Friction and wear properties of hot pressed (Ti,Cr)B2 + MoSi2 composite in sliding against WC ball

T.S.R.C. Murthy; P.K. Limaye; J.K. Sonber; K. Sairam; A. Nagaraj; C. Subramanian; N.L. Soni; R.J. Patel; R.C. Hubli

doi:10.1016/j.ijrmhm.2013.12.013

Friction and wear properties of hot pressed (Ti,Cr)B₂ + MoSi₂ composite in sliding against WC ball

T.S.R.C. Murthy, P.K. Limaye, J.K. Sonber, K. Sairam, A. Nagaraj, C. Subramanian, N.L. Soni, R.J. Patel, R.C. Hubli

Metallurgy and Materials

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

19 Citations (Scopus)

Abstract

Friction and wear properties of the hot pressed composite of pre-alloyed (TiCr)B₂ + 20%MoSi₂ (4.81 g/cm³) were studied at different loads and frequencies under reciprocative sliding, using a counter body of cemented tungsten carbide (WC-Co) ball. Coefficient of friction, wear volume and wear rate were measured. Optical microscopy and SEM-EDS analysis were carried out to understand the wear mechanism and chemistry of debris. A lowest value of coefficient of friction (COF) was measured as 0.38 at 10 N load and 10 Hz frequency. At 15 Hz frequency, the increase in load from 3 N to 10 N results in reducing the COF from 0.56 to 0.39. One order decrease in magnitude of specific wear rate was observed with an increase in load from 3 N to 10 N. Abrasive wear was the main mechanism identified in both flat and counter body materials. Severe wear was seen in counter body material (WC-Co) compared to base material of (Ti_0.85Cr_0.15)B₂ + 20%MoSi₂ composite.

Original language	English
Pages (from-to)	276-283
Number of pages	8
Journal	International Journal of Refractory Metals and Hard Materials
Volume	43
Early online date	28 Dec 2013
DOIs	https://doi.org/10.1016/j.ijrmhm.2013.12.013
Publication status	Published - 1 Mar 2014

Keywords

Pre-alloyed (TiCr)B2 + MoSi2 composite
Reciprocative sliding wear
COF
Wear rate
WC-Co counter body
Abrasive wear

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10.1016/j.ijrmhm.2013.12.013Licence: None: All rights reserved

https://doi.org/10.1016/j.ijrmhm.2013.12.013Licence: None: All rights reserved

Cite this

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title = "Friction and wear properties of hot pressed (Ti,Cr)B2 + MoSi2 composite in sliding against WC ball",

abstract = "Friction and wear properties of the hot pressed composite of pre-alloyed (TiCr)B2 + 20%MoSi2 (4.81 g/cm3) were studied at different loads and frequencies under reciprocative sliding, using a counter body of cemented tungsten carbide (WC-Co) ball. Coefficient of friction, wear volume and wear rate were measured. Optical microscopy and SEM-EDS analysis were carried out to understand the wear mechanism and chemistry of debris. A lowest value of coefficient of friction (COF) was measured as 0.38 at 10 N load and 10 Hz frequency. At 15 Hz frequency, the increase in load from 3 N to 10 N results in reducing the COF from 0.56 to 0.39. One order decrease in magnitude of specific wear rate was observed with an increase in load from 3 N to 10 N. Abrasive wear was the main mechanism identified in both flat and counter body materials. Severe wear was seen in counter body material (WC-Co) compared to base material of (Ti0.85Cr0.15)B2 + 20%MoSi2 composite.",

keywords = "Pre-alloyed (TiCr)B2 + MoSi2 composite, Reciprocative sliding wear, COF, Wear rate, WC-Co counter body, Abrasive wear",

author = "T.S.R.C. Murthy and P.K. Limaye and J.K. Sonber and K. Sairam and A. Nagaraj and C. Subramanian and N.L. Soni and R.J. Patel and R.C. Hubli",

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T1 - Friction and wear properties of hot pressed (Ti,Cr)B2 + MoSi2 composite in sliding against WC ball

AU - Murthy, T.S.R.C.

AU - Limaye, P.K.

AU - Sonber, J.K.

AU - Sairam, K.

AU - Nagaraj, A.

AU - Subramanian, C.

AU - Soni, N.L.

AU - Patel, R.J.

AU - Hubli, R.C.

PY - 2014/3/1

Y1 - 2014/3/1

N2 - Friction and wear properties of the hot pressed composite of pre-alloyed (TiCr)B2 + 20%MoSi2 (4.81 g/cm3) were studied at different loads and frequencies under reciprocative sliding, using a counter body of cemented tungsten carbide (WC-Co) ball. Coefficient of friction, wear volume and wear rate were measured. Optical microscopy and SEM-EDS analysis were carried out to understand the wear mechanism and chemistry of debris. A lowest value of coefficient of friction (COF) was measured as 0.38 at 10 N load and 10 Hz frequency. At 15 Hz frequency, the increase in load from 3 N to 10 N results in reducing the COF from 0.56 to 0.39. One order decrease in magnitude of specific wear rate was observed with an increase in load from 3 N to 10 N. Abrasive wear was the main mechanism identified in both flat and counter body materials. Severe wear was seen in counter body material (WC-Co) compared to base material of (Ti0.85Cr0.15)B2 + 20%MoSi2 composite.

AB - Friction and wear properties of the hot pressed composite of pre-alloyed (TiCr)B2 + 20%MoSi2 (4.81 g/cm3) were studied at different loads and frequencies under reciprocative sliding, using a counter body of cemented tungsten carbide (WC-Co) ball. Coefficient of friction, wear volume and wear rate were measured. Optical microscopy and SEM-EDS analysis were carried out to understand the wear mechanism and chemistry of debris. A lowest value of coefficient of friction (COF) was measured as 0.38 at 10 N load and 10 Hz frequency. At 15 Hz frequency, the increase in load from 3 N to 10 N results in reducing the COF from 0.56 to 0.39. One order decrease in magnitude of specific wear rate was observed with an increase in load from 3 N to 10 N. Abrasive wear was the main mechanism identified in both flat and counter body materials. Severe wear was seen in counter body material (WC-Co) compared to base material of (Ti0.85Cr0.15)B2 + 20%MoSi2 composite.

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