Abstract:In order to investigate the effect of graphitecontained transfer layer on the dry friction and wear behavior of materials, a graphite-contained layer was prepared on the frictional surfaces of 45 steel. The effects of graphite-contained layer on friction coefficient, wear loss and morphologies of worn (sub) surface were studied by dry sliding test of 45 steel with a graphite layer against Cu-SiO2. The results show that, compared with the 45 steel, the 45 steel with a graphite layer has lower friction coefficient and wear loss, and the worn surface of 45 steel is relatively smooth. The graphite-contained layer plays a role in friction reducing and antiwear during the dry sliding process, which prevents the direct contact of metal friction pairs.