Utilising H/E to predict fretting wear performance of DLC coating systems

Samuel McMaster

doi:10.1016/j.triboint.2023.108524

Utilising H/E to predict fretting wear performance of DLC coating systems

Samuel McMaster

Centre for Manufacturing and Materials

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

8 Citations (Scopus)

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Abstract

Diamond-like carbon coatings have previously been studied as a protective coating for fretting wear protection providing low friction and low wear. H/E ratio has been used as a metric to rank coating performance in sliding wear, but this has not been applied to gross-slip fretting. Three DLC coating systems (a-C:H, Si-a-C:H, a-C:H:W top layers) on hardened M2 tool steel were studied using a bespoke electrodynamic shaker with a 10 mm 52100 steel ball as the counterface. This work has shown that H/E ratio can be used to predict wear performance in gross-slip fretting; the highest H/E ratio a-C:H performed best with low friction and wear.

Original language	English
Article number	108524
Number of pages	10
Journal	Tribology International
Volume	185
Early online date	17 Apr 2023
DOIs	https://doi.org/10.1016/j.triboint.2023.108524
Publication status	Published - Jul 2023

Bibliographical note

Funder

EPSRC

Keywords

Fretting
DLC
Wear
Friction

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10.1016/j.triboint.2023.108524Licence: CC BY

PublishedFinal published version, 5.57 MBLicence: CC BY

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title = "Utilising H/E to predict fretting wear performance of DLC coating systems",

abstract = "Diamond-like carbon coatings have previously been studied as a protective coating for fretting wear protection providing low friction and low wear. H/E ratio has been used as a metric to rank coating performance in sliding wear, but this has not been applied to gross-slip fretting. Three DLC coating systems (a-C:H, Si-a-C:H, a-C:H:W top layers) on hardened M2 tool steel were studied using a bespoke electrodynamic shaker with a 10 mm 52100 steel ball as the counterface. This work has shown that H/E ratio can be used to predict wear performance in gross-slip fretting; the highest H/E ratio a-C:H performed best with low friction and wear.",

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AB - Diamond-like carbon coatings have previously been studied as a protective coating for fretting wear protection providing low friction and low wear. H/E ratio has been used as a metric to rank coating performance in sliding wear, but this has not been applied to gross-slip fretting. Three DLC coating systems (a-C:H, Si-a-C:H, a-C:H:W top layers) on hardened M2 tool steel were studied using a bespoke electrodynamic shaker with a 10 mm 52100 steel ball as the counterface. This work has shown that H/E ratio can be used to predict wear performance in gross-slip fretting; the highest H/E ratio a-C:H performed best with low friction and wear.

KW - Fretting

KW - DLC

KW - Wear

KW - Friction

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DO - 10.1016/j.triboint.2023.108524

M3 - Article

SN - 0301-679X

VL - 185

JO - Tribology International

JF - Tribology International

M1 - 108524

ER -

Utilising H/E to predict fretting wear performance of DLC coating systems

Abstract

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