti6Al4V-ELI reinforced with TiC, fabricated via in-situ laser metal deposition technique. The 3.85% volume fraction TiC/Ti6Al4V-ELI metal composite samples were fabricated at two different ... Read more
Evaluation of hatch distance and powder feed rate effects in TI-6AL-4V alloy developed by LMD technique

Author: Sibisi, PN ; Popoola, API ; Arthur, Nana KK ; Kubjane, SM ; Ngoveni, AS ; Kanyane, LR Date: Nov 2018 Laser metal deposition provides various benefits over traditional manufacturing, and has since become the research hotspot, as demand for advanced manufacturing persists. The effects of process parameter variation on structural integrity and ... Read more
Exploration of microstructure and wear behaviour of laser metal deposited Ti6Al4V/Cu composites

Author: Erinosho, MF ; Akinlabi, ET ; Pityana, Sisa L Date: 2016 This paper presents the explorations conducted on the evolving microstructures and the dry sliding wear of the laser deposited Ti6Al4V/Cu composites. The laser powers between 1300 W and 1600 W; scanning speeds between 0.30 and 0.72 m/min were ... Read more
Fabrication of stainless steel based FGM by laser metal deposition

Author: Bayode, A ; Akinlabi, ET ; Pityana, Sisa L Date: Apr 2018 Recent advancement in materials processing has resulted in the evolution of advance composite known as Functionally Graded Materials (FGMs). FGMs are multi-layered structures with composition and/or microstructure that vary spatially across ... Read more
Fabrication of Ti10Fe5Si5Cr3Nb composite coatings on Ti-6Al-4V alloy using laser cladding technique

Author: Malatjia, N ; Popoola, API ; Pityana, Sisa L ; Lengopeng, T Date: Jun 2021 Ti10Fe5Si5Cr3Nb composite coatings were fabricated using laser cladding technique. Laser power was varied from 800W to 1200W while the scanning speed was kept constant at 1.5 m/min. The microstructural analysis of the samples was conducted ... Read more
Global research engagement by undergraduates and its impact: Laser metal deposition studies in us - South Africa collaboration

Author: Kumpaty, S ; Paoli, E ; Akinlabi, E ; Ziemer, A ; Pityana, Sisa L Date: Nov 2017 This paper presents the follow-up work of research conducted by Milwaukee School of Engineering senior undergraduate students in South Africa under the second year of the Research Experiences for Undergraduates grant EEC-1460183 sponsored by ... Read more
Influence of laser power on the deposition Ti64l4V/W composite

Author: Ndou, N ; Akinlabi, ET ; Pityana, Sisa L Date: Oct 2016 The influence of laser power on the deposited of Ti64l4V/W composites was investigated. The energy flow rates were varied while every single other parameter were kept at a steady. The evolving microstructure and the hardness of the composites ... Read more
Investigation of the microstructure evolution of TiC/Ti-6Al-4V composite manufactured by laser melting deposition

Author: Nomqonde, BH ; Mashinini, PM ; Lekoadi, Paul M ; Masina, Bathusile N Date: Nov 2022 This study investigated the microstructure evolution of the TiC/Ti-6Al-4V matrix composite produced using a 1073 nm continuous wave (CW), IPG Ytterbium fibre laser. The influence of thermal gradient, overlap, and re-melting of the previous ... Read more
Laser enabled refurbishment and performance enhancement of industrial components

Author: Van Rooyen, Corney ; Theron, Maritha ; Burger, HP Date: Sep 2011 This presentation highlights the case for refurbishment/performance enhancement of industrial components in South Africa. There is potential to improve operational efficiency and reduce operating cost provided that techno-economically viable ... Read more
Laser metal deposition of titanium aluminide composites: A review

Author: Abdulrahman, KO ; Akinlabi, ET ; Mahamood, RM ; Pityana, Sisa L ; Tlotleng, Monnamme Date: 2018 Development of additive manufacturing (AM) from three dimensional printers with ability of producing parts having no need for tooling continue to wax stronger in the manufacturing field. Laser metal deposition, a technique in AM is usually ... Read more
Laser surface modification of Ti6Al4V-Cu for improved microhardness and wear resistance properties

Author: Erinosho, MF ; Akinlabi, ET ; Pityana, Sisa L ; Owolabi, G Date: Jun 2017 To modify the properties of Ti6Al4V alloy, Cu has been added to host an antimicrobial effect in the revised alloy for marine application. The Laser Metal Deposition (LMD) process on the Ti6Al4V alloy and Cu was been investigated for surface ... Read more
Material efficiency of laser metal deposited Ti6Al4V: Effect of laser power

Author: Mahamood, RM ; Akinlabi, ET ; Shukla, M ; Pityana, Sisa L Date: Feb 2013 The economy of using Laser Metal Deposition (LMD) process in the manufacturing of aerospace parts depends on the right processing parameters. LMD is an additive manufacturing technology capable of producing complex parts directly from the CAD ... Read more
Microstructure and microhardness of 17-4 PH stainless steel made by laser metal deposition

Author: Bayode, A ; Pityana, Sisa L ; Akinlabi, ET Date: Oct 2016 Laser metal deposition (LMD) is an additive manufacturing process. Unlike conventional manufacturing process which is subtractive, LMD produces part layer by layer from the ground up and has been used to fabricate fully dense components using ... Read more

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