Topographical orientation effects on friction and wear in sliding DLC and steel contacts: Part 1: Experimental

Kenneth Holmberg (Corresponding Author), Anssi Laukkanen, Helena Ronkainen, Richard Waudby, Gwidon Stachowiak, Marcin Wolski, Pawel Podsiadlo, Mark Gee, John Nunn, Carsten Gachot, Lawrence Li

Research output: Contribution to journalArticleScientificpeer-review

11 Citations (Scopus)

Abstract

The effect of surface roughness and topographical orientation on friction and wear has been investigated for diamond like carbon (DLC) coated and uncoated steel surfaces with three levels of surface roughness in the range of 0.004-0.11 µm Ra value and with topographical orientations at 0°, 45° and 90° angles from grinding marks. In this first part we report the experimental observations that form the basis for future computational modelling of the tribological effects and mechanisms. The surfaces were characterised by the scanning electron microscopy (SEM) and focused ion beam (FIB) method and mechanical properties were measured. In the topographical characterisation measurements included the fractal signatures, the texture aspect ratio signatures and the texture direction signatures were measured and calculated by the variance orientation transform (VOT) method. The friction and wear were measured and observed in scratch testing, micro tribological testing and linear reciprocating testing in three directions of topographical orientation, as well as in rotational pin-on-disc testing. The topographical orientation had considerable effect on both friction and wear in DLC vs DLC contacts while the effect was minor and sometimes not even observable in steel vs steel contacts. A surface strengthening effect which is higher for smooth DLC surfaces and micro-cracking and micro-delamination on asperity tips at low loads for rougher surfaces is reported. The 45° orientation resulted in higher friction and considerably higher ball wear in linear reciprocating pin-on-plate testing of DLC surfaces compared with the 0° and 90° orientations.
Original languageEnglish
Pages (from-to)3-22
JournalWear
Volume330-331
DOIs
Publication statusPublished - 2015
MoE publication typeA1 Journal article-refereed

Fingerprint

Diamond
Steel
sliding
Diamonds
friction
Carbon
diamonds
Wear of materials
steels
Friction
carbon
Testing
signatures
Textures
Surface roughness
surface roughness
textures
Focused ion beams
Delamination
Fractals

Keywords

  • friction
  • wear
  • topography
  • orientation
  • modelling
  • ProperTune

Cite this

Holmberg, Kenneth ; Laukkanen, Anssi ; Ronkainen, Helena ; Waudby, Richard ; Stachowiak, Gwidon ; Wolski, Marcin ; Podsiadlo, Pawel ; Gee, Mark ; Nunn, John ; Gachot, Carsten ; Li, Lawrence. / Topographical orientation effects on friction and wear in sliding DLC and steel contacts : Part 1: Experimental. In: Wear. 2015 ; Vol. 330-331. pp. 3-22.
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abstract = "The effect of surface roughness and topographical orientation on friction and wear has been investigated for diamond like carbon (DLC) coated and uncoated steel surfaces with three levels of surface roughness in the range of 0.004-0.11 µm Ra value and with topographical orientations at 0°, 45° and 90° angles from grinding marks. In this first part we report the experimental observations that form the basis for future computational modelling of the tribological effects and mechanisms. The surfaces were characterised by the scanning electron microscopy (SEM) and focused ion beam (FIB) method and mechanical properties were measured. In the topographical characterisation measurements included the fractal signatures, the texture aspect ratio signatures and the texture direction signatures were measured and calculated by the variance orientation transform (VOT) method. The friction and wear were measured and observed in scratch testing, micro tribological testing and linear reciprocating testing in three directions of topographical orientation, as well as in rotational pin-on-disc testing. The topographical orientation had considerable effect on both friction and wear in DLC vs DLC contacts while the effect was minor and sometimes not even observable in steel vs steel contacts. A surface strengthening effect which is higher for smooth DLC surfaces and micro-cracking and micro-delamination on asperity tips at low loads for rougher surfaces is reported. The 45° orientation resulted in higher friction and considerably higher ball wear in linear reciprocating pin-on-plate testing of DLC surfaces compared with the 0° and 90° orientations.",
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author = "Kenneth Holmberg and Anssi Laukkanen and Helena Ronkainen and Richard Waudby and Gwidon Stachowiak and Marcin Wolski and Pawel Podsiadlo and Mark Gee and John Nunn and Carsten Gachot and Lawrence Li",
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Holmberg, K, Laukkanen, A, Ronkainen, H, Waudby, R, Stachowiak, G, Wolski, M, Podsiadlo, P, Gee, M, Nunn, J, Gachot, C & Li, L 2015, 'Topographical orientation effects on friction and wear in sliding DLC and steel contacts: Part 1: Experimental', Wear, vol. 330-331, pp. 3-22. https://doi.org/10.1016/j.wear.2015.02.014

