首页 | 本学科首页   官方微博 | 高级检索  
     


Effect of oxygen and biofilms on crevice corrosion of UNS S31803 and UNS N08825 in natural seawater
Affiliation:1. Corrosion Center for Education, Research and Technology (Corr-CERT), Curtin University, Kent Street, Bentley, WA 6102, Australia;2. School of Biomedical Sciences, Curtin University, Kent Street, Bentley, WA 6102, Australia;3. CSIRO Land and Water, Private Bag No. 5, Wembley, WA 6913, Australia;4. Chevron Energy Technology Company, Houston, TX, United States;1. Curtin Corrosion Engineering Industry Centre, School of Chemical and Petroleum Engineering, Curtin University, Technology Park, Bentley, WA, 6102, Australia;2. Centre for Infrastructure Performance and Reliability, The University of Newcastle, NSW, 2308, Australia;1. Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China;2. University of Chinese Academy of Sciences, 19 (Jia) Yuquan Road, Beijing 100039, China;3. Open Studio for Marine Corrosion and Protection, Qingdao National Laboratory for Marine Science and Technology, 1 Wenhai Road, Qingdao 266237, China;4. Center for Ocean Mega-Science, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China;1. Beijing Advanced Innovation Center for Materials Genome Engineering, Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China;2. National Materials Corrosion and Protection Data Center, University of Science and Technology Beijing, Beijing 100083, China;3. BRI Southeast Asia Network for Corrosion and Protection (MOE), Shunde Graduate School of University of Science and Technology Beijing, Foshan 528399, China;4. College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China
Abstract:The effect of oxygen and biofilms on crevice corrosion of UNS S31803 and UNS N08825 in seawater was studied. Passivity breakdown occurred through crevice corrosion in UNS N08825 and through transpassive dissolution in UNS S31803 although both alloys displayed crevice corrosion under potentiodynamic conditions. The most severe crevice corrosion occurred in the absence of oxygen and the presence of a biofilm. Microbial adhesion as investigated by fluorescence microscopy occurred mainly outside the crevice and DNA sequencing revealed a shift in biofilm composition as a function of substratum surface and oxygen pressure.
Keywords:
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号