Elevated temperature tribological behavior of non-hydrogenated diamond-like carbon coatings against 319 aluminum alloy

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

doi:10.1016/j.surfcoat.2005.02.202

Elevated temperature tribological behavior of non-hydrogenated diamond-like carbon coatings against 319 aluminum alloy

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

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

76 Scopus citations

Abstract

Diamond-like carbon (DLC) coatings are promising candidates for dry machining of aluminum alloys since in ambient conditions aluminum has much less tendency to adhere to the DLC coating surfaces compared to other hard coatings such as TiN, TiAlN and CrN. In an attempt to better understand the tribological properties of the DLC coatings for cutting tool coating applications, non-hydrogenated DLC coatings were produced by magnetron sputtering and their elevated temperature friction and wear behavior were studied. DLC coated M2 tool steel discs were tested against 319 Al pins using a high-temperature tribometer. Counterface materials of tungsten carbide (WC) and sapphire (Al₂ O₃) balls were also tested for comparison. Tests were done at 25, 120, 300 and 400 °C in air. The wear resistance of the DLC coating has been found to be poor at elevated temperatures. The mechanisms that provide the high wear resistance of the coating in ambient temperature cease to operate at temperatures as low as 120 °C. Annealing at elevated temperatures in air causes oxidation of the coating. Although much softer than WC and sapphire, the 319 Al alloy causes the most severe wear to the DLC coating. A two- and three-body abrasive wear model is proposed to explain this surprising observation.

Original language	English
Pages (from-to)	3996-4005
Number of pages	10
Journal	Surface and Coatings Technology
Volume	200
Issue number	12-13
DOIs	https://doi.org/10.1016/j.surfcoat.2005.02.202
State	Published - Mar 31 2006

Bibliographical note

Funding Information:
The authors would like to express their sincere thanks to M.J. Lukitsch, R.A. Waldo, M.C. Militello, C.C. Ang, and J. Robinson for their valuable assistance in analyzing the samples. Authors would like to thank Dr. T.A. Perry for valuable discussions. Teer Coatings Ltd. (Worcestershire, UK) is acknowledged for the DLC coatings received. Financial support from NSERC and GM of Canada through the Industrial Research Chair Program at the University of Windsor is gratefully acknowledged. E. Konca is thankful to the Chemical and Environmental Sciences Lab. of G.M R&D Center (Warren, MI, USA) for the internship provided in summer 2003.

Funding

The authors would like to express their sincere thanks to M.J. Lukitsch, R.A. Waldo, M.C. Militello, C.C. Ang, and J. Robinson for their valuable assistance in analyzing the samples. Authors would like to thank Dr. T.A. Perry for valuable discussions. Teer Coatings Ltd. (Worcestershire, UK) is acknowledged for the DLC coatings received. Financial support from NSERC and GM of Canada through the Industrial Research Chair Program at the University of Windsor is gratefully acknowledged. E. Konca is thankful to the Chemical and Environmental Sciences Lab. of G.M R&D Center (Warren, MI, USA) for the internship provided in summer 2003.

Funders	Funder number
University of Windsor
Natural Sciences and Engineering Research Council of Canada

Keywords

Aluminum
DLC
Friction
Pin on disc
Temperature
Wear

ASJC Scopus subject areas

General Chemistry
Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.surfcoat.2005.02.202

Cite this

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title = "Elevated temperature tribological behavior of non-hydrogenated diamond-like carbon coatings against 319 aluminum alloy",

abstract = "Diamond-like carbon (DLC) coatings are promising candidates for dry machining of aluminum alloys since in ambient conditions aluminum has much less tendency to adhere to the DLC coating surfaces compared to other hard coatings such as TiN, TiAlN and CrN. In an attempt to better understand the tribological properties of the DLC coatings for cutting tool coating applications, non-hydrogenated DLC coatings were produced by magnetron sputtering and their elevated temperature friction and wear behavior were studied. DLC coated M2 tool steel discs were tested against 319 Al pins using a high-temperature tribometer. Counterface materials of tungsten carbide (WC) and sapphire (Al2 O3) balls were also tested for comparison. Tests were done at 25, 120, 300 and 400 °C in air. The wear resistance of the DLC coating has been found to be poor at elevated temperatures. The mechanisms that provide the high wear resistance of the coating in ambient temperature cease to operate at temperatures as low as 120 °C. Annealing at elevated temperatures in air causes oxidation of the coating. Although much softer than WC and sapphire, the 319 Al alloy causes the most severe wear to the DLC coating. A two- and three-body abrasive wear model is proposed to explain this surprising observation.",

