Tribological performance of Mn3(PO4)2 coating and PC/MoS2 coating in Rolling–Sliding and pure sliding contacts with gear oil

2021 ◽  
Vol 153 ◽  
pp. 106642 ◽  
Author(s):  
Libin Zang ◽  
Yong Chen ◽  
Yimin Wu ◽  
Hongbo Liu ◽  
Lixin Ran ◽  
...  
Keyword(s):  
Tribological Performance ◽  
Sliding Contacts ◽  
Gear Oil ◽  
Mos2 Coating

scholarly journals Effect of Zr Target Current on the Mechanical and Tribological Performance of MoS2–Zr Composite Lubricating Coatings

Coatings ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 80
Author(s):  
Wenlong Song ◽  
Zixiang Xia ◽  
Shoujun Wang ◽  
Qingge Zhang
Keyword(s):  
Mechanical Properties ◽  
Composite Coatings ◽  
Adhesive Force ◽  
Tribological Performance ◽  
Micro Hardness ◽  
Radio Frequency Magnetron Sputtering ◽  
Ion Plating ◽  
Surface Morphologies ◽  
Wear Modes ◽  
Mos2 Coating

To improve the tribological properties of pure MoS2 coating, the MoS2–Zr composite lubricating coatings were prepared on the WC/TiC/Co carbide surface utilizing radio frequency magnetron sputtering method combining with multiple arc ion plating technology. The effects of different Zr target currents on the surface morphologies, roughness, Zr content, adhesive force, thickness, microhardness and tribological behaviors of the composite coatings were systematically investigated. Results showed that the properties of MoS2 coating can be remarkably enhanced through co-deposition of a certain amount of Zr. As the Zr target current increased, the Zr content, surface roughness, thickness, and micro-hardness gradually increased, while the adhesive force of coatings increased first and then decreased. The friction behaviors and wear modes of the composite coatings both varied obviously with the increase of Zr current. The mechanism was mainly attributed to the different components and mechanical properties of the coatings caused by various Zr current.

Study on HVOF Sprayed Nickel Coated MoS2 Coatings

2012 ◽  
Vol 490-495 ◽  
pp. 3574-3577
Author(s):  
Bai Lin Zha ◽  
Xiao Jing Yuan ◽  
Li Jiang ◽  
Zhi Hong Zha
Keyword(s):  
Friction Coefficient ◽  
Abrasive Wear ◽  
Uniform Distribution ◽  
Failure Mode ◽  
Bonding Strength ◽  
Dry Friction ◽  
Tribological Performance ◽  
The Self ◽  
The Mean ◽  
Mos2 Coating

The self-lubricating coating which is dense in microstructure with low porosity and degradation is sprayed by HVOF and the spray powder is Nickel coated MoS2 with 22%wt of MoS2. The mean bonding strength and hardness of Ni-MoS2 coating is respectively about 13.68 MPa and HRB94.5. Tribological performance is evaluated by the test of dry friction coefficient, which fluctuates from 0.25 to 0.32, while the wear granule is symmetry with a uniform distribution in size, moreover, the experiment results indicate the main wear failure mode of coating is abrasive wear.

The Tribological Performance of Black Oxide Coating in Rolling/Sliding Contacts

2016 ◽  
Vol 60 (3) ◽  
pp. 557-574 ◽  
Author(s):  
V. Brizmer ◽  
K. Stadler ◽  
M. van Drogen ◽  
B. Han ◽  
C. Matta ◽  
...  
Keyword(s):  
Oxide Coating ◽  
Tribological Performance ◽  
Sliding Contacts ◽  
Black Oxide

Tribological performance and degradation of 1‐ n ‐butyl‐1‐methylpyrrolidinium methylsulfate ionic liquid in glycerol as lubricant for steel‐steel sliding contacts

2019 ◽  
Vol 31 (4) ◽  
pp. 137-149
Author(s):  
Vladimir Pejaković ◽  
Vladimir Totolin ◽  
Andjelka Ristic ◽  
Christoph Gabler ◽  
Mitjan Kalin ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Tribological Performance ◽  
Sliding Contacts

The Influence of Tribolayer Formation on Tribological Performance of Rolling/Sliding Contacts

2017 ◽  
Vol 65 (2) ◽  
Author(s):  
V. Brizmer ◽  
C. Matta ◽  
I. Nedelcu ◽  
G. E. Morales-Espejel
Keyword(s):  
Tribological Performance ◽  
Sliding Contacts

Tribological study of multi-scale textured parallel sliding contacts by considering a mixed lubrication regime and mass conservation condition

2021 ◽  
pp. 135065012110455
Author(s):  
Ramana Reddy Annadi ◽  
Ismail Syed
Keyword(s):  
Tribological Performance ◽  
Mixed Lubrication ◽  
Fluid Film ◽  
Tribological Characteristics ◽  
Sliding Contacts ◽  
Film Pressure ◽  
Surface Textures ◽  
Multi Scale ◽  
Lubrication Regime ◽  
Mixed Lubrication Regime

Surface texturing is a viable technique to enhance the tribological performance of sliding interacting contacts. Single-scaled surface textures exhibit better tribological performance only at hydrodynamic lubrication regime (fluid film pressure) but not in mixed lubrication regime where fluid film pressure and asperity contact pressure co-exists. In most of the machinery with the increase in load and/or decrease in speed, there is a shift of lubrication regime from hydrodynamic to mixed lubrication. To address this, the present work proposed a multi-scale (a combination of shallow and deep) textures concept. A numerical model is developed to study its effect on the tribological characteristics of parallel sliding contacts by considering mixed lubrication regime and mass-conservative cavitation condition. It has been observed that multi-scaled textures exhibit superior results in comparison with single-scaled textures. Moreover, improved tribological characteristics are observed when shallow surface textures are placed first towards the fluid inlet flow.

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