Insight into tribological and corrosion behaviour of binderless TiCxNy ceramic composites processed via pulsed electric current sintering technique

Gadifele Nicolene Mekgwe; Samuel Olukayode Akinwamide; Ojo Jeremiah Akinribide; Peter Apata Olubambi

doi:10.1016/j.ceramint.2022.05.129

Insight into tribological and corrosion behaviour of binderless TiC_xN_y ceramic composites processed via pulsed electric current sintering technique

Gadifele Nicolene Mekgwe, Samuel Olukayode Akinwamide, Ojo Jeremiah Akinribide, Peter Apata Olubambi

Metallurgy

Research output: Contribution to journal › Article › peer-review

16 Citations (Scopus)

Abstract

The study presents the corrosion behaviour and wear response of pulsed electric current sintered binderless TiC₅₀N₅₀, TiC₇₀N₃₀, and TiC₉₀N₁₀ based ceramic composites, consolidated by spark plasma sintering (SPS), and the relative densities were evaluated using the Archimedes principle. The microstructural evolutions of the sintered samples were examined through various microscopy techniques, and their susceptibility to corrosion in aggressive chloride environment was assessed using open circuit potential, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) methods. The microstructural examination of the specimens showed the presence of different phases within the titanium carbonitride (TiCN) cermets. The wear resistance evaluated using the frictional coefficient (COF) and calculated wear rate showed that the specimens exhibited an improved resistance. The specimens further showed enhanced resistance to corrosion in the test electrolyte, as the TiC₅₀N₅₀ cermet displayed enhanced resistance to the aggressive chloride ions in comparison to the other specimens.

Original language	English
Pages (from-to)	24793-24802
Number of pages	10
Journal	Ceramics International
Volume	48
Issue number	17
DOIs	https://doi.org/10.1016/j.ceramint.2022.05.129
Publication status	Published - 1 Sept 2022

Keywords

Electron backscattered diffraction
Frictional coefficient
Potentiodynamic polarization
Spark plasma sintering
TiCN cermets
Titanium nitride

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.ceramint.2022.05.129

Cite this

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title = "Insight into tribological and corrosion behaviour of binderless TiCxNy ceramic composites processed via pulsed electric current sintering technique",

abstract = "The study presents the corrosion behaviour and wear response of pulsed electric current sintered binderless TiC50N50, TiC70N30, and TiC90N10 based ceramic composites, consolidated by spark plasma sintering (SPS), and the relative densities were evaluated using the Archimedes principle. The microstructural evolutions of the sintered samples were examined through various microscopy techniques, and their susceptibility to corrosion in aggressive chloride environment was assessed using open circuit potential, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) methods. The microstructural examination of the specimens showed the presence of different phases within the titanium carbonitride (TiCN) cermets. The wear resistance evaluated using the frictional coefficient (COF) and calculated wear rate showed that the specimens exhibited an improved resistance. The specimens further showed enhanced resistance to corrosion in the test electrolyte, as the TiC50N50 cermet displayed enhanced resistance to the aggressive chloride ions in comparison to the other specimens.",

keywords = "Electron backscattered diffraction, Frictional coefficient, Potentiodynamic polarization, Spark plasma sintering, TiCN cermets, Titanium nitride",

author = "Mekgwe, {Gadifele Nicolene} and Akinwamide, {Samuel Olukayode} and Akinribide, {Ojo Jeremiah} and Olubambi, {Peter Apata}",

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Insight into tribological and corrosion behaviour of binderless TiC_xN_y ceramic composites processed via pulsed electric current sintering technique. / Mekgwe, Gadifele Nicolene; Akinwamide, Samuel Olukayode; Akinribide, Ojo Jeremiah et al.
In: Ceramics International, Vol. 48, No. 17, 01.09.2022, p. 24793-24802.

Research output: Contribution to journal › Article › peer-review

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T1 - Insight into tribological and corrosion behaviour of binderless TiCxNy ceramic composites processed via pulsed electric current sintering technique

AU - Mekgwe, Gadifele Nicolene

AU - Akinwamide, Samuel Olukayode

AU - Akinribide, Ojo Jeremiah

AU - Olubambi, Peter Apata

PY - 2022/9/1

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N2 - The study presents the corrosion behaviour and wear response of pulsed electric current sintered binderless TiC50N50, TiC70N30, and TiC90N10 based ceramic composites, consolidated by spark plasma sintering (SPS), and the relative densities were evaluated using the Archimedes principle. The microstructural evolutions of the sintered samples were examined through various microscopy techniques, and their susceptibility to corrosion in aggressive chloride environment was assessed using open circuit potential, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) methods. The microstructural examination of the specimens showed the presence of different phases within the titanium carbonitride (TiCN) cermets. The wear resistance evaluated using the frictional coefficient (COF) and calculated wear rate showed that the specimens exhibited an improved resistance. The specimens further showed enhanced resistance to corrosion in the test electrolyte, as the TiC50N50 cermet displayed enhanced resistance to the aggressive chloride ions in comparison to the other specimens.

AB - The study presents the corrosion behaviour and wear response of pulsed electric current sintered binderless TiC50N50, TiC70N30, and TiC90N10 based ceramic composites, consolidated by spark plasma sintering (SPS), and the relative densities were evaluated using the Archimedes principle. The microstructural evolutions of the sintered samples were examined through various microscopy techniques, and their susceptibility to corrosion in aggressive chloride environment was assessed using open circuit potential, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) methods. The microstructural examination of the specimens showed the presence of different phases within the titanium carbonitride (TiCN) cermets. The wear resistance evaluated using the frictional coefficient (COF) and calculated wear rate showed that the specimens exhibited an improved resistance. The specimens further showed enhanced resistance to corrosion in the test electrolyte, as the TiC50N50 cermet displayed enhanced resistance to the aggressive chloride ions in comparison to the other specimens.

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