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and Springer-Verlag Berlin Heidelberg 2011 Abstract: Three kinds of aggregates were polished by genuine pneumatic rubber tyres. The initial states of surface texture and dynamic friction coefficient were... is governed by the micro-texture changes due to the differential removal of mineral component. Key words: tyre polishing; dynamic friction coefficient; aggregate surface texture; micro-texture 1......
nitrate could stabilize friction coefficient,lower wear rate and increase impact strength,and when the content of the cerous nitrate was 3.0 wt.%,the semi-metallic friction material possessed optimal performances.The different post heat treatments had an influence on the friction coefficient,wear rate and linear thermal expansion coefficient of semi-metallic friction material.The worn surface......
nitrate could stabilize friction coefficient,lower wear rate and increase impact strength,and when the content of the cerous nitrate was 3.0 wt.%,the semi-metallic friction material possessed optimal performances.The different post heat treatments had an influence on the friction coefficient,wear rate and linear thermal expansion coefficient of semi-metallic friction material.The worn surface......
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-Pb alloy are correspondingly improved largely. Optical observation and scanning electron microscopy analysis reveal that the low wear rate and lowest level in coefficient of friction at high load level... at low load to film spalling at high load and, finally, adhesive wear. Key words: pulsed electron beam; coefficient of friction; wear rate; tribolayer 1 Introduction Hypermonotectic Al......
J. Cent. South Univ. (2012) 19: 1-8 DOI: 10.1007/s11771-012-0964-y Prediction and optimization of process parameter of friction stir welded AA5083- H111 aluminum alloy using response surface... for predicting the ultimate tensile strength of AA5083-H111 aluminum alloy which is widely used in ship building industry by incorporating friction stir welding (FSW) process parameters such as tool......
Trans. Nonferrous Met. Soc. China 22(2012) 793-802 Corrosion behaviour of friction stir welded AZ61A magnesium alloy welds immersed in NaCl solutions A. DHANAPAL1, S. RAJENDRA BOOPATHY2, V... – 608 002, Chidambaram, Tamil Nadu, India Received 30 June 2011; accepted 19 September 2011 Abstract: The extruded AZ61A magnesium alloy plates of 6 mm thickness were butt welded using friction stir......
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that the addition of 8 wt.% CNTs and 8 wt.% Nb reinforcements respectively decreased the coefficient of friction (COF) of the composite by 79%. The wear volume of the composite was decreased by 23... composite; coefficient of friction 1 Introduction One of the most difficult challenges encountered in power transmission is conductor sag which is primarily due to the inelastic expansion......
that the dynamic tribological performance of materials has a good consistency with the dynamic evolution of worn surfaces. At lower temperatures, the friction coefficient and wear rate were constant, resulted from the stable worn surfaces. At higher temperatures, the friction coefficient increased gradually, while the wear rate decreased, due to the increasing contact area and Fe concentration. A fade......