Papers 530
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#1Yonggang Meng (THU: Tsinghua University)H-Index: 27
#1Yu Huang (HUST: Huazhong University of Science and Technology)H-Index: 147
#2Haiyin Cao (HUST: Huazhong University of Science and Technology)H-Index: 3
Last. Zhuxin Tian (Hubei University)H-Index: 1
view all 3 authors...
In this study, we observe that there are two threshold speeds (stability threshold speed and second threshold speed) for the long journal bearing, which is different for the short bearing. When the rotating speed is below the stability threshold speed, the stability boundary nearly coincides with the clearance circle, and the journal center gradually returns to the equilibrium point after being released at an initial point. If the rotating speed is between the stability threshold speed and the s...
#1Yawen Xue (WUT: Wuhan University of Technology)H-Index: 4
#2Chaohua Wu (WUT: Wuhan University of Technology)H-Index: 4
Last. Ahmed Mohamed Mahmoud Ibrahim (Minia University)H-Index: 11
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To improve the tribological performance of CSS-42L bearing steel, smooth surfaces (SSs), groove-textured surfaces (GSs), GSs with Sn-Ag-Cu (GSs-SAC), and GSs with Sn-Ag-Cu-Ti3C2 (GSs-SACT) were prepared on CSS-42L. In addition, experimental studies were conducted on tribological properties. The obtained results indicated that GSs-SACT exhibited the best anti-friction and noise reduction performances. These remarkable tribological performances were attributed to the synergistic effects of grooves...
#1Fu Wang (CAS: Chinese Academy of Sciences)H-Index: 25
#2Lunlin Shang (CAS: Chinese Academy of Sciences)
Last. Zhaofeng Wang (CAS: Chinese Academy of Sciences)H-Index: 35
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Polyethylene glycol derived carbon quantum dots nanofluids were synthesized via a slow thermal oxidation process. The size of carbon quantum dots was ca. 2 nm and had a decreasing trend with the increase of oxidation time. When used as lubricant in a diamond-like carbon film/bearing steel interface, the nanofluids achieved an ultra-low friction coefficient (μ ≈ 0.02), much lower than that of original polyethylene glycol (μ = 0.12). The worn surface analyses revealed that the nanofluids could eff...
#1Mei-gui Yin (INSA: Institut National des Sciences Appliquées de Lyon)H-Index: 3
#2Chaise Thibaut (INSA: Institut National des Sciences Appliquées de Lyon)
Last. Zhen-bing Cai (SWJTU: Southwest Jiaotong University)H-Index: 24
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The impact-sliding wear behavior of steam generator tubes in nuclear power plants is complex owing to the dynamic nature of the mechanical response and self-induced tribological changes. In this study, the effects of impact and sliding velocity on the impact-sliding wear behavior of a 2.25Cr1Mo steel tube are investigated experimentally and numerically. In the experimental study, a wear test rig that can measure changes in the impact and friction forces as well as the compressive displacement ov...
#1Junya Yuan (CAS: Chinese Academy of Sciences)H-Index: 11
#2Zhaozhu Zhang (CAS: Chinese Academy of Sciences)H-Index: 57
Last. Weimin Liu (CAS: Chinese Academy of Sciences)H-Index: 92
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The high specific-strength of glass fibers and exceptional self-lubrication of polytetrafluoroethylene (PTFE) fibers promote the potential application of hybrid PTFE/glass fabric composites in the tribological field, but their weak interfacial adhesion and inferior thermal properties significantly inhibit their tribological performance and reliability. Herein, a hybrid of polydopamine/silicon carbide/polyethyleneimine (PDA/SiC/PEI) functional coating was co-deposited onto the hybrid PTFE/glass f...
#1Liuyang Bai (CAS: Chinese Academy of Sciences)H-Index: 17
#1Liuyang Bai (CAS: Chinese Academy of Sciences)H-Index: 1
Last. Rendong WangH-Index: 1
view all 7 authors...
A comparative evaluation of the friction and wear behaviors of 40CrNiMoA steel and Inconel 718 alloy sliding against Si3N4 counterparts was conducted over a large temperature range from room temperature (RT) to 800 °C. The temperature-dependent tribological properties associated with the resulting chemical mitigation and structural adaptation of the solid sliding surface were clarified by surface/interface characterizations. The results revealed desirable performance in reducing friction and wea...
#1Boyu Wei (USTB: University of Science and Technology Beijing)H-Index: 3
#2Ning Kong (USTB: University of Science and Technology Beijing)H-Index: 8
Last. Bo WangH-Index: 3
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The effect of grain boundary (GB) defects on the tribological properties of MoS2 has been investigated by molecular dynamics (MD) simulations. The GB defects-containing MoS2 during scratching process shows a lower critical breaking load than that of indentation process, owing to the combined effect of pushing and interlocking actions between the tip and MoS2 atoms. The wear resistance of MoS2 with GB defects is relevant to the misorientation angle due to the accumulation of long Mo-S bonds aroun...
#1Beibei Zhang (CAS: Chinese Academy of Sciences)H-Index: 5
#2Jianzhang Wang (CAS: Chinese Academy of Sciences)H-Index: 18
Last. Fengyuan Yan (CAS: Chinese Academy of Sciences)H-Index: 29
view all 6 authors...
Tribocorrosion denotes an irreversible material degradation for several metallic components used in corrosive environments, and it arises from the interplay between chemical, mechanical, and electrochemical processes. In this study, some investigation has been performed to compare the tribocorrosion behavior of AISI 1045 steel and AISI 2205 duplex stainless steel sliding against an alumina pin in seawater. The lowering in the open circuit potential (OCP) of AISI 2205 during the tribocorrosion de...
#1Junqin Shi (NPU: Northwestern Polytechnical University)H-Index: 12
#2Xiangzheng Zhu (XJTU: Xi'an Jiaotong University)H-Index: 2
Last. Liang Fang (XJTU: Xi'an Jiaotong University)H-Index: 6
view all 4 authors...
The movement pattern of ellipsoidal nanoparticles confined between copper surfaces was examined using a theoretical model and molecular dynamics simulation. Initially, we developed a theoretical model of movement patterns for hard ellipsoidal nanoparticles. Subsequently, the simulation indicated that there are critical values for increasing the axial ratio, driving velocity of the contact surface, and lowering normal loads (i.e., 0.83, 15 m/s, and 100 nN under the respective conditions), which i...
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