書誌事項
- タイトル別名
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- Electrochemical Study on Erosion-Corrosion of Carbon Steel and Stainless Steel
- タンソ コウ ト ステンレス コウ ノ エロージョン コロージョン ニ カンス
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Erosion-corrosion behaviours of a carbon steel and a stainless steel were studied by electrochemical measurements in “jet-in-slit” sand-erosion testing. The test was conducted under the condition of slurry flow rates lower than 5m/s, pH range 1.5-7.0 and alumina particle of 4×10-5m diameter. The erosion-corrosion rate was evaluated in terms of the corrosion rate obtained by the electrochemical measurement and the erosion rate. The following results were obtained. (1) The erosion-corrosion rate of the stainless steel increases in proportion to the 4-5 powers of the flow rate. The corrosion rate, which amounts to 10-30% of the erosion-corrosion rate, increases also in proportional to the 4-5 powers of the flow rate. The corrosion is accelerated by the breakdown of passive films due to the slurry flows. (2) The erosion-corrosion rate of the carbon steels is 15-300 times higher than that of the stainless steel, and increases in proportion to the 0.5-1.0 powers of the flow rate. The corrosion rate amounts to almost all of the erosion-corrosion rate. The acceleration of the corrosion is due to the diffusion of disolved oxygen enhancement by the slurry flow. (3) Under the cathodic protection, the erosion-corrosion rate of the carbon steel decreases dramatically resulting about the same rate with the stainless steel.
収録刊行物
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- CORROSION ENGINEERING
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CORROSION ENGINEERING 36 (10), 627-635, 1987
社団法人 腐食防食協会
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詳細情報 詳細情報について
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- CRID
- 1390001206259435648
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- NII論文ID
- 130004731894
- 130006025075
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- NII書誌ID
- AN00225595
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- ISSN
- 18841155
- 00109355
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- NDL書誌ID
- 3157693
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