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Browsing General science, engineering & technology by Author "Popoola, P"

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  • Dada, M; Popoola, P; Mathe, Ntombizodwa; Pityana, Sisa L; Adeosun, S (Elsevier, 2020-05)
    This preliminary study investigates the fabrication of Al-Co-Cr-Fe-Ni-Cu and Al-Ti-Cr-Fe-Co-Ni High Entropy Alloys with the Laser Deposition Technique. The effect of the laser parameters on the microstructure and hardness ...
  • Dada, M; Popoola, P; Adeosun, S; Mathe, Ntombizodwa R (IntechOpen, 2019-09)
    In the aerospace industry, materials used as modern engine components must be able to withstand extreme operating temperatures, creep, fatigue crack growth and translational movements of parts at high speed. Therefore, the ...
  • Dada, M; Popoola, P; Adeosun, S; Mathe, Ntombizodwa R (2019-09)
    In the aerospace industry, materials used as modern engine components must be able to withstand extreme operating temperatures, creep, fatigue crack growth and translational movements of parts at high speed. Therefore, the ...
  • Pityana, Sisa L; Baloyi, N; Tlotleng, Monnamme; Popoola, P (Southern African Institute of Mining and Metallurgy, 2019-04)
    The advantages of using Nb and Ti-Nb coatings for improving the hardness and corrosion resistance of Ti6Al4V were investigated. It has been reported that Ti6Al4V used in orthopaedic implants tends to release toxic Al and ...
  • Baloyi, NM; Pityana, Sisa L; Tlotleng, Monnamme; Meacock, C; Popoola, P (Microscopy Society of South Africa, 2012-12)
    Laser coating is an advanced coating technology used for improving the surface properties of metal components. The coatings produced are thick, dense, and crack-free with continuous non-porous microstructures having uniform ...
  • Dada, M; Popoola, P; Aramide, O; Mathe, Ntombizodwa R; Pityana, Sisa L (Elsevier, 2020-06)
    Laser Additive Manufacturing was used to fabricate AlTiCrFeCoNi high entropy alloy and the corrosion properties of the alloy were investigated in 3.5 wt% NaCl solution. The tests were conducted via potentiodynamic polarization ...
  • Dada, M; Popoola, P; Mathe, Ntombizodwa R; Pityana, Sisa L; Adeosun, S (Springer, 2020-08)
    In this study, a full-factorial design of experiments was systematically structured to optimize the laser processing parameters of additively manufactured high entropy alloys by determining the impact of these parameters ...
  • Dada, M; Popoola, P; Mathe, Ntombizodwa R; Pityana, Sisa L; Adeosun, S; Aramide, O; Lengopeng, Thabo (Wiley, 2020-08)
    Aerospace components and their coatings are required to possess excellent surface properties over a wide temperature range. Stainless steels, titanium, nickel superalloy, and more recently high entropy alloys (HEAs) have ...
  • Tshabalala, Lerato C; Ntuli, CP; Fwamba, JC; Popoola, P; Pityana, Sisa L (Elsevier, 2017-01)
    Femtosecond laser surface micromachining is a technique in which an ultrashort pulse laser beam is focused to dimensions of a few microns inside or on the surface of the substrate. In this paper, surface texture transformation ...

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