Effect of Graphite on the Friction and Wear Properties of Cu-Based Friction Materials

Abstract:

Cu-based friction materials were prepared by powder metallurgy technology. The effect of the graphite on friction and wear properties of materials was investigated. The experimental results indicate that the wear rate of the materials increased with increasing speed. The wear rate of the materials with the graphite with the size of 300~600μm decreased with increasing graphite content, indicating that the graphite size of 300~600μm showed the good lubricating effect. The lubricating film made the friction coefficient decrease. The wear resistance of materials with 100~300μm graphite was degraded at high graphite content, and the graphite size of 100~300μm has bad effect on the strength of materials. The wear debris made the friction coefficient slightly increase with the increase of graphite content. The material with the graphite content of 10% and the graphite size of 300~600μm has the best friction and wear properties.

• Periodical: Materials Science Forum (Volume 788)
• Pages: 621-626
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.788.621
• Online since: April 2014
• Authors: Jing Dan Wei*, Hua Chen
• Keywords: Cu-Based Friction Materials, Friction, Graphite, Wear

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