Jet Slurry Corrosive Wear of High-Chromium Cast Iron and High-Carbon Steel Grinding Ball Alloys

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Abstract
Samples of high-chromium cast iron and high-carbon steel grinding balls were subjected to jet slurry impingement in an electrochemically instrumented apparatus. The jet velocity was 6.6 m/s. Quartz and chalcopyrite slurries containing 15% solids were used at pH values ranging from 5 to 11. Pure wear rates were obtained by cathodic protection, while pure corrosion rates were obtained by the polarization resistance technique. A synergistic effect was found between corrosion and wear.

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