Self-lubricating and Antifriction Characteristics of Three-dimensional Co-continuous Network Graphite / Cast Steel Composites

Abstract

The infiltration casting method is used for the preparation of three-dimensional co-continuous network graphite / cast steel composite material in atmospheric pressure. The friction and abrasion behavior of composite specimen in condition of dry sliding friction are investigated by peg-tray friction abrasion tester. The anti-wear mechanism of composite material is discussed. The results show that the relative wear resistance of the composite material is 6.5～7.1 times of graphitic cast iron, and average friction coefficient is 60.5～73.3% of graphitic cast iron. The composite material provides with good self-lubricating and anti-friction property in condition of dry sliding friction.