EFFECT OF PRECIPITATION STRENGTHENING IN COPPER ALLOYS ON IMPROVING IMPELLER SURFACE QUALITY TO REDUCES THE IMPACT OF CAVITATION

Abstract

In this work, the cavitation phenomenon of impellers and the effect of duable phase deposition on improving the surface quality to reduce the impact of vavitation of copper alloys were investigated. The study was carried out on two copper alloys Cu-Al-Fe and Cu-Al-Fe-Ni which have been heat treatment to create durable phase deposition. Based on the results of optical microscope, XRD, EDS and TEM, the martensite and intermetallic phases formed were enhance the hardness and wear resistance of the material.