Vacuum tribological behavior of the non-hydrogenated diamond-like carbon coatings against aluminum: Effect of running-in in ambient air

E. Konca; Y. T. Cheng; A. M. Weiner; J. M. Dasch; A. T. Alpas

doi:10.1016/j.wear.2005.02.034

Vacuum tribological behavior of the non-hydrogenated diamond-like carbon coatings against aluminum: Effect of running-in in ambient air

E. Konca
, Y. T. Cheng
, A. M. Weiner
, J. M. Dasch
, A. T. Alpas

Producción científica: Article › revisión exhaustiva

43 Citas (Scopus)

Resumen

Magnetron sputtered non-hydrogenated diamond-like carbon (DLC) coatings have been tested against 319 Al alloy (Al-7% Si) pins in ambient air (52% RH), and under vacuum (1.07 × 10^-2 Pa). When tested at 4.9 N applied load and 0.12 m/s sliding speed, DLC coatings showed high coefficient of friction (COF = 0.52 ± 0.06) and high wear rates (4.05 × 10 ^-4 mm³/m) in vacuum compared to ambient air (COF = 0.16 ± 0.04, wear rate = 4.05 × 10^-4 mm³/m). A very low COF regime (0.006-0.02) was observed under vacuum when the tribopair was first run in ambient air for some sliding distance at the same load. Longer running-in periods and slower sliding speeds in ambient air extended the duration of the subsequent very low COF regime in vacuum. A model that considers the formation of a tribolayer on the counterface during running-in period was proposed. Formation of this tribolayer together with adsorption and dissociation of the atmospheric water on the sliding surfaces were suggested as the possible mechanisms that minimize the COF.

Idioma original	English
Páginas (desde-hasta)	795-799
Número de páginas	5
Publicación	Wear
Volumen	259
N.º	1-6
DOI	https://doi.org/10.1016/j.wear.2005.02.034
Estado	Published - jul 2005

Nota bibliográfica

Funding Information:
The authors would like to thank T.A. Perry, C.C. Ang, and M.J. Lukitsch of GM R&D Center (Warren, MI) for valuable discussions. Financial support from NSERC and GM of Canada through the Industrial Chair Program at University of Windsor is gratefully acknowledged.

Financiación

The authors would like to thank T.A. Perry, C.C. Ang, and M.J. Lukitsch of GM R&D Center (Warren, MI) for valuable discussions. Financial support from NSERC and GM of Canada through the Industrial Chair Program at University of Windsor is gratefully acknowledged.

Financiadores
University of Windsor
Natural Sciences and Engineering Research Council of Canada

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

Acceder al documento

10.1016/j.wear.2005.02.034

Otros archivos y enlaces

Citar esto

@article{541f4a1226d34821a88e6d290da870ec,

title = "Vacuum tribological behavior of the non-hydrogenated diamond-like carbon coatings against aluminum: Effect of running-in in ambient air",

abstract = "Magnetron sputtered non-hydrogenated diamond-like carbon (DLC) coatings have been tested against 319 Al alloy (Al-7\% Si) pins in ambient air (52\% RH), and under vacuum (1.07 × 10-2 Pa). When tested at 4.9 N applied load and 0.12 m/s sliding speed, DLC coatings showed high coefficient of friction (COF = 0.52 ± 0.06) and high wear rates (4.05 × 10 -4 mm3/m) in vacuum compared to ambient air (COF = 0.16 ± 0.04, wear rate = 4.05 × 10-4 mm3/m). A very low COF regime (0.006-0.02) was observed under vacuum when the tribopair was first run in ambient air for some sliding distance at the same load. Longer running-in periods and slower sliding speeds in ambient air extended the duration of the subsequent very low COF regime in vacuum. A model that considers the formation of a tribolayer on the counterface during running-in period was proposed. Formation of this tribolayer together with adsorption and dissociation of the atmospheric water on the sliding surfaces were suggested as the possible mechanisms that minimize the COF.",

keywords = "319 Al, DLC, Friction, Pin-on-disc, Transfer, Vacuum",

author = "E. Konca and Cheng, \{Y. T.\} and Weiner, \{A. M.\} and Dasch, \{J. M.\} and Alpas, \{A. T.\}",

