STP946: A New Flow-Through Slurry Erosion Wear Test

    Madsen, BW
    Metallurgist and supervisory metallurgist, Albany Research Center, Bureau of Mines, U.S. Department of the Interior, Albany, OR

    Blickensderfer, R
    Metallurgist and supervisory metallurgist, Albany Research Center, Bureau of Mines, U.S. Department of the Interior, Albany, OR

    Pages: 15    Published: Jan 1987


    Abstract

    A new flow-through slurry test developed by the Bureau of Mines significantly reduces abrasive particle degradation and contamination of wear debris in the slurry during the test. Fresh slurry is continuously fed into the test container as used slurry is discharged. Sixteen stationary specimens form the walls of the container in which the slurry is circulated by an impeller. Slurries of silica sand in water can range from 1.3 to 34 weight % solids as the sand flow ranges from 90 to 1600 g/min. An American Foundrymen's Society (AFS) 50/70 mesh test sand was used. Results of tests conducted on a variety of materials showed that the wear rate was constant with time for each material. In contrast, when no fresh slurry was added, as in a conventional slurry pot test, the wear rate decreased significantly as the test proceeded. This decrease is attributed to micropolishing of the surfaces of the abrasive particles. The relative effects of cutting wear and deformation wear during slurry erosion are described.

    Keywords:

    abrasion, accelerated tests, alloy, beneficiation, corrosion, electrochemistry, erosion, mine haulage, slurries, solids flow, steels, wear, wear tests


    Paper ID: STP19426S

    Committee/Subcommittee: G02.30

    DOI: 10.1520/STP19426S


    CrossRef ASTM International is a member of CrossRef.