Steel plate supplier

Research on friction and wear behavior of gradient nano

Yanan Liu's research works Shandong University,Jinan

Yanan Liu's 8 research works with 45 citations and 401 reads,including Edge micro-creation of Ti(C,N) cermet inserts by micro-abrasive blasting process and its tool performanceTribology Friction,Wear,and Lubrication Professional This course may be taken individually or as part of the Professional Certificate Program in Design Manufacturing.The study of friction,wear,and lubrication is of enormous practical importance,because the function of many mechanical,electromechanical,and biological systems depends on the appropriate friction and wear values.The Effect of Nanoparticles on the Real Area of Contact Aug 06,2013 Research on friction and wear behavior of gradient nano#0183;The model makes predictions of the coefficient of friction and wear using fundamental models.The results suggest that particles would reduce the real area of contact and,therefore,decrease the friction force.Also,particles could induce abrasive wear by scratching the surfaces.

Some results are removed in response to a notice of local law requirement.For more information,please see here.Research on friction and wear behavior of gradient nano

Jan 01,2018 Research on friction and wear behavior of gradient nano#0183;Most research results showed that the nano-grained layer exhibited a low friction coefficient and a better wear resistance.For example,the empirical Eq.(1) combined with Archard wear law and Hall-Petch relationship proposed by Farhat et al.[23] indicated that wear resistance can be improved by microstructural refinement.Previous123456NextFriction and Wear Reduction in Copper with a Gradient Nano Apr 04,2018 Research on friction and wear behavior of gradient nano#0183;A gradient nano-grained (GNG) surface layer is fabricated on a commercial-purity Cu sample,in which a significant reduction in the coefficient of friction and the wear loss is obtained compared to the coarse-grained and the nano-grained counterparts.A novel mild ploughing mechanism without subsurface damage has been identified in the GNG sample,giving rise to a much reduced wear

Nanotribology About Tribology

Atomic force microscopy and other surface analysis methods have enlarged the possibility to investigate friction and wear phenomena at the nano-Newton/molecular level.Increase of computational power made it possible to research friction by molecular dynamic simulations of sliding surfaces and to investigate the atomic scale contact mechanisms.Nanotribology About TribologyAtomic force microscopy and other surface analysis methods have enlarged the possibility to investigate friction and wear phenomena at the nano-Newton/molecular level.Increase of computational power made it possible to research friction by molecular dynamic simulations of sliding surfaces and to investigate the atomic scale contact mechanisms.Nano-scratch Behavior of a Bulk Zr10Al5Ti17.9Cu14.6Ni The tribological behavior of a Zr10Al5Ti17.9Cu14.6Ni (at.%) bulk amorphous alloy,in both the as-cast and annealed states,was investigated using nano-scratch tests,including ramping load scratch and multiple sliding wear techniques.The crystallization sequence of the alloy was also characterized.

Mechanical properties and deformation mechanisms of

Jul 08,2020 Research on friction and wear behavior of gradient nano#0183;View all Nature Research journals K.Revealing extraordinary intrinsic tensile plasticity in gradient nano-grained copper. N.A.,Gnanamoorthy,R. Kamaraj,M.Friction and wear behavior Mechanical properties and deformation mechanisms of Jul 08,2020 Research on friction and wear behavior of gradient nano#0183;View all Nature Research journals K.Revealing extraordinary intrinsic tensile plasticity in gradient nano-grained copper. N.A.,Gnanamoorthy,R. Kamaraj,M.Friction and wear behavior Lowering coefficient of friction in Cu alloys with stable The coefficient of friction (COF) of metals is usually high,primarily because frictional contacts induce plastic deformation underneath the wear surface,resulting in surface roughening and formation of delaminating tribolayers.Lowering the COF of metals is crucial for improving the reliability and efficiency of metal contacts in engineering applications but is technically challenging.

Lowering coefficient of friction in Cu alloys with stable

COFs of the GNG samples were measured by means of an oscillating friction and wear tester in ball-on-plate contact configuration using a WC-Co ball (10 mm in diameter) with a load of 50 N and a slide stroke of 1.0 mm at a speed of 10 mm/s.For comparison,CG (20 m in grain size) and NG Cu-5Ag samples were measured under the same conditions.Investigation on the Gradient Nanomechanical Behavior of Oct 30,2018 Research on friction and wear behavior of gradient nano#0183;Microstructure and Gradient Nanomechanical Behavior of Dental Fluorosis Enamel.The microstructures of the three enamel layers of the normal tooth,mild dental fluorosis,and severe dental fluorosis are shown in Fig.2.The outer and middle enamel rods of the normal teeth exhibited uniform diameters and were arranged in an upright manner (Fig.2a,d),while their inner enamel rodsInvestigation on the Gradient Nanomechanical Behavior of Oct 30,2018 Research on friction and wear behavior of gradient nano#0183;Microstructure and Gradient Nanomechanical Behavior of Dental Fluorosis Enamel.The microstructures of the three enamel layers of the normal tooth,mild dental fluorosis,and severe dental fluorosis are shown in Fig.2.The outer and middle enamel rods of the normal teeth exhibited uniform diameters and were arranged in an upright manner (Fig.2a,d),while their inner enamel rods

