TY - JOUR
T1 - Friction characteristics of amorphous carbon coating against various 3d-transition metals
AU - Kim, Jae Il
AU - Lee, Woo Young
AU - Tokoroyama, Takayuki
AU - Murashima, Motoyuki
AU - Umehara, Noritsugu
N1 - Funding Information:
This work was supported by JSPS KAKENHI Grant Number JP22J12738 and the Korea Ministry of Trade, Industry and Energy Grant Number 20010944 .
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/10
Y1 - 2022/10
N2 - DLC has anti-friction characteristics due to the tribofilm formed by the carbon transfer to its mating material. However, its coefficient of friction depends on each mating material. This study aims to investigate a suitable mating material against diamond-like carbon coatings. We selected four 3d-transition metals (Ti, Fe, Ni and Cu) as the mating materials based on the chemical affinities for carbon, i.e., carbide formability and work of separation. Among them, Ti had the lowest coefficient of friction, followed by Fe, Ni and Cu. The structures of tribofilm formed on mating materials were characterized non-destructively using Raman spectroscopy consisting of confocal optics. It revealed that Ti could strongly attract the carbon and stably formed carbon-containing tribofilm, leading to low friction.
AB - DLC has anti-friction characteristics due to the tribofilm formed by the carbon transfer to its mating material. However, its coefficient of friction depends on each mating material. This study aims to investigate a suitable mating material against diamond-like carbon coatings. We selected four 3d-transition metals (Ti, Fe, Ni and Cu) as the mating materials based on the chemical affinities for carbon, i.e., carbide formability and work of separation. Among them, Ti had the lowest coefficient of friction, followed by Fe, Ni and Cu. The structures of tribofilm formed on mating materials were characterized non-destructively using Raman spectroscopy consisting of confocal optics. It revealed that Ti could strongly attract the carbon and stably formed carbon-containing tribofilm, leading to low friction.
KW - Carbon affinity
KW - Carbon tribofilm
KW - Diamond-like carbon
KW - Transition metal
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U2 - 10.1016/j.triboint.2022.107690
DO - 10.1016/j.triboint.2022.107690
M3 - Article
AN - SCOPUS:85132315726
SN - 0301-679X
VL - 174
JO - Tribology International
JF - Tribology International
M1 - 107690
ER -