Author:Mathoho, Ipfi; Arthur, Nana KK; Tlotleng, MonnammeDate:Feb 2023The current study embarked on developing the H950 aging condition for 17-4 PH stainless steel that was manufactured through the DED process. The driving force for carrying out this study was that, when the H950 condition was applied to 17-4 ...Read more
Author:Moore, K; Kouprianoff, D; Louw, Daniel F; Yadroitsava, I; Yadroitsev, IDate:Dec 2023Delaminations and cracks are detrimental phenomena that hinder the quality of the final product in metal additive manufacturing. The effective use of other online monitoring systems that can detect these deformations and delaminations during ...Read more
Author:Sibisi, PN; Popoola, API; Arthur, Nana KK; Pityana, Sisa L; Popoola, OMDate:Oct 2019Direct Metal Laser Deposition (DMLD) processes such as LENS are gaining ground in commercial manufacturing processes of functional end-products. This is attributed to this process being popularized as a sustainable technology with the potential ...Read more
Author:Ramasobane, P; Mashinini, MP; Masina, Bathusile NDate:Nov 2023This study investigated the nano mechanical properties of Ti6Al4V-ELI embraced with TiC particles, synthesized with in situ laser metal deposition technique. The 3.85% feed ratio fraction TiC/Ti6Al4V-ELI composite samples were manufactured ...Read more
Author:Lesufi, M; Akinwamide, SO; Makoana, Nkutwane W; Tshabalala, Lerato C; Olubambi, PADate:Sep 2022This study investigates the microstructural, nanomechanical, and corrosion behaviour of different sections of 410 steel fabricated via directed energy deposition technique. The morphology exhibited by the longitudinal and transverse sections ...Read more
Author:Nzengue, ACB; Khumbulani, Mpofu, K; Mathe, Ntombizodwa R; Muvunzi, RDate:Dec 2023Selective laser melting (SLM) SLM has gained interest in processing lightweight metals like aluminium alloys. The SLM processing remains challenging in finding the appropriate process parameters for the desired mechanical properties. Previous ...Read more
Author:Morake, JB; Maina, MR; Mutua, JM; Olakanmi, EO; Pityana, Sisa LDate:Dec 2023Laser cladding is a surface modification method that can be employed in components under severe operating conditions, such as boiler heat exchangers, to mitigate degradation. However, poor clad quality hinders performance during service. This ...Read morecb
Author:Mfusi, Busisiwe J; Mathe, Ntombizodwa R; Makoana, Nkutwane W; Popoola, PDate:Nov 2022Surface morphology is a significant aspect of a solid material, whether for aesthetic or functional purposes and currently, through different surface modification methods, developments have been dedicated into advancing metallic materials to ...Read more
Author:Modikwe, T; Maledi, N; Mathe, Ntombizodwa R; Pityana, Sisa L; Dada, M; Makoana, Nkutwane WDate:Nov 2022Stainless steels, Ni-based alloys, Ti-based alloys, and more recently high entropy alloys have been used in the aerospace industry to improve the exterior properties of components and coatings that require a fine surface finishing with over ...Read more
Author:Olakanm, EO; Hoosain, Shaik E; Lawal, SA; Pityana, Sisa LDate:Jun 2022Tailoring materials’ microstructural characteristics to meet mechanical functional requirements is quite critical in designing wear resistant coatings. To the best of our knowledge, no study had related carbide dissolution ratio (CDR) in laser ...Read more
Author:Olakanmi, EO; Hoosain, Shaik E; Lawal, SA; Pityana, Sisa LDate:Mar 2023It is critical that coating’s microstructural characteristics are designed to meet its wear-resistance functional requirement. To the best of our knowledge, no study had related carbide dissolution ratio (CDR) in laser deposited Inconel 625 ...Read more
Author:Dada, M; Popoola, P; Mathe, Ntombizodwa RDate:Aug 2021This study aims to review the recent advancements in high entropy alloys (HEAs) called high entropy materials, including high entropy superalloys which are current potential alternatives to nickel superalloys for gas turbine applications. ...Read more
Author:Mugwagwa, L; Yadroitsava, I; Makoana, Nkutwane W; Yadroitsev, IDate:May 2021Laser powder bed fusion (L-PBF) has great prospects for biomedical, automotive, aerospace and other high-tech industry sectors due to its manufacturing flexibility and design freedom. However, several factors that include high residual stresses, ...Read more
Author:Maodzeka, DK; Mosalagae, M; Hagedorn-Hansen, D; Pityana, Sisa L; Olakanmi, EODate:Jun 2023Knowledge of friction properties of a material is essential in order to understand its tribological applications. The friction is an important aspect that affects functionality of maraging steel components manufactured by laser powder bed ...Read more
Author:Aramide, B; Jamiru, T; Pityana, Sisa L; Sadiku, R; Popoola, PDate:Apr 2022The poor tribological property and the high susceptibility of steel material used in mining and tillage tools to wear and corrosion attack during mining and tillage operations have brought about the need to enhance its property. Hence, this ...Read more
Author:Gayen, TK; Pityana, Sisa L; Akinlabi, E; Majumdar, JDDate:Sep 2023The present study concerns the development of titanium carbide (TiC) dispersed titanium matrix composite by laser surface processing of titanium with titanium and carbon (in the weight ratio of 90:10 and 50:50). Laser surface processing has ...Read more