Author:Dada, A; Popoola, P; Mathe, Ntombizodwa R; Adeosun, S; Aramide, ODate:Dec 2021In an optimization study, cracks were observed in the microstructures of laser-deposited HEAs on a steel baseplate from residual stresses, thus, the optimization of crack-free microstructures was achieved by the optimization of the laser ...Read more
Author:Aramide, BP; Popoola, P; Sadiku, R; Jamiru, T; Pityana, Sisa LDate:Aug 2021Laser cladding is an additive manufacturing technology that can be utilized in surface strengthening, modification, and repair of components that are subjected to adverse working conditions. This can be accomplished by the addition of ...Read more
Author:Boloka, Tlou J; Crafford, Gerhardus J; Mokuwe, Mamuku W; Van Eden, BeatriceDate:Jan 2021Most developing countries suffer from inadequate health care facilities and a lack of medical practitioners as most of them emigrate to developed countries. The outbreak of the COVID-19 pandemic has left these countries more vulnerable to ...Read more
Author:Dada, M; Popoola, P; Mathe, Ntombizodwa R; Pityana, Sisa L; Adeosun, S; Aramide, ODate:Jun 2021Corrosion is a conservational occurrence that has a large economic impact on most metals and its alloys because it destroys and deteriorates most materials by an electrochemical process through the reaction of these materials with the ...Read more
Author:Khomenko, MD; Makoana, Nkutwane W; Pityana, Sisa L; Mirzade, FKHDate:Jul 2021A new coupled heat transfer and solidification kinetics model is developed for the optimization of microstructure during laser additive manufacturing applications. The Johnson–Mehl–Avrami–Kolmogorov equation is applied in a self-consistent ...Read more
Author:Molobi, E; Sacks, N; Theron, MarithaDate:Apr 2022Laser engineered net shaping of a WC-10wt%FeCr cemented carbide showed cracking during deposition despite using a full factorial design of experiments matrix along with single and multiple objective optimization models to establish an optimal ...Read more
Author:Mathe, Ntombizodwa RDate:Aug 2021The additive manufacturing of aluminium alloys has gained great interest in the transport industry in the past 10 years. This is mainly due to the lightweight and good strength that these alloys offer especially for applications in aerospace ...Read more
Author:Zain, EM; Youssef, AF; Sabbagh, AEI; Pityana, Sisa L; Taha, MADate:Dec 2021Nickel Titanium alloy (Nitinol) is characterized by its good mechanical properties, good damping properties in addition to its distinctive shape-memory effect and superelasticity effect besides its great bio-mechanical compatibility and ...Read more
Author:Molatlhegi, G; Hoosain, Shaik; Popoola, API; Malatji, N; Pityana, Sisa LDate:Oct 2021Ti-6Al-4V is favourable due to its exquisite properties for example, low modulus, light weight, excellent strength, and corrosion resistance. Despite the excellent properties of the material, the fabrication process of titanium components is ...Read more
Author:Kubjane, SM; Arthur, Nana KK; Masina, Bathusile N; Popoola, API; Pityana, Sisa LDate:Sep 2019Because of its low density, high corrosion resistance and high strength to weight ratio, titanium and its alloys are widely used in aerospace applications. As a result, the material is exposed to detrimental environment. An enhancement in ...Read more
Author:Moshokoa, Nthabiseng; Raganya, Mampai L; Obadele, BA; Olubambi, PA; Machaka, RonaldDate:2020The present study investigates the effect of solution treatment on the microstructure and mechanical properties of as-cast Ti-Mo alloys. The two alloys (Ti-8Mo and Ti-9Mo) were fabricated using a commercially available Arc re-melting furnace. ...Read more
Author:Lekoadi, Paul M; Tlotleng, Monnamme; Masina, Bathusile NDate:Dec 2021This work investigated the influence of heating temperature (°C) on the microstructure and microhardness of TiB/Ti6Al4V-ELI composite clads that were produced via in-situ alloying using laser metal deposition technique. The samples were ...Read more
Author:Lekoadi, Paul M; Tlotleng, Monnamme; Annan, K; Maledi, N; Masina, Bathusile NDate:Feb 2021This study presents the investigation on how heat treatment parameters, which are temperature, cooling method, and residence time, influence the microstructural and hardness properties of Ti6Al4V components produced on Ti6Al4V substrate using ...Read more
Author:Glaser, Daniel; Polese, C; Venter, AM; Marais, D; Plaisier, JRDate:Mar 2022Engineering of component surfaces using Laser Shock Peening (LSP) requires optimisation of key process parameters to enhance performance through the generation of beneficial compressive residual stresses. Quantification of residual stress ...Read more