Search Results - "Pityana, S. L."

Review on direct metal laser deposition manufacturing technology for the Ti-6Al-4V alloy by Sibisi, P. N., Popoola, A. P. I., Arthur, N. K. K., Pityana, S. L.

“…Direct laser metal deposition (DLMD) is a breaking edge laser-based additive manufacturing (LAM) technique with the possibility of changing the perception of…”
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Laser surface alloying of Al with Cu and Mo powders by Pityana, S L, Camagu, S T, Majumdar, J Dutta

“…Laser surface alloying was used to develop copper and molybdenum aluminides by injecting premixed copper and molybdenum powder particles into a laser-generated…”
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Microstructural and tribological behavior of in situ synthesized Ti/Co coatings on Ti-6Al-4V alloy using laser surface cladding technique by Adesina, O. S., Popoola, A. P. I., Pityana, S. L., Oloruntoba, D. T.

“…The enhancement of the tribological properties of titanium (Ti-6Al-4V) has been the subject of wide range research over the years. The constraints associated…”
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Modeling the interaction between powder particles and laser heat sources by Baloyi, P., Desai, D. A., Arthur, N. K. K., Pityana, S. L.

“…This study investigates the spheroidization of titanium Ti-6Al-4V powder particles using numerical models developed in Abaqus and OpenFOAM. Spherical particles…”
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Microstructural Characteristics, Crack Frequency and Diffusion Kinetics of Functionally Graded Ti-Al Composite Coatings: Effects of Laser Energy Density (LED) by Olakanmi, E. O., Sepako, M., Morake, J., Hoosain, S. E., Pityana, S. L.

“…This study examines the dependence of microstructural characteristics, crack frequency and diffusion kinetics of functionally graded (FGM) titanium aluminide…”
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Laser Surface Alloying of 316L Stainless Steel with Ru and Ni Mixtures by Lekala, M. B., Pityana, S. L., van der Merwe, J. W.

“…The surfaces of AISI 316L stainless steel were laser alloyed with ruthenium powder and a mixture of ruthenium and nickel powders using a cw Nd:YAG laser set at…”
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Laser Cladding and Characterization of Ni–SiC–ZrB2 Cermet Coatings on Ti–6Al–4V for High-Temperature Applications by Farotade, G. A., Adesina, O. S., Popoola, A. P. I., Pityana, S. L.

“…High-temperature ceramic–metal (cermet) coatings are highly viable in engineering applications involving ablative influence of hot environments. Thus, the…”
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Laser Surface Alloying of Aluminum (AA1200) with Ni and SiC Powders by Mabhali, L. A. B., Pityana, S. L., Sacks, N.

“…An Nd:YAG laser was used for surface alloying of aluminum AA1200. The alloying powder was a mixture of Ni and SiC in different ratios. A study of the…”
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Electrochemical Studies on the Corrosion Behaviour of Laser Alloyed Zn-Sn Coatings on UNS G10150 Steel in 1M HCl Solution by Fatoba, O. S., Popoola, A. P. I., Fedotova, T., Pityana, S. L.

“…Surface deterioration by corrosion is one of the complications associated with ageing facilities and components especially under some service environments…”
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The Influence of Heat Treatment and Process Parameters Optimization on Hardness and Corrosion Properties of Laser Alloyed X12CrNiMo Steel by I. Popoola, A. P., Fatoba, O. S., Popoola, O. M., Pityana, S. L.

“…Martensitic stainless steels are used in the production of steam turbine blades but their application is limited due to low hardness and poor corrosion…”
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MICROSTRUCTURE AND MECHANICAL CHARACTERISATION OF TIAL COATED ON Ti64 by Masina, Bathusile, Lengopeng, Thabo, Pityana, Sisa, Tlotleng, Monnamme

“…In this study, TiAl alloy was coated on Ti64 using a 1074nm high power continuous-wave laser while varying the laser beam scanning speed. This was done in…”
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Laser surface deposition of niobium and titanium-niobium on Ti6A14V substrates for biomedical applications by Pityana, S.L., Baloyi, N., Tlotleng, M., Popoola, P.

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Laser Surface Alloying of Aluminium AA1200 by Mabhali, L. A. B., Pityana, S. L., Sacks, N.

“…Aluminium AA1200 was laser alloyed with mixtures of Ni, Ti and SiC powders using a 4.4 kW Rofin Sinar Nd:YAG laser to improve its surface hardness. The…”
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Microstructure characterization of laser-deposited titanium carbide and zirconium-based titanium metal matrix composites by Ochonogor, O F, Meacock, C, Pityana, S L, Popoola, PAI, Majumder, J D

“…Laser metal deposition (LMD) is an additive manufacturing technique whereby a stream of metal powder is consolidated by a focused laser beam on the surface of…”
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Multi-variable optimisation of the quality characteristics of fiber-laser cladded Inconel-625 composite coatings by Olakanmi, E.O., Nyadongo, S.T., Malikongwa, K., Lawal, S.A., Botes, A., Pityana, S.L.

“…Inappropriate choice of processing and materials parameters when re-manufacturing industrial equipment, via laser cladding (LC) technique, has adverse…”
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Analysis of failure characteristics of screen plates of ring hammer crusher used in coal handling applications by Kyekyere, E., Olakanmi, E.O., Prasad, R.V.S., Matshediso, B., Motimedi, T., Botes, A., Pityana, S.L.

“…•Failure modes of the crusher’s screen plate are fracture, crack, slimming and wear.•Main failure mechanisms are abrasive wear, fatigue and brittle…”
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Performance evaluation and failure analysis of conical picks used in a Botswana (Ngwato) mine by Akintunde, I.B., Lindsay, E.E., Olakanmi, E.O., Prasad, R.V.S., Matshediso, B.I., Motimedi, T., Botes, A., Pityana, S.L.

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Failure assessment of the continuous miner cutter sleeves in Coal Mines: A case study by Lindsay, E.E., Akintunde, I.B., Olakanmi, E.O., Prasad, R.V.S., Matshediso, B., Motimedi, T., Botes, A., Pityana, S.L.

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Mechanical, wear and corrosion behaviours of laser additive manufactured iron-based heterogeneous composite coatings for tillage tools by Aramide, B.P., Jamiru, T., Adegbola, T.A., Popoola, A.P.I., Pityana, S.L.

“…Steel is commonly used in engineering components, and it has a high tendency to wear and corrosion attacks when exposed to unfavourable working conditions. The…”
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In situ laser deposition of NiTi intermetallics for corrosion improvement of Ti–6Al–4V alloy by MOKGALAKA, M.N., POPOOLA, A.P.I., PITYANA, S.L.

“…NiTi intermetallic coatings were fabricated on the surface of Ti–6Al–4V alloy by melting Ni and Ti powders using laser metal deposition (LMD) process. The…”
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