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Deformed texture of copper processed by equal channel angular pressing via different angle routes WU Bao-lin(武保林)1, HUANG Zhen-wei(黄震威)1, ZHANG Yu-dong(张宇东)1, 2, BAO Lei(宝 磊)1 , C. ESLING2 1... is corresponded with that of rolling deformation modes. Cold-deformed texture was investigated. The results show that the texture character in pure copper processed by ECAP is related with intersection angle (F......
crack propagates to the top tip of embedded crack, except when the dip angle is 90°. Side cracks which are more fully developed in the rocks containing embedded cracks tend to propagate towards... of crack and cutting energy. And the results show that breaking efficiency can be treated as a decreasing or a increasing function when the dip angle is less or larger than 30°, respectively......
of the internal friction angle was taken into account in the analysis of the supporting forces. From the perspective of upper bound theorem, the upper bound solutions of supporting pressure were... of cohesion and internal frictional angle impose a significant effect on the supporting pressure, which indicates that above factors should be considered in the actual engineering.Key words:tunnel face......
of the local fan, the dust concentration in the working area is reduced by 80%. Although the working environment at the tunnel face is largely guaranteed, the problem of the dead angle that the airflow cannot......
. The lamellar cohesion, oxide inclusions and porosity were critical factors that controlled the fretting wear resistance. In the view of contact mechanics, the fretting wear behavior of plasma spraying coatings was characterized. 关键词:Plasma spraying; Coating; Fretting wear; Fatigue delamination; Contact mechanics; [全文内容正在添加中] ......
to validate the rationale and accuracy of the proposed numerical approach. Parametric analysis was subsequently conducted to investigate the influence of inclination angle, and length on the crack propagation behavior, failure mode, energy evolution, and displacement distribution of the surrounding rock. The results show that the inclination angle strongly affects tunnel stability, and the failure......
on contact heat transfer between GH4169 and 5CrMnMo XING Lei, ZHANG Li-wen, ZHANG Xing-zhi (School of Materials Science and Engineering, Dalian University of Technology, Dalian 116085, China) Abstract: Based on the principles of conduction heat transfer, a thermal contact model which was predigested rationally was established. Contact heat transfer coefficient between GH4169 super alloy......
carbonitriding with a nitrogen content of more than 0.6 mass%.We performed a drivetrain durability test on an automatic transmission component designed to have excellent contact fatigue strength and a tooth root... that of conventionally manufactured steel. 关键词:Carbonitriding; Nitrogen; Shot peening; Contact fatigue strength; Pitting; Gear; [全文内容正在添加中] ......
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analysis, electrophoretic light scattering, contact angle measurement and infrared spectroscopy. The studies were performed on single minerals with size ≤20 μm by varying several parameters, including...; zeta potential; contact angle; butyl xanthate (KBX); ammonium dibutyl dithiophosphate (ADD); kerosene 1 Introduction Froth flotation only well responds to mineral particles in a narrow size range......