WEAR-RESISTANCE OF TITANIUM-ALLOYED HIGH-ALUMINUM BRONZES UNDER CAVITATION

Aluminum-nickel bronzes are known to have a high cavitation-erosion resistance; this is especially true of bronzes containing 11-14% Al, which can be used to restore worn parts of hydraulic engines, marine engines, etc. Analysis of the few publications shows that additional alloying with titanium is a promising way of optimizing the chemical composition of Al-Ni bronzes in order to enhance their cavitation wear resistance and cut costs. Sufficientty detailed information about the cavitation-erosion resistance and the nature of the fracture of microvolumes, however, is not available at present. This article deals with this.