| 应用原子力显微镜研究硫酸盐还原菌对A3钢的腐蚀 |
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| 引用本文： | 林晶,阎永贵,陈光章,马力,钱建华. 应用原子力显微镜研究硫酸盐还原菌对A3钢的腐蚀[J]. 中国腐蚀与防护学报, 2007, 27(2): 70-73,79 |
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| 作者姓名： | 林晶 阎永贵 陈光章 马力 钱建华 |
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| 作者单位： | 腐蚀与防护国防科技重点实验室 |
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| 基金项目： | 国家自然科学基金项目三级项目 |
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| 摘 要： | 应用原子力显微镜（AFM）研究硫酸盐还原菌（SRB）、微生物膜、腐蚀产物膜和A3钢腐蚀后的表面形貌，获得了高分辨率、清晰的图像.测得了SRB的大小，微生物膜、腐蚀产物膜的厚度和形成的点蚀孔深度.结果表明，A3钢的微生物腐蚀过程是先形成致密的硫化物膜，然后微生物在其上面聚集附着形成微生物膜；A3钢的微生物腐蚀主要以点蚀形式发生.
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| 关 键 词： | 原子力显微镜 磷酸盐还原菌 微生物膜 腐蚀 |
| 文章编号： | 1005-4537（2007）02-0070-05 |
| 收稿时间： | 2005-10-26 |
| 修稿时间： | 2006-06-07 |
APPLICATION OF ATOMIC FORCE MICROSCOPY IN STUDY OF SULFATE -REDUCING BACTERIA TO A3 STEEL |
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| LIN Jing,YAN Yonggui,CHEN Guangzhang,MA Li,QIAN Jianhua. APPLICATION OF ATOMIC FORCE MICROSCOPY IN STUDY OF SULFATE -REDUCING BACTERIA TO A3 STEEL[J]. Journal of Chinese Society For Corrosion and Protection, 2007, 27(2): 70-73,79 |
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| Authors: | LIN Jing YAN Yonggui CHEN Guangzhang MA Li QIAN Jianhua |
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| Affiliation: | 1. State Key Laboratory for Marine Corrosion and Protection,Qingdao 266071 ; 2. Harbin Engineering University,Harbin 154001 ; 3. China Shipbuilding Indnstry 725 Research Institute Qingdao Branch, Qingdao 266071 |
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| Abstract: | The morphology of sulfate- reducing bacteria (SRB),microbial biofilms，corrosion product film and corroded A3 steel have been observed by atomic force microscopy (AFM).The results of high-resolution topographical images gave the information of the size of the cell， the thickness of biofilms and corrosion product film and the pitting corrosion depth. It can be concluded that compact sulphide films were formed on the surface of A3 steel and then microbiologically attached and formed biofilms during the process of microbiologically influenced corrosion.The corrosion of A3 steel mainly presents pitting corrosion character. |
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| Keywords: | atomic force microscopy sulfate - reducing bacteria biofilms corrosion product film |
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