舟形藻在假单胞菌菌膜上的附着及对316L不锈钢腐蚀的影响

腐蚀与防护, 2015, 36(7): 603-608. doi: 10.11973/fsyfh-201507002

舟形藻在假单胞菌菌膜上的附着及对316L不锈钢腐蚀的影响

管方 ^1, , 翟晓凡 ^2, , 段继周 ^3, , 张杰 ^4, , 侯保荣 ^5,

1.中国科学院海洋研究所海洋环境腐蚀与生物污损重点实验室,青岛266071;中国科学院大学,北京100049

2.中国科学院海洋研究所海洋环境腐蚀与生物污损重点实验室,青岛266071;中国科学院大学,北京100049

3.中国科学院海洋研究所海洋环境腐蚀与生物污损重点实验室,青岛,266071

4.中国科学院海洋研究所海洋环境腐蚀与生物污损重点实验室,青岛,266071

5.中国科学院海洋研究所海洋环境腐蚀与生物污损重点实验室,青岛,266071

基金项目: 国家重点基础研究发展计划(2014CB643304) 国家自然科学基金项目(40976046)

关键词：附着 , 电化学阻抗谱 , 舟形藻 , 铜绿假单胞菌PAO1 , 316L不锈钢

Attachment of Navicula on Pseudomons Aeruginosa PAO1 Biofilm and Its Corrosion Behavior on 316L Stainless Steel

Keywords： attachment , EIS , navicula , pseudomons aeruginosa PAO1 , 316 stainless steel

为了揭示海洋微藻在菌膜上的附着规律及其对金属腐蚀的影响,采用原子力显微镜测试探究舟形藻在铜绿假单胞菌菌膜条件下的附着,并通过电化学阻抗谱和动电位极化曲线方法研究菌膜存在与舟形藻附着对316L不锈钢腐蚀的影响.结果表明,在附着前期菌膜抑制舟形藻的附着,后期则促进舟形藻的附着.电化学测试结果显示,舟形藻的存在增大了316L不锈钢的腐蚀倾向,并使腐蚀速率增大;而菌膜的附着一定程度上抑制了舟形藻对316L不锈钢的腐蚀.

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