Effect of mesh structure of tetrahedral amorphous carbon (ta-C) coating on friction and wear properties under base-oil lubrication condition

MMB Mustafa, N Umehara, T Tokoroyama… - Tribology …, 2020 - Elsevier
This study examined the tribological properties of novel mesh tetrahedral amorphous carbon
(Mesh ta-C). Subsequently, comparison was made with conventional ta-C and aC: H …

Long-term low-friction of Ti-overcoated and-doped DLCs: Robustly developed carbonous transfer layer with titanium

JI Kim, WY Lee, T Tokoroyama, N Umehara - Carbon, 2023 - Elsevier
Diamond-like carbon (DLC) has been under the research spotlight as an exceptional solid
lubricant. Its friction performance is depending on a well-developed transfer layer upon its …

Tribological property of ta-CNx: Ta deposited via ion beam assisted-filtered arc deposition

T Tokoroyama, Y Tagami, M Murashima, WY Lee… - Tribology …, 2022 - Elsevier
Improving the hardness of amorphous carbon nitride with tantalum was realized by using ion
beam assisted filtered arc deposition to obtain a low friction coefficient and low specific wear …

Effect of DLC film on the mitigation of white etching areas (WEAs) under dynamic loading

L Davis, P Ramkumar - Surface and Coatings Technology, 2023 - Elsevier
The premature failures in wind turbine gearbox bearings are primarily caused by the decay
of subsurface microstructure called white etching areas and white etching cracks. Severe …

The influence of lubricants on white etching areas formation in DLC-coated bearing steel under severe boundary lubrication

L Davis, A Panda, P Ramkumar - Tribology International, 2024 - Elsevier
White etching areas (WEAs) and white etching cracks (WECs) are the catastrophic
premature failure modes associated with wind turbine gearbox bearings. Several drivers …

Tribological performance and tribochemical processes in a DLC/steel system when lubricated in a fully formulated oil and base oil

S Kosarieh, A Morina, E Lainé, J Flemming… - Surface and Coatings …, 2013 - Elsevier
Diamond-like carbon (DLC) coatings show extremely good promise for a number of
applications in automotive components as they exhibit excellent tribological properties such …

Probing fatigue resistance in multi-layer DLC coatings by micro-and nano-impact: Correlation to erosion tests

SJ McMaster, TW Liskiewicz, A Neville… - Surface and Coatings …, 2020 - Elsevier
DLC coatings have seen recent use as protective coatings for flow control devices in the oil
and gas industries. Improving fatigue resistance for multi-layered DLC coatings on hardened …

The tribological property of aC: H coating with tribolayer by additive having glycerol and phosphate oxide structure

T Tokoroyama, K Tanaka, T Kani, M Murashima… - Tribology Letters, 2022 - Springer
The tribological properties of aC: H coating sliding against a SUJ2 ball, a SUJ2 roller, and
an aC: H coated roller were investigated under temperatures ranging from 20 to 80° C in …

Micro-scale impact testing-A new approach to studying fatigue resistance in hard carbon coatings

BD Beake, TW Liskiewicz, A Bird, X Shi - Tribology International, 2020 - Elsevier
Improving the fatigue resistance of DLC coatings under highly loaded repetitive contact is an
important step to increasing their performance in demanding applications. The nano-impact …

Deformation–wear transition map of DLC coating under cyclic impact loading

MFB Abdollah, Y Yamaguchi, T Akao, N Inayoshi… - Wear, 2012 - Elsevier
A new deformation–wear transition map of hydrogen-free amorphous carbon coating
(commonly known as Diamond-Like Carbon (DLC) coating) on tungsten high speed steel …