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:Tshwane, David M; Modiba, Rosinah; Govender, Gonasagren; Ngoepe, PE; Chauke, RDate:Jan 2021Adsorption of halogen on the metal surface has received much attention due to its technological applications and major relevance for material surface processing, corrosion protection and etching. In this work, first-principle approach was ...Read more
Author:Tshwane, David M; Modiba, Rosinah; Govender, Gonasagren; Ngoepe, PE; Chauke, HRDate:Dec 2021Fluorine molecules and ions are used as an etchant for metal surface processing. The presence of fluorine significantly influences the electrochemical behaviour on a metal surface, which has major relevance for etching, corrosion, electro-catalysis ...Read more
Author:Nyadongo, ST; Olakanmi, EO; Pityana, Sisa LDate:Oct 2022Shafts, gears, axles and crankshafts, which are exposed to severe sliding wear environment, are made from wear resistant EN8 medium carbon steel. The wear resistance of EN8 can be enhanced by depositing it with laser cladding assisted with ...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:Mokuwe, Mamuku W; Goorun, Yurisha; Crafford, Gerhardus JDate:Oct 2022This work presents a vision-based quality assurance system that does assembly line monitoring. The system is developed using machine learning hand tracking and object detection methods to monitor the worker’s hand movement while evaluating ...Read more
Author:Mathabathe, Maria N; Bolokang, Amogelang SDate:May 2022Contemporary ways of employing and combining existing materials are a requisite for meeting tomorrow’s engineering applications. This is upscaled by the potent attributes of remaining competitive by keeping costs effective while advancing the ...Read more
Author:Thobakgale, Setumo L; Ombinda-Lemboumba, Saturnin; Mthunzi-Kufa, PatienceDate:Aug 2022The increase in demand for pharmaceutical treatments due to pandemic-related illnesses has created a need for improved quality control in drug manufacturing. Understanding the physical, biological, and chemical properties of APIs is an important ...Read more
Author:Naidoo, Thegaran; Verster, Jacobus J; Marais, Stephen TDate:Nov 2022A cloud-based road infrastructure analysis system was developed to assist as an information management system for detecting and managing information about road defects and road assets. The system uses computer vision and machine learning ...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:Matsagopane, G; Olakanmi, EO; Botes, Annelize; Kutua, SDate:May 2019Documentation on the correct process and component requirements for setting up efficient aluminum powder production systems capable of manufacturing powder that meets the requirements for the selective laser melting (SLM) process is not ...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:Xungu, Sipho; Mgangira, Martin B; Giani, John CDate:Nov 2021This paper describes the design and manufacturing of a mechanical system, the Aggregate Abrasion Test Device (AATD), which comprises of a rolling model drum, with the purpose of obtaining experimental data that is subsequently used to quantify ...Read more
Author:Oyesola, M; Mpofu, K; Daniyan, I; Mathe, Ntombizodwa RDate:Dec 2022In evaluating emerging technology, such as additive manufacturing, it is important to analyse the impact of the manufacturing process on efficiency in an objective and quantifiable manner. This study deals with the design and simulation of a ...Read more
Author:Bolokang, Amogelang SDate:Feb 2019Foundry slag formed during the production of medium carbon steel was milled into powder which was then compacted into blocks to form heat treatment furnace refractory materials. The foundry slag was ball-milled into powders which were further ...Read more