Influence of ZnO concentration in rapeseed oil on tribological behavior

The purpose of this paper is a comparison between rapeseed oil and soybean oil, regarding their rheological and tribological properties. Tests were performed on a Brookfield viscometer with cone-plate geometry, having the following test parameters: test type – shear rate imposed, shear rate (100...2000 s–1), temperature values between 20 °C and 75 °C. In parallel, there were proceed tribological tests on a four ball machine, for three speeds (1200, 1500 and 1800 rpm). The results of the tests highlight the better rheologial and tribological behavior of the rapeseed oil, thus it could be recommended in tribological applications.

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Tribological studies on chemically modified rapeseed oil with CuO and CeO2 nanoparticles

Proceedings of the Institution of Mechanical Engineers Part J Journal of Engineering Tribology ◽

10.1177/1350650116641328 ◽

2016 ◽

Vol 230 (12) ◽

pp. 1562-1571 ◽

Cited By ~ 21

Author(s):

Amod Kashyap ◽

AP Harsha

Keyword(s):

Rapeseed Oil ◽

Tribological Behavior ◽

Antiwear Property ◽

Ceo2 Nanoparticles ◽

X Ray Diffraction ◽

X Ray ◽

Chemically Modified ◽

Antiwear Properties ◽

Friction Reducing ◽

Reducing Properties

The environmental problems that are being caused by the mineral-based lubricants has prompted for exploring the possibility of using vegetable-based oil as a lubricant and this has become a worldwide trend. In the present study, the tribological behavior of the chemically modified rapeseed oil has been studied by using a four-ball tester. The CuO and CeO2 nanoparticles of size less than 50 nm were added to the chemically modified rapeseed oil ranging from 0.1 to 1 wt%. And the friction and antiwear properties were analyzed as per the ASTM standard D4172. The size of the nanoparticles was calculated qualitatively by using Scherrer equation with the help of X-ray diffraction analysis. Tribological results showed that the chemically modified rapeseed oil has good antiwear and friction-reducing properties than the raw rapeseed oil. The addition of oxide nanoparticles at an optimum concentration in the chemically modified rapeseed oil showed the good friction-reducing property nonetheless not good antiwear property. The surface topography of the worn ball surfaces was also studied by using a scanning electron microscope.

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Tribological behavior of rapeseed oil additivated with boron nitride

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/724/1/012046 ◽

2020 ◽

Vol 724 ◽

pp. 012046

Author(s):

D Guglea ◽

T F Ionescu ◽

D Dima ◽

C Georgescu ◽

L Deleanu

Keyword(s):

Boron Nitride ◽

Rapeseed Oil ◽

Tribological Behavior

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WEAR RESISTANCE OF ELECTRODEPOSITED Fe-W ALLOY COATINGS UNDER DRY CONDITIONS AND IN THE PRESENCE OF RAPESEED OIL

Green Tribology ◽

10.15544/greentribo.2018.04 ◽

2018 ◽

Vol 1 (1) ◽

pp. 16-23 ◽

Cited By ~ 2

Author(s):

A. Nicolenco ◽

N. Tsyntsaru ◽

T. Matijošius ◽

S. Asadauskas ◽

H. Cesiulis

Keyword(s):

Coefficient Of Friction ◽

Wear Mechanism ◽

Dry Friction ◽

Rapeseed Oil ◽

Wear Track ◽

Adhesive Wear ◽

Tribological Behavior ◽

Wear Depth ◽

Dry Conditions ◽

Oil Films

Amorphous Fe-W alloys with 25 at.% of W were electrodeposited under direct and pulse modes from glycolate-citrate bath with and without addition of polyethylene glycol. The tribological behavior of the coatings was studied at 1, 2 and 5 N loads under dry friction and in the presence of rapeseed oil films of 0.2-5.0 m thickness. The tribological behavior of obtained coatings at dry friction reveals their severe tribo-oxidation resulting in a high wear depth and coefficient of friction. Observed groove like surface with well-adhered particles inside the wear track point out on abrasive-adhesive wear mechanism of Fe-W alloys. In the presence of rapeseed oil films the wear mechanism changes, and values of coefficient of friction decrease up to 10 times compared to dry friction conditions. The optimum thickness of rapeseed oil film was 1 μm. This film has the satisfactory adhesion and uniform distribution on the surface, and could withstand up to 2 000 cycles.

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