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stress fields, leading to larger hardening. The hardness enhancement hence is believed to originate from the lattice mismatch. 3.3 Wear properties of multilayered coatings The friction coefficients... in a range of 0.7-1.0. The coefficient of friction increases with increasing modulation period, reaches up to about 1.0 at a modulation period of 8.5 nm, then decreases. Variation of wear loss......
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hexagonal boron nitride (h-BN) powders in preform and subsequent chemical vapor infiltration (CVI) process. Friction and wear properties of C/C-BN were investigated on an MM-1000 testing machine... effectively improve the stability of friction curves of C/C composites with a SL pyrolytic carbon texture, and cause the formation of a thin wear film on the wear surface. Key words: C/C composites; BN......
章编号:1672-7207(2015)01-0088-06 Friction and wear behavior of NiAl-2.5Ta-7.5Cr alloy at room temperature ZHANG Mengen1, WANG Zhensheng1, 2, GUO Yuanjun1, GUO Jianting3, ZHOU Lanzhang3, YANG... conducted by a universal mechanical testing machine, and the friction and wear features at room temperature were studied using a friction and wear tester of high speed reciprocating. The results show......
Mg-Al-Zn alloy hybrid composites [J]. Transactions of Nonferrous Metals Society of China, 2006, 16(s2): s1-s5. [14] QI Qing-ju, LIU Yong-bing, YANG Xiao-hong. Friction and wear characteristics of Mg... Microstructures and wear properties of graphite and Al2O3 reinforced AZ91D-Cex composites ZHANG Mei-juan(张美娟)1, 2, CAO Zhan-yi(曹占义)1, YANG Xiao-hong(杨晓红)1, LIU Yong-bing(刘勇兵)1 1. Key Laboratory......
models popular in the railway industry include Archard wear model, friction work model and wear index model. In this section, the effects of the wear models and the elastic shear deformation... on the difference among the Archard wear model, friction work model and wear index model is shown below. Furthermore, for the sake of contrastive analysis, the wheel-rail normal contact problem is solved......
Friction and wear of 7075 aluminum alloy induced by torsional fretting CAI Zhen-bing(蔡振兵), ZHU Min-hao(朱旻昊), LIN Xiu-zhou(林修洲) Tribology Research Institute, Traction Power State Key Laboratory..., more severe damages are observed and the debris layer covers the wear scars. Friction torque and dissipation energy which are strongly dependent upon the imposed angular displacement amplitudes......
]. In certain applications, magnesium alloys are submitted to unlubricated wear conditions and the failure of their products is usually caused by dynamic friction against foreign objects during service... a better tribological property than AZ91 alloy under high load [3]. Mg-25Zn-2Y quasicrystal alloy exhibits low friction coefficient and good wear resistance [7]. Dry sliding wear behaviour of ZE41A alloy has......
friction experiment was carried out in order to establish the optimum image capture with the 1045 specimen under experiment condition. The wear particle data were calculated differently according... of captured images and the amount of wear particles in one image. In this work, the lubricated friction experiment was carried out with the 1045 specimen in order to establish the optimum method......
The friction wear behavior of the hardfacing layers is given in Fig.6. It illustrates the effect of the applied load on the wear resistance of the hardfacing layers at room temperature...Microstructure and wear properties of YT758/CuZnNi hardfacing materials WANG Xin-hong(王新洪)1, ZHANG Min(张 敏)2, ZOU Zeng-da(邹增大)1, QU Shi-yao(曲仕尧)1 (1. School of Materials Science......