Friction,Wear and Mechanical Behavior of Nano-Objects

Figure 3 Illustration of the studies in friction,wear and mechanical behavior of nano-objects.The studies examined were single and multiple nano-object contact in dry and liquid environments,friction on single nano-objects and mechanical behavior of nano-objects during indentation and compression (Left column).Observations for each studyFriction and wear behaviors of a gradient nano-grained Oct 01,2018 Research on friction and wear behavior of gradient nano#0183;1.Introduction.Metallic materials with grains refined to the nano-meter scale usually show significantly improved hardness and strength [].In this regard,nano-grained (NG) metals and alloys are expected to possess higher wear resistance relative to their coarse-grained (CG) counterparts according to the classical Archards law [],in which the wear resistance of metallic materials is Friction and wear behavior of nano/ultrafine-grained and The dry sliding friction and wear behavior of nano/ultrafine-grained (NG/UFG),heterogeneous ultrafine-grained (HUFG),and coarse-grained (CG) austenitic stainless steels was studied.The results revealed that the wear resistance of the samples increased with

Friction and wear behavior of PI and PTFE composites for

This study discussed the friction and wear behavior of 2 dominating frictional materials of polymer composites for ultrasonic motors,polyimide (PI),and polytetrafluoroethylene (PTFE) filled by aramid fibers (AF) and molybdenum disulfide (MoS 2).To explore the wear mechanisms,the tribopair contact stress was theoretically characterized Friction and Wear of Potassium Titanate Whisker Filled Carbon fabric/phenolic composites modified with potassium titanate whisker (PTW) were prepared by a dip-coating and hot-press molding technique,and the tribological properties ofFriction and Wear Reduction in Copper with a Gradient Nano A gradient nano-grained (GNG) surface layer is fabricated on a commercial-purity Cu sample,in which a significant reduction in the coefficient of friction and the wear loss is obtained compared to the coarse-grained and the nano-grained counterparts.A novel mild ploughing mechanism without subsurface damage has been identified in the GNG sample,giving rise to a much reduced wear rate.

Friction and Wear Reduction in Copper with a Gradient Nano

A gradient nano-grained (GNG) surface layer is fabricated on a commercial-purity Cu sample,in which a significant reduction in the coefficient of friction and the wear loss is obtained compared Friction and Wear Mechanisms of TungstenCarbonFriction and Wear Reduction in Copper with a Gradient Nano-grained Surface Layer. mechanical properties and friction behavior of magnetron-sputtered V-C coatings. Lowering coefficient of friction in Cu alloys with stable gradient nanostructures.Science Advances 2016,2 (12) ,e1601942.DOI 10.1126/sciadv.1601942.Friction and Wear Mechanisms of TungstenCarbonFriction and Wear Reduction in Copper with a Gradient Nano-grained Surface Layer. mechanical properties and friction behavior of magnetron-sputtered V-C coatings. Lowering coefficient of friction in Cu alloys with stable gradient nanostructures.Science Advances 2016,2 (12) ,e1601942.DOI 10.1126/sciadv.1601942.

Friction and Wear From Elementary Mechanisms to

Keywords Tribology,Friction,Wear,Lubrication,Nano-Tribology,Macro-Tribology .Important Note All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted,as defined in their mission statements.Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable Friction and Wear From Elementary Mechanisms to Friction and Wear From Elementary Mechanisms to Macroscopic Behavior 23.09.2019 tribonet General Topics 1,188 Views In the last 25 years,the global trend to miniaturization has raised interest in frictional processes on the micro and nano scale and facilitated appearance of nanotribology as a new branch of research.Friction and Wear From Elementary Mechanisms to Friction and Wear From Elementary Mechanisms to Macroscopic Behavior 23.09.2019 tribonet General Topics 1,188 Views In the last 25 years,the global trend to miniaturization has raised interest in frictional processes on the micro and nano scale and facilitated appearance of nanotribology as a new branch of research.

