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conditions on a ball-on-disc arrangement. The evolution mechanism of coating friction coefficient was discussed. Correlation of coatings friction coefficient with sliding velocity and applied load... coefficient of PEEK + MoS2 coating increases with increasing sliding velocity. 关键词:PEEK; Coating; Friction; Cumulative probability; Uniform design; Stepwise regression; [全文内容正在添加中] ......
and the coefficient of friction of the coatings are the least for the DLC coating, which can be attributed to the process of graphitization on the DLC film. The graphite structure is responsible for the low... Evaluation of ring surfaces with several coatings for friction, wear and scuffing life Dae-Hyun CHO, Young-Ze LEE School of Mechanical Engineering, Sungkyunkwan University, 300 Chunchun-dong......
Structural considerations in friction welding of hybrid Al2O3-reinforced aluminum composites In-Duck PARK1, Choon-Tae LEE2, Hyun-Soo KIM3, Woo-Jin CHOI4, Myung-Chang KANG4 1. Busan Metropolitan... and joining efficiency in the friction welding of hybrid Al2O3-reinforced aluminum composites were conducted. Metal matrix composites (MMCs) with 37% (volume fraction) aluminum particle were joined......
, the effects of the non-uniform distribution of rolling friction coefficient on its isolation performance were analyzed by a compiled computer program. The results show that the errors associated..., the friction variability should be considered. When the structural residual displacement is concerned, the variability of rolling friction coefficient should be fully considered regardless......
condition, friction coefficient and wear loss of LY12 aluminum alloy were measured in sliding against samples of 16Mn treated by cubrizing and sulphiding respectively; In order to avoid the transfer... and sulphided samples. Results show: The surface roughness,wear rate, average friction coefficient and magnitude of friction fluctuations of LY 12 aluminum alloy cirque sliding against sulphided sample......
. But when molybdenum disulfide content exceeds 6%, the hardness and anti-bending strength will decrease gradually. The addition of MoS2 is favored to the reduction of friction coefficient of composite. The friction coefficient of composite decreases with the increase of molybdenum disulfide until the percentage of lubricant reaches 12%. In excess of this value, the friction coefficient value starts......
configuration with 500 μm amplitude. The influences of the load, frequency and aqueous media on the friction coefficient and wear loss of the film were analyzed. The results show that the friction coefficient decreases with increasing the frequency, while it presents different varied trends in the three aqueous as the load increases. The friction coefficient in different media descends as follows: rain......
and pyrocarbons as well as among the pryocarbons. The dynamic friction coefficient of the composites decreases gradually from 0.126 to 0.088 with the increase of the surface pressure from 0.5 to 2.5 MPa at the same rotary speed. Furthermore, under the constant surface pressure, the dynamic friction coefficient increases from 0.114 to 0.126 with the increase of the rotary speed from 1 500 to 2 500 r/min......
is approximately equal to the forward movement of the tool in one rotation. The equivalent plastic strain is increased with the increase of viscosity coefficient due to the increase of friction stress... is increased when the viscosity η is increased. Due to the increase of viscosity coefficient, the yield stress in the pin-plate interface is also increased and then the friction stress in the interface......
that the corrosion resistance of the Ni coating is improved owing to its grain-refinement and higher compactness. The tribological tests show that the friction coefficient of the Ni coating decreases...; corrosion resistance; friction coefficient 相对普通粗晶材料,晶粒尺寸小于100 nm的纳米材料具有优异的力学,物理,化学和电化学性能,因此吸引了材料科学工作者的广泛关注[1].在现有的纳米材料制备方法(如溶胶凝胶法,化学气相沉积法,电沉积法和机械合金化法等[2])中,电沉积法是目前研究的一个热点,研究的体系包括Ni,Co,Cu,Ni-P,Fe-Ni和......
