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利用间歇式方法培养硫酸盐还原菌和需钠弧菌,并采用自腐蚀电位、极化曲线、冷场扫描电镜观察等方法,研究了白铜在海洋优势菌种硫酸盐还原菌和需钠弧菌共同作用下的腐蚀电化学行为。结果表明:海洋微生物的存在加速了白铜的腐蚀进程;硫酸盐还原菌在混合菌种培养基中对白铜的腐蚀起主导作用;硫酸盐还原菌和需钠弧菌共同作用下基体表面团聚现象严重,倾向于发生点蚀;微生物对基体腐蚀影响严重程度依次为:硫酸盐还原菌、混合菌、需钠弧菌、无菌。
Sulfate-reducing bacteria and Pseudomonas aeruginosa were cultured by intermittent method. The effects of sulfate-reducing bacteria and Sulfate-dependent Vibrio parahaemolyticus on the marine dominant strains were studied by self-corrosion potentials, polarization curves and cold field scanning electron microscopy. Corrosion electrochemical behavior under action. The results showed that: the presence of marine microorganisms accelerated the corrosion process of white copper; Sulfate-reducing bacteria played a leading role in the corrosion of the white copper in the mixed culture medium; the surface agglomeration of Sulfate-reducing bacteria , Tend to occur pitting; The severity of microbial corrosion on the substrate were: sulfate-reducing bacteria, mixed bacteria, Vibrio spp., Sterile.