期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2020
卷号：11
期号：4
页码：551-563
出版社：University of Mohammed Premier Oujda
摘要：This paper reports the study of the sliding wear behaviour of the Cu–alloys at ambient condition under dry, wet and 3.5% NaCl corrosive environment. Wear tests are conducted using a pin-on-disk tribometer. The applied load of 20N is used at sliding velocity of 0.385 ms-1 and sliding distance varies ranging from 115.5m-2772m. The results show that addition of Zn does not play a great role on wear properties but Al strengthens Cu and improve the wear properties especially in wet and corrosive environment because it imparts oxidation resistance by forming a tenacious alumina-rich surface film. It is indicated that frictional coefficient of pure Cu is higher because of its lower hardness. It is much greater for all the alloys in dry sliding environment than under wet and corrosive environment due to sealing effect. The worn surfaces are characterized by optical and scanning electron microscopy. The deep grooves parallel to the sliding direction are shown on the worn surface in dry sliding condition whereas in wet and corrosive environment, wear tracks displayed are smoother.
