...Zhiqiang Liu; Jiandong Yin; Fucheng Zhao Downsizing in spark-ignited engines becomes one of the most effective concepts to achieve fuel economy and emissions requirements and drives operating conditions of major moving engine components into more mixed and boundary lubrication regimes. Piston ring...

...Salil Bapat; Ajay P. Malshe This paper reports a study of the evolution of directional texture and its role in the manipulation of tribofilm layers under boundary lubrication (BL). The use of surface protective tribofilms/lubricant chemistries along with the use of textured surfaces has gained...

... coatings that work to reduce the asperity/asperity interactions that cause micropitting [ 16 – 20 ]. Under boundary lubrication, mild wear competes with the micropitting process [ 15 ]. That is, mild wear can remove the surface layers where microcracks can initiate. Plastic deformation...

... wear film thickness vibration boundary lubrication mixed lubrication Ministry of Science and Technology, Taiwan 10.13039/501100004663 MOST 108-2221-E-150-023-MY3 Vibrations related to friction at various scales have widely been studied over the past few decades. The research...

... , “ Screening Vegetable Oil Alcohol Esters as Fuel Lubricity Enhancers ,” J. Am. Oil Chem. Soc. , 78 ( 6 ), pp. 579 – 584 . 10.1007/s11746-001-0307-y [59] Bhuyan , S. , Sundararajan , S. , Yao , L. , Hammond , E. G. , and Wang , T. , 2006 , “ Boundary Lubrication Properties...

.... , and Khatri , O. P. , 2019 , “ Pristine and Alkylated MoS 2 Nanosheets for Enhancement of Tribological Performance of Paraffin Grease Under Boundary Lubrication Regime ,” ASME J. Tribol. , 141 ( 7 ), p. 072102 . 10.1115/1.4043606 [32] Kumari , S. , Mungse , H. P. , Gusain , R...

...: apharsha.mec@itbhu.ac.in Contributed by the Tribology Division of ASME for publication in the J ournal of T ribology . 04 02 2021 30 05 2021 31 05 2021 16 06 2021 polyalphaolefins (PAO) multiwalled carbon nanotubes (MWCNTs) friction wear boundary lubrication lubricant...

... of carbide ceramics, promoting the hydrodynamic lubrication for carbide ceramics. B 4 C ceramic shows lower friction coefficients than those of SiC and B 4 C–SiC ceramics in boundary lubrication and mixed lubrication at 20 and 40 N. Email: cnzhangwei2008@126.com Email: xiaoyu970327@yahoo.co.jp...

... at the Mesoscale ,” Phys. Rev. E , 82 ( 3 ), pp. 036117 – 036135 . 10.1103/PhysRevE.82.036117 [40] Braun , O. M. , and Tosatti , E. , 2009 , “ Kinetics of Stick-Slip Friction in Boundary Lubrication ,” EPL , 88 ( 4 ), pp. 48003 – 48008 . 10.1209/0295-5075/88/48003 [41] Costagliola...

... and Modification of Aluminum Alloy Matrix Composites ,” Lasers Manuf. Mater. Process. , 5 ( 2 ), pp. 81 – 94 . 10.1007/s40516-018-0054-6 microstructure wear resistance different sliding modes babbitt alloy boundary lubrication wear Recent years have witnessed a booming of surface...

... ribology . 08 11 2020 25 01 2021 25 01 2021 23 02 2021 friction dispersants tribofilm friction modifiers boundary lubrication friction lubricant additives piston rings surface layers Improving energy efficiency of internal combustion (IC) engines is a key...

... Email: carloshwink@eaton.com Contributed by the Tribology Division of ASME for publication in the J ournal of T ribology . 28 09 2020 15 12 2020 16 12 2020 23 02 2021 bearing design and technology bearings boundary lubrication elastohydrodynamic lubrication...

...: marciocorrea@fisica.ufrn.br Email: felipebohn@fisica.ufrn.br Email: saletealves@ect.ufrn.br Contributed by the Tribology Division of ASME for publication in the J ournal of T ribology . bio-lubricants boundary lubrication friction lubricant additives Nanoparticles are a new...

... boundary lubrication elastohydrodynamic lubrication films fluid film lubrication gears lubricants mixed lubrication tribological systems wear cooling heat transfer Modern jet engines for civil applications are characterized by high bypass ratios (BPR), high pressure ratios, and high...

... lubrication friction wear boundary lubrication coatings wear mechanisms Molybdenum disulfide (MoS 2 ) is widely used to reduce friction and protect against wear of the mechanical parts. To overcome the limitation in the reducing the friction of MoS 2 , researchers have been studying...

...-active additives, crystalline nature of graphene-based nanomaterials, and the composition of tribo-interfaces. Both surface-active thickener and graphene-based nanomaterials formed a complex tribo thin film under the boundary lubrication contact. The presence of graphene-based nanomaterials in tribo thin...

... of ASME for publication in the J ournal of T ribology . 17 04 2020 13 07 2020 14 07 2020 05 08 2020 coumarin wear lubrication regime surface characterization boundary lubrication lubricant additives mixed lubrication Green additives, especially those extracted...

... friction represents 20%. By taking advantage of wear protection, lubrication and materials technologies could reduce the energy losses due to wear and friction by 40% in 15 years [ 1 ]. boundary lubrication dry friction friction sliding surface layers surface treatments 27 04 2020...

...]. There are no conflicts of interest. carbon footprint environmental protection stick-slip plant-based lubricant effect of friction toward wear adhesion bio-lubricants boundary lubrication fluid film lubrication lubricants High pollution and carbon emissions due to the excessive use of fossil...

... of ASME for publication in the J ournal of T ribology . 11 02 2020 08 05 2020 08 05 2020 08 06 2020 Ti/TiN multilayers wear nanolayered multilayer coatings reciprocating sliding contact boundary lubrication coatings friction wear wear mechanisms Tribological...