note = "Funding Information: The authors would like to thank T.A. Perry, C.C. Ang, and M.J. Lukitsch of GM R\&D Center (Warren, MI) for valuable discussions. Financial support from NSERC and GM of Canada through the Industrial Chair Program at University of Windsor is gratefully acknowledged.",

year = "2005",

month = jul,

doi = "10.1016/j.wear.2005.02.034",

language = "English",

volume = "259",

pages = "795--799",

number = "1-6",

}

TY - JOUR

T1 - Vacuum tribological behavior of the non-hydrogenated diamond-like carbon coatings against aluminum

T2 - Effect of running-in in ambient air

AU - Konca, E.

AU - Cheng, Y. T.

AU - Weiner, A. M.

AU - Dasch, J. M.

AU - Alpas, A. T.

N1 - Funding Information: The authors would like to thank T.A. Perry, C.C. Ang, and M.J. Lukitsch of GM R&D Center (Warren, MI) for valuable discussions. Financial support from NSERC and GM of Canada through the Industrial Chair Program at University of Windsor is gratefully acknowledged.

PY - 2005/7

Y1 - 2005/7

N2 - Magnetron sputtered non-hydrogenated diamond-like carbon (DLC) coatings have been tested against 319 Al alloy (Al-7% Si) pins in ambient air (52% RH), and under vacuum (1.07 × 10-2 Pa). When tested at 4.9 N applied load and 0.12 m/s sliding speed, DLC coatings showed high coefficient of friction (COF = 0.52 ± 0.06) and high wear rates (4.05 × 10 -4 mm3/m) in vacuum compared to ambient air (COF = 0.16 ± 0.04, wear rate = 4.05 × 10-4 mm3/m). A very low COF regime (0.006-0.02) was observed under vacuum when the tribopair was first run in ambient air for some sliding distance at the same load. Longer running-in periods and slower sliding speeds in ambient air extended the duration of the subsequent very low COF regime in vacuum. A model that considers the formation of a tribolayer on the counterface during running-in period was proposed. Formation of this tribolayer together with adsorption and dissociation of the atmospheric water on the sliding surfaces were suggested as the possible mechanisms that minimize the COF.

AB - Magnetron sputtered non-hydrogenated diamond-like carbon (DLC) coatings have been tested against 319 Al alloy (Al-7% Si) pins in ambient air (52% RH), and under vacuum (1.07 × 10-2 Pa). When tested at 4.9 N applied load and 0.12 m/s sliding speed, DLC coatings showed high coefficient of friction (COF = 0.52 ± 0.06) and high wear rates (4.05 × 10 -4 mm3/m) in vacuum compared to ambient air (COF = 0.16 ± 0.04, wear rate = 4.05 × 10-4 mm3/m). A very low COF regime (0.006-0.02) was observed under vacuum when the tribopair was first run in ambient air for some sliding distance at the same load. Longer running-in periods and slower sliding speeds in ambient air extended the duration of the subsequent very low COF regime in vacuum. A model that considers the formation of a tribolayer on the counterface during running-in period was proposed. Formation of this tribolayer together with adsorption and dissociation of the atmospheric water on the sliding surfaces were suggested as the possible mechanisms that minimize the COF.

KW - 319 Al

KW - DLC

KW - Friction

KW - Pin-on-disc

KW - Transfer

KW - Vacuum

UR - https://www.scopus.com/pages/publications/23044447240

UR - https://www.scopus.com/pages/publications/23044447240#tab=citedBy

U2 - 10.1016/j.wear.2005.02.034

DO - 10.1016/j.wear.2005.02.034

M3 - Article

AN - SCOPUS:23044447240

SN - 0043-1648

VL - 259

SP - 795

EP - 799

JO - Wear

JF - Wear

IS - 1-6

ER -

Vacuum tribological behavior of the non-hydrogenated diamond-like carbon coatings against aluminum: Effect of running-in in ambient air

Resumen

Nota bibliográfica

Financiación

ASJC Scopus subject areas

Acceder al documento

Otros archivos y enlaces

Huella

Citar esto