Study on electrochemical behaviors of high-strength steel X80 after hydrogen charging in different soil environments - 文章详情页

作者：

Wang, Xinhua (Wang, Xinhua.) (学者：王新华) | Wang, Cui (Wang, Cui.) | Wang, Deguo (Wang, Deguo.) | He, Renyang (He, Renyang.) | Tang, Xinghua (Tang, Xinghua.)

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摘要：

The　pipeline　steel　X80　after　electrochemical　hydrogen　charging　with　different　time　in　four　simulated　soil　solutions　(Geermu,　Dagang,　Daqing　and　Lasa)　was　investigated　using　the　polarization　test　and　electrochemical　impedance　spectroscopy　(EIS)　measurement.　Polarization　test　results　show　that　high-strength　steel　X80　with　different　charging　time　presents　similar　electrochemical　behaviors,　which　is　active　in　both　the　anode　and　the　cathode.　With　the　increase　of　charging　time,　the　corrosion　potential　decreases　and　corrosion　current　density　increases　in　the　same　simulated　soil　solution.　The　rank　of　charge　transfer　resistance　from　the　lowest　to　the　highest　is　Geermu,　Dagang,　Daqing　and　Lasa　at　the　same　hydrogen　charging　time.　The　maximum　electrical　conductivity　of　soil　solution　leads　to　the　highest　corrosion　rate　of　X80　steel　in　Geermu　simulated　soil　solution.　©,　2015,　University　of　Petroleum,　China.　All　right　reserved.

关键词：

Charge transfer Charging time Corrosion rate Electrochemical corrosion Electrochemical impedance spectroscopy Electrodes High strength steel Hydrogen Polarization Soil moisture Solution mining Spectroscopy Steel corrosion Steel testing Underground corrosion

作者机构：

[ 1 ] [Wang, Xinhua]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Wang, Cui]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Wang, Deguo]College of Mechanical and Transportation Engineering in China University of Petroleum, Beijing; 102249, China
[ 4 ] [He, Renyang]China Special Equipment Inspection and Research Institute, Beijing; 100013, China
[ 5 ] [Tang, Xinghua]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing; 100124, China

通讯作者信息：

王新华
[wang, xinhua]college of mechanical engineering and applied electronics technology, beijing university of technology, beijing; 100124, china

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wxhemma2005@163.com

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