Friction and Wear Behavior of Nano-Al2O3 Particles

A series of copperAl 2 O 3 composite materials (CACMs) with 0,2,4,and 6 wt.% of Al 2 O 3 (average size about 80 nm) was fabricated by powder metallurgy method.The tribologiExperimental and Numerical Investigation of Friction wear and friction reducing properties comparing to the base-oil without any nano-particle.In Battez et al.research (2008),where anti-wear behavior of nano-particles was studied,ZnO,CuO and ZrO2 were mixed with base-oil in 0.5,1 and 1.5 weight percent.They found that all nano-lubricants have less friction coefficient and wear volume than Effect of Humidity on Friction and WearA Critical ReviewThe friction and wear behavior of materials are not intrinsic properties,but extrinsic properties; in other words,they can drastically vary depending on test and environmental conditions.In ambient air,humidity is one such extrinsic parameter.This paper reviews the effects of humidity on macro- and nano-scale friction and wear of various types of materials.

Dry Sliding Friction and Wear Behavior of AA7075-Si 3 N 4

Research on friction and wear behavior of gradient nano#0183;The present investigation is aimed at identifying the influence of Si3N4 reinforcement on the mechanical and tribological behavior of AA7075-Si3N4 composite.Five different composites of AA7075 aluminum alloy reinforced by silicon nitride particles have been fabricated by the stir casting route.The percentage of silicon nitride was varied from 0-8 wt%.Cited by 12Publish Year 2018Author Xiaohui Zhao,Bo Zhao,Yu Liu,Yu Cai,Chunhua HuResearch on friction and wear behavior of gradient nano Research on friction and wear behavior of gradient nano-structured 40Cr steel induced by high frequency impacting and rolling The wear mass loss of gradient nanostructured surface is far below as-received surface as the increase of applied load.The friction and wear mechanism of as-received 40Cr steel was changed from abrasive wear to Cited by 12Publish Year 2018Author Xiaohui Zhao,Bo Zhao,Yu Liu,Yu Cai,Chunhua HuFriction and Wear Reduction in Copper with a Gradient Nano A gradient nano-grained (GNG) surface layer is fabricated on a commercial-purity Cu sample,in which a significant reduction in the coefficient of friction and the wear loss is obtained compared

Cited by 11Publish Year 2018Author Xiang Chen,Xiang Chen,Zhong Han,Ke LuFriction of stable gradient nano-grained metals

Aug 01,2020 Research on friction and wear behavior of gradient nano#0183;Nevertheless,plenty of GNG materials with novel friction behavior have hardly scratched the surface,offering endless research opportunities.Download Download high-res image (269KB) Download Download full-size image; Fig.5.Variation of COFs with initial hardness for all sorts of metals and alloys,including the CG,NG and GNG structures.Author X.Chen,X.Chen,Z.Han,X.Y.Li,K.LuPublish Year 2020(PDF) Friction of stable gradient nano-grained metalsMay 18,2020 Research on friction and wear behavior of gradient nano#0183;In this paper,a novel strategy for lowering the coefficients of friction (COFs) of metals during dry sliding is introduced by producing a gradient nano-grained (GNG) surface layer without Atomic Scale Mechanisms of Friction Reduction and Wear Friction and Wear Reduction in Copper with a Gradient Nano-grained Surface Layer.ACS Applied Materials Interfaces 2018,10 (16) ,13829-13838.DOI 10.1021/acsami.8b01205.Bien-Cuong Tran Khac,Frank W.DelRio,Koo-Hyun Chung.

Atomic Scale Mechanisms of Friction Reduction and Wear

Friction and Wear Reduction in Copper with a Gradient Nano-grained Surface Layer.ACS Applied Materials Interfaces 2018,10 (16) ,13829-13838.DOI 10.1021/acsami.8b01205.Bien-Cuong Tran Khac,Frank W.DelRio,Koo-Hyun Chung.12345NextFriction and Wear Reduction in Copper with a Gradient Nano A gradient nano-grained (GNG) surface layer is fabricated on a commercial-purity Cu sample,in which a significant reduction in the coefficient of friction and the wear loss is obtained compared to the coarse-grained and the nano-grained counterparts.A novel mild ploughing mechanism without subsurface damage has been identified in the GNG sample,giving rise to a much reduced wear rate.(PDF) A study of friction wear behaviour of nano-ferite PDF Ferrites are generally used to obtain soft magnets for domestic or industrial applications but their use in this direction had generated an Find,read and cite all the research you need

Leave A Message

If you need a quotation, please send us your detailed requirements and we will reply to you within 24 hours.

Looking for steel stock and quoted price?