The effect of aging heat treatment on the sliding wear behaviour of Cu–Al–Fe alloys

Aluminium bronze is one of the versatile wear resisting engineering materials that work under a corrosive environment with high stress. Alloys were produced by casting of C95200 and C95300 aluminium bronzes and aged. Wear behaviors, friction coefficient, and microstructure were investigated. The results indicated that a suitable aging treatment resulted in the formation of smaller alpha grains than their cast condition. These small alpha grains could improve the hardness and wear resistance of Cu–Al–Fe alloys. But with increasing aging temperature, the wear rate of the aged Cu–Al–Fe alloys initially decreased and then began to increase.