Sliding Wear and Corrosion Resistance of Train Overhead Line Contact Wire
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Date
2014-09
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Addis Ababa University
Abstract
In this study, the mechanical sliding wear and corrosion resistance property of pure
copper (Cu), Cu Ag and Cu Ni Si Cr overhead contact wire were investigated by a pinon-
disc Tribometer with mechanical and electrochemical Measurement. The copper
alloys were prepared in the form of pin are forced to slide on stainless steel disc at
temperature of 28 0c and unlubricated condition at a sliding speed of 80km/hr under
normal load up to 100 N without electric current and corrosion test also conducted in
acid, rain, salt environmental condition and in notch stress. The worn surface of and wear
debris as well as the corrosion from the specimens were studied by metallurgical
microscopes and the weight loss measured by analytical balance. Finally, the Cu Ni Si Cr
copper alloy has better wear and corrosion resistance property and also takes less
purchase cost. And the material is recommended for Addis Ababa light rail transit
overhead line contact wire.
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Keywords
Overhead Line Contact Wire, Sliding Wear, Corrosion Resistance