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利用交流阻抗测试技术 ,扫描电镜及表面能谱、失重法、微生物分析等方法 ,在室内模拟条件下研究了海泥中硫酸盐还原菌对 1Cr13不锈钢腐蚀的影响 ,及在含和不含硫酸盐还原菌的海泥构成的宏电池腐蚀中 1Cr13不锈钢的腐蚀行为。试验结果表明 ,在有菌泥中 1Cr13不锈钢的自然腐蚀速度均大于在灭菌泥中 ,两者相差 5.1倍。说明海泥中硫酸盐还原菌增大了 1Cr13不锈钢的腐蚀速率。在有菌和灭菌海泥构成宏电池时 ,有菌海泥中 1Cr13不锈钢作为阳极 ,腐蚀速率比自然腐蚀状态下有所增大 ,加速率为 14 .6%。而在灭菌海泥中 1Cr13不锈钢作为阴极 ,腐蚀速率比自然腐蚀状态下有所减小。
The effects of sulphate-reducing bacteria on the corrosion of 1Cr13 stainless steel in sea mud were investigated by AC impedance test, scanning electron microscopy and surface energy spectroscopy, weight loss method and microbiological analysis. The effects of sulfate- Corrosion behavior of 1Cr13 stainless steel in macrocell corrosion caused by bacteria of reducing bacteria. The test results show that the natural corrosion rate of 1Cr13 stainless steel in the bacteria was higher than that in the sterilized mud, the difference between the two was 5.1 times. Sulfate reducing bacteria in sea mud increased the corrosion rate of 1Cr13 stainless steel. In the presence of bacteria and sterilized sea mud to form a macro battery, there is bacteria in the sea mud 1Cr13 stainless steel as the anode, corrosion rate than the natural corrosion has increased, the acceleration rate was 14.6%. In the sterilized sea mud 1Cr13 stainless steel as the cathode, the corrosion rate is lower than the natural corrosion.