keywords = "Aluminum, DLC, Friction, Pin on disc, Temperature, Wear",

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 express their sincere thanks to M.J. Lukitsch, R.A. Waldo, M.C. Militello, C.C. Ang, and J. Robinson for their valuable assistance in analyzing the samples. Authors would like to thank Dr. T.A. Perry for valuable discussions. Teer Coatings Ltd. (Worcestershire, UK) is acknowledged for the DLC coatings received. Financial support from NSERC and GM of Canada through the Industrial Research Chair Program at the University of Windsor is gratefully acknowledged. E. Konca is thankful to the Chemical and Environmental Sciences Lab. of G.M R&D Center (Warren, MI, USA) for the internship provided in summer 2003.",

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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 express their sincere thanks to M.J. Lukitsch, R.A. Waldo, M.C. Militello, C.C. Ang, and J. Robinson for their valuable assistance in analyzing the samples. Authors would like to thank Dr. T.A. Perry for valuable discussions. Teer Coatings Ltd. (Worcestershire, UK) is acknowledged for the DLC coatings received. Financial support from NSERC and GM of Canada through the Industrial Research Chair Program at the University of Windsor is gratefully acknowledged. E. Konca is thankful to the Chemical and Environmental Sciences Lab. of G.M R&D Center (Warren, MI, USA) for the internship provided in summer 2003.

PY - 2006/3/31

Y1 - 2006/3/31

N2 - Diamond-like carbon (DLC) coatings are promising candidates for dry machining of aluminum alloys since in ambient conditions aluminum has much less tendency to adhere to the DLC coating surfaces compared to other hard coatings such as TiN, TiAlN and CrN. In an attempt to better understand the tribological properties of the DLC coatings for cutting tool coating applications, non-hydrogenated DLC coatings were produced by magnetron sputtering and their elevated temperature friction and wear behavior were studied. DLC coated M2 tool steel discs were tested against 319 Al pins using a high-temperature tribometer. Counterface materials of tungsten carbide (WC) and sapphire (Al2 O3) balls were also tested for comparison. Tests were done at 25, 120, 300 and 400 °C in air. The wear resistance of the DLC coating has been found to be poor at elevated temperatures. The mechanisms that provide the high wear resistance of the coating in ambient temperature cease to operate at temperatures as low as 120 °C. Annealing at elevated temperatures in air causes oxidation of the coating. Although much softer than WC and sapphire, the 319 Al alloy causes the most severe wear to the DLC coating. A two- and three-body abrasive wear model is proposed to explain this surprising observation.

AB - Diamond-like carbon (DLC) coatings are promising candidates for dry machining of aluminum alloys since in ambient conditions aluminum has much less tendency to adhere to the DLC coating surfaces compared to other hard coatings such as TiN, TiAlN and CrN. In an attempt to better understand the tribological properties of the DLC coatings for cutting tool coating applications, non-hydrogenated DLC coatings were produced by magnetron sputtering and their elevated temperature friction and wear behavior were studied. DLC coated M2 tool steel discs were tested against 319 Al pins using a high-temperature tribometer. Counterface materials of tungsten carbide (WC) and sapphire (Al2 O3) balls were also tested for comparison. Tests were done at 25, 120, 300 and 400 °C in air. The wear resistance of the DLC coating has been found to be poor at elevated temperatures. The mechanisms that provide the high wear resistance of the coating in ambient temperature cease to operate at temperatures as low as 120 °C. Annealing at elevated temperatures in air causes oxidation of the coating. Although much softer than WC and sapphire, the 319 Al alloy causes the most severe wear to the DLC coating. A two- and three-body abrasive wear model is proposed to explain this surprising observation.

KW - Aluminum

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KW - Friction

KW - Pin on disc

KW - Temperature

KW - Wear

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VL - 200

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JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

IS - 12-13

ER -

Elevated temperature tribological behavior of non-hydrogenated diamond-like carbon coatings against 319 aluminum alloy

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

Access to Document

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