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http://dx.doi.org/10.9725/kstle.2007.23.2.066

A Study of Sliding Friction and Wear Properties for Bronze added $Cu_2S$ as Solid Lubricants  

Lee, Han-Young (Dept. of Advanced Materials Eng. Keimyung University)
Ikenaga, Akira (Dept. of Materials Science and Eng., Osaka Prefecture University)
Publication Information
Tribology and Lubricants / v.23, no.2, 2007 , pp. 66-72 More about this Journal
Abstract
[ $MoS_2$ ], is a well-known metal sulfide applied as solid lubricants and an additive to prolong the life of sintered bearings under severe conditions. However, the high price of $MoS_2$ limited its wide application. This study is aimed to investigate the possibility far application to solid lubricants for $Cu_2S$ as a substitute of $MoS_2$. Bronzes added $Cu_2S$ and $MoS_2$, are produced by powder metallurgy in this study, and then evaluated their friction and wear properties., as well as sintered bronze. The sliding wear test using pin-on-disc type machine, was conducted at several sliding speeds for three type test pieces sintered bronzes added $Cu_2S$ and $MoS_2$, and sintered bronze without lubricants. Addition of $Cu_2S$ to bronze leads to relatively good friction properties, although it is not so good as addition of $MoS_2$. However, the wear properies of sintered bronze added $Cu_2S$ are better than that of sintered bronze added $MoS_2$.
Keywords
solid lubricants; $Cu_2S$; $MoS_2$; sliding wear and friction; powder metallurgy;
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