Friction and wear properties of zirconium diboride in sliding against WC ball

J. K. Sonber; K. Raju; T. S.R.Ch Murthy; K. Sairam; A. Nagaraj; Sanjib Majumdar; Vivekanand Kain

doi:10.1016/j.ijrmhm.2018.05.009

Friction and wear properties of zirconium diboride in sliding against WC ball

J. K. Sonber^*, K. Raju, T. S.R.Ch Murthy, K. Sairam, A. Nagaraj, Sanjib Majumdar, Vivekanand Kain

^*Corresponding author for this work

Metallurgy and Materials

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

13 Citations (Scopus)

Abstract

Friction and wear properties of the hot pressed zirconium diboride were investigated at different loads and frequencies under reciprocative sliding, using a counter body of tungsten carbide (WC-Co) ball. Coefficient of friction, wear volume and specific wear rate were evaluated. Wear mechanism have been analysed by using optical microscopy and SEM-EDS techniques. Coefficient of friction (COF) for monolithic zirconium diboride under dry reciprocative linear sliding wear with WC-Co ball was evaluated between 0.8 and 0.4 at different loads and frequencies. Load enhancement was found to decrease the COF of ZrB₂ with WC ball. An increase in load from 5 N to 20 N decreased the COF from 0.84 to 0.52 at 10 Hz frequency. Increase in sliding frequency also resulted in decrease in COF. It is decreased from 0.52 to 0.43 by increasing frequency from 10 Hz to 15 Hz at 20 N. Specific wear rate of zirconium diboride were evaluated in the order of 10⁻⁵ mm³/N·m. Tribo chemical layer formation was observed on the worn surface of zirconium diboride (flat) along with shallow abrasive grooves.

Original language	English
Pages (from-to)	41-48
Number of pages	8
Journal	International Journal of Refractory Metals and Hard Materials
Volume	76
Early online date	23 May 2018
DOIs	https://doi.org/10.1016/j.ijrmhm.2018.05.009
Publication status	Published - 1 Nov 2018

Keywords

Friction
Tribology
Tungsten carbide
Wear mechanisms
Wear rate
ZrB

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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https://www.sciencedirect.com/science/article/pii/S0263436818301495Licence: None: All rights reserved

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title = "Friction and wear properties of zirconium diboride in sliding against WC ball",

abstract = "Friction and wear properties of the hot pressed zirconium diboride were investigated at different loads and frequencies under reciprocative sliding, using a counter body of tungsten carbide (WC-Co) ball. Coefficient of friction, wear volume and specific wear rate were evaluated. Wear mechanism have been analysed by using optical microscopy and SEM-EDS techniques. Coefficient of friction (COF) for monolithic zirconium diboride under dry reciprocative linear sliding wear with WC-Co ball was evaluated between 0.8 and 0.4 at different loads and frequencies. Load enhancement was found to decrease the COF of ZrB2 with WC ball. An increase in load from 5 N to 20 N decreased the COF from 0.84 to 0.52 at 10 Hz frequency. Increase in sliding frequency also resulted in decrease in COF. It is decreased from 0.52 to 0.43 by increasing frequency from 10 Hz to 15 Hz at 20 N. Specific wear rate of zirconium diboride were evaluated in the order of 10−5 mm3/N·m. Tribo chemical layer formation was observed on the worn surface of zirconium diboride (flat) along with shallow abrasive grooves.",

keywords = "Friction, Tribology, Tungsten carbide, Wear mechanisms, Wear rate, ZrB",

author = "Sonber, {J. K.} and K. Raju and Murthy, {T. S.R.Ch} and K. Sairam and A. Nagaraj and Sanjib Majumdar and Vivekanand Kain",

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T1 - Friction and wear properties of zirconium diboride in sliding against WC ball

AU - Sonber, J. K.

AU - Raju, K.

AU - Murthy, T. S.R.Ch

AU - Sairam, K.

AU - Nagaraj, A.

AU - Majumdar, Sanjib

AU - Kain, Vivekanand

PY - 2018/11/1

Y1 - 2018/11/1

N2 - Friction and wear properties of the hot pressed zirconium diboride were investigated at different loads and frequencies under reciprocative sliding, using a counter body of tungsten carbide (WC-Co) ball. Coefficient of friction, wear volume and specific wear rate were evaluated. Wear mechanism have been analysed by using optical microscopy and SEM-EDS techniques. Coefficient of friction (COF) for monolithic zirconium diboride under dry reciprocative linear sliding wear with WC-Co ball was evaluated between 0.8 and 0.4 at different loads and frequencies. Load enhancement was found to decrease the COF of ZrB2 with WC ball. An increase in load from 5 N to 20 N decreased the COF from 0.84 to 0.52 at 10 Hz frequency. Increase in sliding frequency also resulted in decrease in COF. It is decreased from 0.52 to 0.43 by increasing frequency from 10 Hz to 15 Hz at 20 N. Specific wear rate of zirconium diboride were evaluated in the order of 10−5 mm3/N·m. Tribo chemical layer formation was observed on the worn surface of zirconium diboride (flat) along with shallow abrasive grooves.

AB - Friction and wear properties of the hot pressed zirconium diboride were investigated at different loads and frequencies under reciprocative sliding, using a counter body of tungsten carbide (WC-Co) ball. Coefficient of friction, wear volume and specific wear rate were evaluated. Wear mechanism have been analysed by using optical microscopy and SEM-EDS techniques. Coefficient of friction (COF) for monolithic zirconium diboride under dry reciprocative linear sliding wear with WC-Co ball was evaluated between 0.8 and 0.4 at different loads and frequencies. Load enhancement was found to decrease the COF of ZrB2 with WC ball. An increase in load from 5 N to 20 N decreased the COF from 0.84 to 0.52 at 10 Hz frequency. Increase in sliding frequency also resulted in decrease in COF. It is decreased from 0.52 to 0.43 by increasing frequency from 10 Hz to 15 Hz at 20 N. Specific wear rate of zirconium diboride were evaluated in the order of 10−5 mm3/N·m. Tribo chemical layer formation was observed on the worn surface of zirconium diboride (flat) along with shallow abrasive grooves.

KW - Friction

KW - Tribology

KW - Tungsten carbide

KW - Wear mechanisms

KW - Wear rate

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ER -

Friction and wear properties of zirconium diboride in sliding against WC ball

Abstract

Keywords

ASJC Scopus subject areas

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