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Christopher N Machio
Researcher at Council for Scientific and Industrial Research
Publications - 29
Citations - 525
Christopher N Machio is an academic researcher from Council for Scientific and Industrial Research. The author has contributed to research in topics: Alloy & Corrosion. The author has an hindex of 11, co-authored 28 publications receiving 428 citations. Previous affiliations of Christopher N Machio include University of the Witwatersrand & Council of Scientific and Industrial Research.
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Influence of nickel additions on the corrosion behaviour of low nitrogen 22% Cr series duplex stainless steels
TL;DR: In this paper, four 22% Cr duplex stainless steel alloys containing varying nickel contents of approximately 5, 7, 9% and 13% were melted in a vacuum induction furnace, hot rolled, solution annealed and water quenched.
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The corrosion behaviour of WC-VC-Co hardmetals in acidic media
TL;DR: In this paper, the effect of increasing vanadium carbide (VC) content on the corrosion behavior of tungsten carbide was investigated in 1M hydrochloric (HCl), and sulphuric(H2SO4) acids solutions.
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The beneficial effect of ruthenium additions on the passivation of duplex stainless steel corrosion in sodium chloride solutions
El-Sayed M. Sherif,El-Sayed M. Sherif,J.H. Potgieter,J.D. Comins,L.A. Cornish,Peter Apata Olubambi,Christopher N Machio +6 more
TL;DR: In this article, the effect of varying ruthenium contents on the corrosion of DSS was investigated using open-circuit potential, potentiodynamic cyclic polarization, chronoamperometry, electrochemical impedance spectroscopy, and weight-loss measurements.
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Performance of WC–VC–Co thermal spray coatings in abrasion and slurry erosion tests
TL;DR: Berndt et al. as mentioned in this paper presented results obtained from commercial WC-12 wt.%Co and WC-17 wt.%Co as well as experimental WC-10wt.%.%Co coatings.
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Modelling and optimization of surface roughness during AISI P20 milling process using Taguchi method
Isaac Tlhabadira,Ilesanmi Daniyan,Ronald Machaka,Christopher N Machio,Leonard Masu,L.R. VanStaden +5 more
TL;DR: In this article, the authors used the Taguchi method during the milling operation of AISI P20 in order to reduce surface roughness using Autodesk Fusion 360 (2.0.5357) for modelling the stress, displacement and thermal behaviour of the cutting tool and work piece under different cutting conditions.