Effect of P content on microstructure and wear properties of ZCuPb20Sn5 alloy

Abstract

The properties and friction behavior of ZCuPb₂₀Sn₅ modified with P were investigated. With the P addition and content increase, the second phase appeared and gradually increased in amount. Also, the microstructure of ZCuPb₂₀Sn₅ was refined and evenly distributed. The addition of P had a beneficial effect on the microstructure and properties of ZCuPb₂₀Sn₅. As the P content increased, the hardness and tensile strength of ZCuPb₂₀Sn₅ increased, but the elongation, the friction coefficient and the wear rate decreased. The wear mechanism of ZCuPb₂₀Sn₅ was mainly adhesive wear, and a small amount of debris was produced. As the P content increased, the anti-wear resistance of ZCuPb₂₀Sn₅ deteriorated.