炭素鋼のスラリーによる磨耗腐食(<小特集>腐食防食小特集)

概要

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Erosion corrosion of an usual carbon steel in a variety of aqueous slurries of 10% Al_2O_3 powder composed of 0.1 M NaOH, concentrated cooling water (synthetic rather than natural), 3%NaCl, and 0.01 M HCI was investigated from the electrochemical point of view. The total weight loss, W_t, was experimentally divided into the following three terms: the mechanical loss, W_m, the corrosion loss, W_c, and the loss due to erosion corrosion, W_<ec>. W_m was measured under cathodic polarization whereby no corrosion occurred. On the other hand, W_c was obtained in the respective solutions free of alumina powder. Therefore, W_<ec> was evaluated as the difference between W_t and the sum of W_m and W_c. Of these, W_m was relatively small compared to other factors under the experimental conditions employed. The weight loss due to corrosion associating with erosion, i.e.,W_c+W_<ec>, was discussed from the electrochemical concept.
社団法人日本材料学会の論文
1984-11-15