Microbiologically influenced corrosion of Cu by nitrate reducing marine bacterium Pseudomonas aeruginosa
文献类型：CNKI期刊论文
| 作者 | Yanan Pu; Wenwen Dou; Tingyue Gu; Shiya Tang; Xiaomei Han; Shougang Chen |
| 发表日期 | 2020-06-15 |
| 出处 | Journal of Materials Science & Technology
 |
| 关键词 | Cu Pseudomonas aeruginosa Biofilm Nitrate reducing bacteria Microbiologically influenced corrosion Pitting corrosion |
| 英文摘要 | The microbiologically influenced corrosion(MIC) mechanisms of copper by Pseudomonas aeruginosa as a typical strain of nitrate reducing bacteria(NRB) was investigated in this lab study.Cu was immersed in deoxygenated LB-NO_3 seawater inoculated with P.aeruginosa and incubated for 2 weeks.Results showed that this NRB caused pitting and uniform corrosion.The maximum pit depths after 7 d and 14 d in125 mL anaerobic vials with 50 mL broth were 5.1 μm and 9.1 μm,accompanied by specific weight losses of 1.3 mg/cm~2(7 d) and 1.7 mg/cm~2(14 d),respectively.Electrochemical measurements corroborated weight loss and pit depth data trends.Experimental results indicated that extracellular electron transfer for nitrate reduction was the main MIC mechanism and ammonia secreted by P.aeruginosa could also play a role in the overall Cu corrosion process. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | supported by China Postdoctoral Science Foundation （Grant Nos. 2019T120610 and 2018M640655） ; Open Fund of Shandong Key Laboratory of Corrosion Science （Grant No. KLCS201903） ; National Natural Science Foundation of China （Grant Nos. 51572249 and U1806223） |
| 卷 | v.47期:12页:12-21 |
| 语种 | 英文; |
| 分类号 | TG172.7 |
| ISSN号 | 1005-0302 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/188186]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.DepartmentofMaterialsScienceandEngineering,OceanUniversityofChina 2.ShandongKeyLaboratoryofCorrosionScience,InstituteofOceanology,ChineseAcademyofSciences 3.DepartmentofChemicalandBiomolecularEngineering,InstituteforCorrosionandMultiphaseTechnology,OhioUniversity 4.SINOPECResearchInstituteofSafetyEngineering |
| 推荐引用方式 GB/T 7714 | Yanan Pu,Wenwen Dou,Tingyue Gu,et al. Microbiologically influenced corrosion of Cu by nitrate reducing marine bacterium Pseudomonas aeruginosa. 2020. |
入库方式： OAI收割
来源：海洋研究所
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