Tribological behavior of tungsten-doped DLC coating under oil lubrication

MS2(M=Mo, W, S=S, Se) are often used as solid lubricants in high/low temperature, high load, vacuum, in which oil lubrication is failed. Although WS2 is much more expensive than MoS2, it has better high temperature properties than MoS2. Thermal decomposition method is used to produce fullerence-like WS2 nanotube on Al2O3 template using (NH4)2WS4. The fabricated WS2 nanotube’s diameter is about 100nm and its length is longer than 2µm.The morphology, microstructure and tribological behavior of WS2 nanotube are investigated by means of SEM, TEM, XRD and AFM. The friction force between Si3N4 probe of AFM with WS2 nanotube is lower than that with MoS2 powder. Similar results are also found in pin-disc tester by GCr15 pin and lubricants coating disc. The results of HETEM show that WS2 nanotube has rolling debris between the two antagonist surfaces, and MoS2 powder only has flattened debris. It may be the fullerence structure brings the chemical stability and leads to low friction.

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Tribological Behavior and Abrasion Resistance Mechanism of Laser Micro-Bulge Texturing Surface under Full Oil Lubrication

Tribology Transactions ◽

10.1080/10402004.2020.1738610 ◽

2020 ◽

Vol 63 (4) ◽

pp. 726-735 ◽

Cited By ~ 1

Author(s):

Xijun Hua ◽

Zhixiang Tian ◽

Xuan Xie ◽

Peiyun Zhang ◽

Jinfeng Xu ◽

...

Keyword(s):

Abrasion Resistance ◽

Tribological Behavior ◽

Resistance Mechanism ◽

Oil Lubrication

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Investigation of laser texture density and diameter on the tribological behavior of hydrogenated DLC coating with line contact configuration

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2017.05.037 ◽

2017 ◽

Vol 322 ◽

pp. 31-37 ◽

Cited By ~ 11

Author(s):

A. Arslan ◽

H.H. Masjuki ◽

M.A. Kalam ◽

M. Varman ◽

M.H. Mosarof ◽

...

Keyword(s):

Tribological Behavior ◽

Line Contact ◽

Dlc Coating ◽

Contact Configuration ◽

Texture Density

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Effect of DLC Coating on Tribological Behavior of Cylinder Liner-piston Ring Material Combination When Lubricated with Jatropha Oil

Procedia Engineering ◽

10.1016/j.proeng.2014.11.805 ◽

2014 ◽

Vol 90 ◽

pp. 733-739 ◽

Cited By ~ 9

Author(s):

H.M. Mobarak ◽

H.H. Masjuki ◽

E. Niza Mohamad ◽

S.M. Ashrafur Rahman ◽

K.A.H. Al Mahmud ◽

...

Keyword(s):

Piston Ring ◽

Tribological Behavior ◽

Cylinder Liner ◽

Jatropha Oil ◽

Material Combination ◽

Dlc Coating ◽

Ring Material

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Effect of diamond-like carbon coatings alloying with chromium and molybdenum on the lubricating properties of oils during friction in pair with steel

Journal of Physics Conference Series ◽

10.1088/1742-6596/2059/1/012004 ◽

2021 ◽

Vol 2059 (1) ◽

pp. 012004

Author(s):

I A Buyanovskii ◽

M M Khrushchov ◽

V D Samusenko ◽

M V Atamanov ◽

Yu I Shcherbakov

Keyword(s):

Experimental Study ◽

Magnetron Sputtering ◽

Dry Friction ◽

Tribological Behavior ◽

Tribological Characteristics ◽

Diamond Like Carbon ◽

Reactive Magnetron ◽

Carbon Coatings ◽

Dlc Coating ◽

Lubricating Properties

Abstract The results have been presented of an experimental study of the tribological behavior of diamond-like carbon coatings (DLC) doped with chromium and molybdenum obtained by reactive magnetron sputtering. The effect of alloying with these metals on the tribological characteristics of boundary lubrication of a DLC coating/steel contact has been studied for the case of three model lubricants (inactive, surfactant, and chemically active). It has been shown that doping with chromium and molybdenum improves both the tribological characteristics of coatings under dry friction and the lubricating properties of the model oils, while alloying with molybdenum provides lower coefficients of friction and less wear at dry and boundary friction than alloying with chromium.

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