506 Cu-Sn-黒鉛焼結材料の機械的性質と摩擦摩耗特性に及ぼす黒鉛サイズと添加量の影響(OS 摩擦・磨耗材料(2))

抄録

Effects of graphite size and volume fraction on mechanical and tribological properties of Cu-Sn-graphite composites produced by a powder metallurgy process were investigated in order to develop a suitable self-lubricating material. The graphite size and volume fraction were varied from 3μm to 2.3mm, and from 0 to 40 vol%, respectively. The density, microstructure, bending strength, wear rate and coefficient of friction of the sintered composites were examined. It was found that the composite containing 20 vol% graphite of 100μm in size showed the best performance in mechanical and wear properties.