Topographical orientation effects on friction and wear in sliding DLC and steel contacts : Part 1: Experimental. / Holmberg, Kenneth (Corresponding Author); Laukkanen, Anssi; Ronkainen, Helena; Waudby, Richard; Stachowiak, Gwidon; Wolski, Marcin; Podsiadlo, Pawel; Gee, Mark; Nunn, John; Gachot, Carsten; Li, Lawrence.

In: Wear, Vol. 330-331, 2015, p. 3-22.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Topographical orientation effects on friction and wear in sliding DLC and steel contacts

T2 - Part 1: Experimental

AU - Holmberg, Kenneth

AU - Laukkanen, Anssi

AU - Ronkainen, Helena

AU - Waudby, Richard

AU - Stachowiak, Gwidon

AU - Wolski, Marcin

AU - Podsiadlo, Pawel

AU - Gee, Mark

AU - Nunn, John

AU - Gachot, Carsten

AU - Li, Lawrence

PY - 2015

Y1 - 2015

N2 - The effect of surface roughness and topographical orientation on friction and wear has been investigated for diamond like carbon (DLC) coated and uncoated steel surfaces with three levels of surface roughness in the range of 0.004-0.11 µm Ra value and with topographical orientations at 0°, 45° and 90° angles from grinding marks. In this first part we report the experimental observations that form the basis for future computational modelling of the tribological effects and mechanisms. The surfaces were characterised by the scanning electron microscopy (SEM) and focused ion beam (FIB) method and mechanical properties were measured. In the topographical characterisation measurements included the fractal signatures, the texture aspect ratio signatures and the texture direction signatures were measured and calculated by the variance orientation transform (VOT) method. The friction and wear were measured and observed in scratch testing, micro tribological testing and linear reciprocating testing in three directions of topographical orientation, as well as in rotational pin-on-disc testing. The topographical orientation had considerable effect on both friction and wear in DLC vs DLC contacts while the effect was minor and sometimes not even observable in steel vs steel contacts. A surface strengthening effect which is higher for smooth DLC surfaces and micro-cracking and micro-delamination on asperity tips at low loads for rougher surfaces is reported. The 45° orientation resulted in higher friction and considerably higher ball wear in linear reciprocating pin-on-plate testing of DLC surfaces compared with the 0° and 90° orientations.

AB - The effect of surface roughness and topographical orientation on friction and wear has been investigated for diamond like carbon (DLC) coated and uncoated steel surfaces with three levels of surface roughness in the range of 0.004-0.11 µm Ra value and with topographical orientations at 0°, 45° and 90° angles from grinding marks. In this first part we report the experimental observations that form the basis for future computational modelling of the tribological effects and mechanisms. The surfaces were characterised by the scanning electron microscopy (SEM) and focused ion beam (FIB) method and mechanical properties were measured. In the topographical characterisation measurements included the fractal signatures, the texture aspect ratio signatures and the texture direction signatures were measured and calculated by the variance orientation transform (VOT) method. The friction and wear were measured and observed in scratch testing, micro tribological testing and linear reciprocating testing in three directions of topographical orientation, as well as in rotational pin-on-disc testing. The topographical orientation had considerable effect on both friction and wear in DLC vs DLC contacts while the effect was minor and sometimes not even observable in steel vs steel contacts. A surface strengthening effect which is higher for smooth DLC surfaces and micro-cracking and micro-delamination on asperity tips at low loads for rougher surfaces is reported. The 45° orientation resulted in higher friction and considerably higher ball wear in linear reciprocating pin-on-plate testing of DLC surfaces compared with the 0° and 90° orientations.

KW - friction

KW - wear

KW - topography

KW - orientation

KW - modelling

KW - ProperTune

UR - https://www.sciencedirect.com/journal/wear/vol/330/suppl/C

U2 - 10.1016/j.wear.2015.02.014

DO - 10.1016/j.wear.2015.02.014

M3 - Article

VL - 330-331

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JO - Wear

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SN - 0043-1648

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