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Volume 11
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10.3390/met11060907
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Article

Wear and Rolling Contact Fatigue Analysis of AISI 52100 Bearing Steel in Presence of Additivated Lubricants

by
Shubrajit Bhaumik
1,2 and
Viorel Paleu
3,*
1
Wagner High Quality Lubricants, Chennai 603202, India
2
Tribology and Surface Interaction Research Laboratory, Department of Mechanical Engineering, SRM Institute of Science and Technology, Kattankulathur 603203, India
3
Machine Design, Mechatronics & Robotics Department, Mechanical Engineering Faculty, Gheorghe Asachi Technical University of Iasi, 700050 Iasi, Romania
*
Author to whom correspondence should be addressed.
Metals 2021, 11(6), 907; https://doi.org/10.3390/met11060907
Submission received: 13 May 2021 / Revised: 30 May 2021 / Accepted: 31 May 2021 / Published: 2 June 2021
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Abstract

Tribological properties of lithium potassium titanate (PT), molybdenum disulphide, and tungsten disulphide-dispersed mineral oil (MO) were investigated. The sample containing 2 wt.% WS2 exhibited the lowest coefficient of friction. However, the wear scar diameters of the additivated samples were very narrow. Extreme pressure properties of mineral oil were enhanced with the addition of additives. The rolling contact fatigue results exhibited better fatigue life of the balls in MoS2 and PT-dispersed MO. Surface characterization of the balls indicated more pitting on the balls of the MO and WS2-dispersed MO as compared to MoS2 and PT, indicating a stable film in the case of MoS2 and PT, which was confirmed by the presence of additives on ball surfaces by Raman spectrograph. The results of extended rolling contact fatigue tests proved that PT-added mineral oil provided the highest life cycles of the tested balls, followed by MoS2 and WS2-added mineral oil; thus, indicating PT as a plausible alternative to MoS2 and WS2.
Keywords: lithium potassium titanate; molybdenum disulphide; tungsten disulphide; anti-wear; extreme pressure; rolling contact fatigue lithium potassium titanate; molybdenum disulphide; tungsten disulphide; anti-wear; extreme pressure; rolling contact fatigue

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MDPI and ACS Style

Bhaumik, S.; Paleu, V. Wear and Rolling Contact Fatigue Analysis of AISI 52100 Bearing Steel in Presence of Additivated Lubricants. Metals 2021, 11, 907. https://doi.org/10.3390/met11060907

AMA Style

Bhaumik S, Paleu V. Wear and Rolling Contact Fatigue Analysis of AISI 52100 Bearing Steel in Presence of Additivated Lubricants. Metals. 2021; 11(6):907. https://doi.org/10.3390/met11060907

Chicago/Turabian Style

Bhaumik, Shubrajit, and Viorel Paleu. 2021. "Wear and Rolling Contact Fatigue Analysis of AISI 52100 Bearing Steel in Presence of Additivated Lubricants" Metals 11, no. 6: 907. https://doi.org/10.3390/met11060907

APA Style

Bhaumik, S., & Paleu, V. (2021). Wear and Rolling Contact Fatigue Analysis of AISI 52100 Bearing Steel in Presence of Additivated Lubricants. Metals, 11(6), 907. https://doi.org/10.3390/met11060907

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