SEDL / STP / STP946-EB / STP19423S

Jet-in-Slit and Vibratory Methods for Slurry Erosion-Corrosion Tests of Materials

Oka, Y
Assistant and professor, Hiroshima University, Saijo, Higashi-Hiroshima,

Matsumura, M
Assistant and professor, Hiroshima University, Saijo, Higashi-Hiroshima,

Yamawaki, M
Senior research metallurgist, Mazda Pump Manufacturing Co., Nogami, Takarazuka,

Sakai, M
Senior staff scientist, Chubu Electric Power, Inc., Central Technical Research Laboratory, Nagoya,

Pages: 14    Published: Jan 1987

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Abstract

Slurry erosion-corrosion tests were conducted on metallic materials of practical use by two kinds of testing apparatuses. One is a vibratory apparatus which uses a magnetostriction vibratory unit commonly used for the accelerated cavitation testing of materials. The other is a jet-in-slit apparatus by which a jet of slurry impinges on the test surface. The test results obtained by each apparatus showed a good agreement in the order of merit of the materials. The test results of the jet-in-slit apparatus agreed with the actual service performance of the material in relative magnitude of damage rates.

By making a comparison of the erosion-corrosion parameters between the testing apparatuses and the actual service conditions in the field, the testing conditions required for quantitative assessment of erosion-corrosion damage were discussed.