A Methodological Approach to Assessing the Tribological Properties of Lubricants Using a Four-Ball Tribometer DOI Creative Commons
Tareq M. A. Al-Quraan, Fadi Alfaqs, Jamil Haddad

et al.

Lubricants, Journal Year: 2023, Volume and Issue: 11(11), P. 457 - 457

Published: Oct. 25, 2023

Based on the analysis of standards for testing lubricants, both liquid and plastic, a four-ball tribometer, parameters by which lubricants are evaluated, this paper proposes methodology an integral parameter estimation tribological properties. The methodological approach proposed in allows integration variety provided into one indicator. Herein, we show that developed technique is based energy takes account specific wear work test material (steel balls) lubricating medium to be investigated. results laboratory tests wide range presented: hydraulic fluids, motor transmission oils various purposes classifications. It shown magnitude can used assess effectiveness anti-wear anti-scuff additives base as well ranges their applications. This differentiation quantitative evaluation such additives. obtained allow us state all according method reproducible homogeneous, confirmed using Cochran criterion. coefficient variation during does not exceed 18%. We presented first stage selection new origins, reducing costs development implementation.

Language: Английский

Ultra-thin bentonite lubricating additive intercalated by ionic liquid: Synergistic interactions and unique tribofilm DOI

Bingyu Tian,

Fan Xu, Kun Cui

et al.

Tribology International, Journal Year: 2023, Volume and Issue: 192, P. 109221 - 109221

Published: Dec. 22, 2023

Language: Английский

Citations

6
Nanolubrication Chemistry and Its Application DOI
Smrita Singh,

Ashutosh Singh Chauhan,

Lalit Prasad

et al.

Published: April 9, 2024

Lubrication is a method to reduce friction in moving machinelike parts. However, rising demand and ongoing resource depletion urge us take essential steps save conserve energy. Nanolubrication viable option for reducing energy consumption. Nanolubricant films must be resistant adhesives, cohesiveness, stresses order effective. The way these organized, whether they are single molecules or mixed species, has big impact on how well perform. A film's most property its ability adhere surface. Physical chemical adsorption Major factors affecting molecular weight bond strength, nature of the bonds, number bonds per molecule, orientation, packing density unit area. Molecular adhesion surface can homogenous equally distributed an ideal crystalline orientations phases present at silicon have reactivity mechanical capabilities. Dangling formed when mechanically damaged thermally stimulated, producing high-energy active sites contact. Surface layers nitride carbide produced using gas vacuum. Nickel diamond-like carbon other two materials commonly used microsystems. With magnetic lubrication hard drives, drive protected by monolayer perfluoropolyether (PFPE). Commonly PFPE OH functional groups ends molecules. Colloid physics chemistry offer exciting opportunities research wear various metallurgical contexts. Different methods been developed produce nanoparticles, permitting development oil-stable dispersion selected efficient tribochemical film precursors.

Language: Английский

Citations

1
Exploring the tribological impact of micaceous additives in copper‐free automobile brake friction composites DOI

G. Sathyamoorthy,

Vijay Raghunathan,

Sanjay Mavinkere Rangappa

et al.

Journal of Vinyl and Additive Technology, Journal Year: 2024, Volume and Issue: unknown

Published: July 17, 2024

Abstract This study investigates the tribological impact of incorporating micaceous additives in copper‐free brake friction composites for automotive applications. Four pad formulations were created, each containing different amounts muscovite and phlogopite, ranging from 0% to 10% by weight. A comparison was conducted replacing mica with synthetic barites. The physical, thermal, mechanical, chemical properties fabricated composite examined. Tribological features evaluated through inertia dynamometer testing following JASO‐C‐406 schedule. Scanning electron microscope (SEM) analysis delved into contact plateau formations back transfer patches on pad's surfaces. Notably, phlogopite‐based pads exhibited enhanced thermal stability efficient heat dissipation, contributing sustained performance. Overall, comprehensive evaluation using multiple objective optimization ratio (MOORA) method positioned as optimal choice optimized braking performances. Highlights Exploration an ingredient composite. Phlogopite‐based showed better fade recovery low wear rotor wear. MOORA choice.

Language: Английский

Citations

1
A novel parallelly-arranged Ti3C2Tx resin based solid-grease composite coating with super-low friction/wear DOI
Tian Zhang, Liangliang Xiong,

Zhongpan Zhang

et al.

