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电化学  2006 

生物膜和腐蚀产物膜对A3钢的腐蚀作用研究

, PP. 93-97

Keywords: SRB,硫离子,硫化物,生物膜,A3钢

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Abstract:

应用电化学方法和表面分析技术(AFM和SEM)研究硫酸盐还原菌(SRBB)(生物环境)及其腐蚀产物(非生物环境)对A3钢腐蚀行为的影响以及A3钢在两种不同环境下的腐蚀特征.结果表明:于不同时期生成的微生物膜和腐蚀产物膜,对材料的腐蚀起着不同的作用.生成的生物膜越厚越容易剥落,而不均匀的微生物膜将引起材料的局部腐蚀.在非生物环境中生成的腐蚀产物膜比在生物环境中生成的膜更加紧密地黏附于金属的表面.

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