中国石油大学学报（自然科学版）Issue(1)：142-149,8.DOI:10.3969/j.issn.1673-5005.2015.01.021
充氢的X80高强钢在不同土壤中的电化学行为研究
Study on electrochemical behaviors of high-strength steel X80 after hydrogen charging in different soil environments
摘要
Abstract
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 spectrosco-py ( EIS) measurement. Polarization test results show that high-strength steel X80 with different charging time presents simi-lar electrochemical behaviors, which is active in both the anode and the cathode. With the increase of charging time, the cor-rosion 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.关键词
X80高强钢/充氢/极化曲线/EIS/模拟土壤溶液Key words
high-strength steel X80/hydrogen charging/polarization curve/electrochemical impedance spectroscopy ( EIS)/simulated soil solution分类
能源科技引用本文复制引用
王新华,王翠,王德国,何仁洋,唐兴华..充氢的X80高强钢在不同土壤中的电化学行为研究[J].中国石油大学学报（自然科学版）,2015,(1):142-149,8.基金项目
国家自然科学基金项目(51471011) （51471011）
国家“863”计划项目(2012AA010105) （2012AA010105）