Tribology International, Journal Year: 2024, Volume and Issue: unknown, P. 110448 - 110448

Published: Dec. 1, 2024

Language: Английский

Citations

1
Effect of polymer additives on the tribological performance of soybean oil DOI
Soumya Ranjan Guru,

Chetla Venugopal,

Mihir Sarangi

et al.

Industrial Lubrication and Tribology, Journal Year: 2023, Volume and Issue: 75(5), P. 607 - 618

Published: May 25, 2023

Purpose This study aims to investigate the behavior of vegetable oil with two additives. Base oil’s tribological qualities can be improved help several additions. In present investigation, soybean is served as foundational due its eco-friendliness and status a additives, named polytetrafluoroethylene (PTFE) molybdenum disulfide (MoS 2 ). Design/methodology/approach As PTFE MoS are used; renowned for anti-friction (AF) properties, while solid lubricant anti-wear (AW) properties. investigation examines synergistic impact AF AW additions in oil. The lubricity base measured by using four-ball tester, wear properties at different additive amounts determined universal tribometer. Findings (at 5 Wt.%) 1 were found improve performance weld load significantly increased when Wt.% + added Originality/value A better characteristic achieved combining additives that amount less than 1% experiments highly concentrated , adequate pressure dramatically, but lubricant’s characteristics did not. Peer review peer history this article available at: https://publons.com/publon/10.1108/ILT-11-2022-0321/

Language: Английский

Citations

3
Effect of a Metal Conditioner on the Physicochemical Properties and Tribological Performance of the Engine Oil SAE 5W-30 API SN DOI Creative Commons
Oriana Palma Calabokis, Yamid E. Núñez de la Rosa, Vladimir Ballesteros Ballesteros

et al.

Lubricants, Journal Year: 2023, Volume and Issue: 11(7), P. 305 - 305

Published: July 21, 2023

Metal conditioners (MC) are added to lubricants enhance their friction and wear in pairs, mainly engines, gearboxes, rolling bearings. Its growth the Brazilian market is primarily focused on internal combustion engines. The effect of mixing MC with commercial engine oil (SAE 5W-30 API SN) was studied regarding rheological thermal properties. Also, tribological performance steel–steel contact investigated. properties were determined by flow curves (at 20, 40, 100 °C) differential scanning calorimetry (DSC), respectively. Reciprocating fully-lubricated tests performed at 40 °C 80 (Po = 1.7 GPa, 5 Hz). Differences chemical composition between SAE its mixture identified infrared spectroscopy related performance. coefficient remained within range 0.09–0.1 for all conditions, typical lubricated contacts under boundary mixed lubrication regimes. However, improved resistance around 33% when compared offered 5W-30. formation tribofilms different compositions confirmed SEM-EDS conditions. At both temperatures, reveals beneficial synergy metal conditioner fully formulated additives. showed a less severe mechanism neat study demonstrated that maintained physicochemical substantial anti-wear action °C.

Language: Английский

Citations

2
Estimating the Dry-Wear Behavior of Rolling/Sliding Bearings (PB, Gunmetal, and Al6061)–Tribo Materials DOI
Vinay Saini, Upendra Maurya, Gananath D. Thakre

et al.

Journal of Failure Analysis and Prevention, Journal Year: 2023, Volume and Issue: 23(6), P. 2439 - 2451

Published: Oct. 11, 2023

Language: Английский

Citations

2
A Methodological Approach to Assessing the Tribological Properties of Lubricants Using a Four-Ball Tribometer DOI Creative Commons
Tareq M. A. Al-Quraan, Fadi Alfaqs, Jamil Haddad

et al.

Lubricants, Journal Year: 2023, Volume and Issue: 11(11), P. 457 - 457

Published: Oct. 25, 2023

Based on the analysis of standards for testing lubricants, both liquid and plastic, a four-ball tribometer, parameters by which lubricants are evaluated, this paper proposes methodology an integral parameter estimation tribological properties. The methodological approach proposed in allows integration variety provided into one indicator. Herein, we show that developed technique is based energy takes account specific wear work test material (steel balls) lubricating medium to be investigated. results laboratory tests wide range presented: hydraulic fluids, motor transmission oils various purposes classifications. It shown magnitude can used assess effectiveness anti-wear anti-scuff additives base as well ranges their applications. This differentiation quantitative evaluation such additives. obtained allow us state all according method reproducible homogeneous, confirmed using Cochran criterion. coefficient variation during does not exceed 18%. We presented first stage selection new origins, reducing costs development implementation.

Language: Английский

Citations

2