SYMPOSIA PAPER Published: 01 January 1987
STP19426S

A New Flow-Through Slurry Erosion Wear Test

Source

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.

Author Information

Madsen, BW
Albany Research Center, Bureau of Mines, U.S. Department of the Interior, Albany, OR
Blickensderfer, R
Albany Research Center, Bureau of Mines, U.S. Department of the Interior, Albany, OR
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Details
Developed by Committee: G02
Pages: 169–183
DOI: 10.1520/STP19426S
ISBN-EB: 978-0-8031-5009-6
ISBN-13: 978-0-8031-0941-4