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was presented. The reactive wetting of molten Al and Cu-Si on graphite was studied by a modified sessile drop method under a vacuum, in which the contact angles were measured by ADSA software. The ...) charge-coupled device camera. The contact angles were measured from the drop profiles by a high resolution charge-coupled device camera. 3 Result The spreading kinetics of Al and Cu-Si alloys......
angle measurements Static contact angles of the probe liquids on the sample surfaces were measured using GBX contact angle meter (France) equipped with a digital camera and computer software for the contact angle calculation from the shape of the settled droplet. A liquid drop of about 3.5 μL was placed on the sample surface, and the readings of contact angles were taken automatically on the left......
Trans. Nonferrous Met. Soc. China 26(2016) 3161-3169 Effect of carburization on microstructure and rolling contact fatigue property of 95W-3.4Ni-1.6Fe heavy alloy Guang-hong WANG, Sheng-guan QU, Rui... XRD. Effect of carburization on the rolling contact fatigue (RCF) property of the alloy was studied. The results showed that the carburized layer was composed of the outer, porous WC layer......
of pins is ρ. The angular parameter at contact point M is θ. The rotation angles f2 and f1 have the relationship f2/f1=n1/n2. The numbers of pins and cycloid gear teeth are n1 and n2. The modified tooth... that potentially share the applied torque is calculated at 45°and 120°crankshaft angles, as shown in Figure 8. Under the unloaded condition, there is only one tooth pair in rigid contact due to the tooth......
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. Then, two copper plates were spread with wax on the surfaces. Wax’s main components were silicone and some grease. The contact angles of copper plate surface and wax surface were 58? and 98... surface (bigger contact angle) was analyzed based on crystal growth theory. Then, the phase change of water vapor and the process of frost growth on the copper and wax energy surfaces were......
wettability and surface electrical property were investigated by contact angle measurement and Zeta potential measurement. The results show that single 9K medium has no significant effect on the surface wettability of bornite, while the contact angles of bornite continue to decrease in the presence of bacteria, which can be attributed to the formation of intermediates of hydrophilic Cu-Fe-S......
the straight line and curve, the ABSF may lead to wheelset misaligning motion, intensify the wheel-rail lateral dynamic interaction and deteriorate wheel-rail contact state. Especially... braking; wheel-rail contact Cite this article as: LIU Peng-fei, ZHANG Kai-long, CAO Yun-qiang. Dynamic performance of six-axle locomotive subjected to asymmetric brake shoe forces [J]. Journal......
were analyzed and summarized using statistical analyses. The results demonstrate that the main types of contact among the particles are face-face, face-angle, face-edge, edge-edge, edge-angle and angle... to the water-swelling and water-disintegrable characteristics of granite residual soil. Key words: X-ray computed tomography; granite residual soil; reconstruction; regularization; particle contact......
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