Erosion of Phosphor Bronze under Cavitation Attack in a Mineral Oil

    Volume 14, Issue 1 (January 1986)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Page Count: 6


    Rao, BCS
    Senior Research Associate and Branch Chief, National Aeronautics and Space Administration, Lewis Research Center, Cleveland, OH

    Buckley, DH
    Senior Research Associate and Branch Chief, National Aeronautics and Space Administration, Lewis Research Center, Cleveland, OH

    Abstract

    Experimental investigations on erosion of a copper alloy, phosphor bronze, under cavitation attack in a viscous mineral oil are presented. The details of pit formation and erosion were studied using scanning electron microscopy. The mean depth of penetration, the variations in surface roughness, and the changes in erosion pit size were studied. Cavitation pits formed initially over the grain boundaries while the surface grains were plastically deformed. Erosion of surface grains occurred largely by ductile fracture involving microcracking and removal in layers. The ratio h/a of the depth h to half width a of cavitation pits increased with test duration from 0.047 to 0.55.


    Paper ID: JTE10314J

    DOI: 10.1520/JTE10314J

    ASTM International is a member of CrossRef.

    Author
    Title Erosion of Phosphor Bronze under Cavitation Attack in a Mineral Oil
    Symposium , 0000-00-00
    Committee G02