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Metal matrix nanocomposites in tribology: Manufacturing, performance, and mechanisms

Friction 2022年第10期10卷 1596-1634页

作者： Shuaihang PAN Kaiyuan JIN Tianlu WANG Zhinan ZHANG Long ZHENG Noritsugu UMEHARA Department of Mechanical and Aerospace Engineering University of California Los Angeles(UCLA)Los AngelesCA 90095USA Physical Intelligence Department Max Planck Institute for Intelligent SystemsStuttgart 70569Germany Stake Key Laboratory of Mechanical System and Vibration Shanghai Jiao Tong UniversityShanghai 200240China Key Laboratory of Bionic Engineering(Ministry of Education) College of Biological and Agricultural EngineeringJilin UniversityChangchun 130022China Micro-Nano Mechanical Science Laboratory Department of Micro-Nano Mechanical Science and EngineeringGraduate School of EngineeringNagoya UniversityChikisa-ku Furo-choNagoyaAichi 464-8601Japan

Metal matrix nanocomposites(MMNCs)become irreplaceable in tribology industries,due to their supreme mechanical properties and satisfactory tribological ***,due to the dual complexity of MMNC systems and tribological process,the anti-friction and anti-wear mechanisms are unclear,and the subsequent tribological performance prediction and design of MMNCs are not easily possible:A critical up-to-date review is needed for MMNCs in *** review systematically summarized the fabrication,manufacturing,and processing techniques for high-quality MMNC bulk and surface coating materials in ***,important factors determining the tribological performance(mainly anti-friction evaluation by the coefficient of friction(CoF)and anti-wear assessment with wear rate)in MMNCs have been investigated thoroughly,and the correlations have been analyzed to reveal their potential coupling/synergetic roles of tuning tribological behavior of *** importantly,this review combined the classical metal/alloy friction and wear theories and adapted them to give a(semi-)quantitative description of the detailed mechanisms of improved anti-friction and anti-wear performance in *** guarantee the universal applications of these mechanisms,their links with the analyzed influencing factors(e.g.,loading forces)and characteristic features like tribo-film have been *** approach forms a solid basis for understanding,predicting,and engineering MMNCs’tribological behavior,instead of pure phenomenology and experimental ***,the pathway to achieve a broader application for MMNCs in tribo-related fields like smart materials,biomedical devices,energy storage,and electronics has been concisely discussed,with the focus on the potential development of modeling,experimental,and theoretical techniques in MMNCs’tribological *** general,this review tries to elucidate the complex tribo-performances of MMNCs in a fundamentally universal yet straightfor

关键词： metal matrix nanocomposites nanophases tribology manufacturing processes anti-wear performance strengthening effects anti-wear mechanisms

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MoS_(2) reinforced PEEK composite for improved aqueous boundary lubrication

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Friction 2023年第9期11卷 1660-1672页

作者： Xin HOU Pengpeng BAI Jingyang LI Yuanzhe LI Hui CAO Xiangli WEN Yonggang MENG Liran MA Yu TIAN State Key Laboratory of Tribology in Advanced Equipment Department of Mechanical EngineeringTsinghua UniversityBeijing 100084China

Polyether-etherketone(PEEK)is a corrosion-resistant material that has been widely used in aqueous ***,its anti-wear performance must be improved for its application in the *** this study,to improve the anti-wear performance of PEEK for aqueous boundary lubrication,PEEK/MoS_(2)composites were prepared by ball-milling and spark plasma sintering processes.A competitive MoS_(2)mechanism between the low shear strength property and the role of promoting wear debris generation influences the anti-wear performance of PEEK/MoS_(2)*** demonstrated that the coefficients of friction(COF)and wear rate of PEEK composite with 0.25 wt%MoS_(2)were significantly reduced 68%and 94%,***,this was the first time that a PEEK composite could achieve a COF of less than 0.05 in aqueous boundary *** anti-wear performance was verified to be better than that of PEEK/carbon fiber(CF)and Thordon *** PEEK/MoS_(2)composite may be a potential material for underwater equipment because of its outstanding anti-wear performance in aqueous boundary lubrication.

关键词： polyether-etherketone(PEEK)composite MoS_(2) anti-wear performance aqueous lubrication boundary lubrication

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