Effect of Environmental Factors on Electrochemical Behavior of X70 Pipeline Steel in Simulated Soil Solution

Potentiodynamic polarization measurement was used to investigate the effects of temperature, dissolved ox- ygen concentration and pH on the electrochemical behavior of X70 pipeline steel in simulated solution according to the orthogonal testing method. The results showed that temperature, dissolved...

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Bibliographic Details
Published in:Journal of iron and steel research, international international, 2009-11, Vol.16 (6), p.52-57
Main Authors: ZHANG, Liang, LI, Xiao-gang, DU, Cui-wei
Format: Article
Language:English
Subjects:
Applied and Technical Physics
Corrosion
corrosion current density
Dissolution
Engineering
High strength low alloy steels
Iron and steel industry
Machines
Manufacturing
Materials Engineering
Materials Science
Metallic Materials
orthogonal testing
Physical Chemistry
Pipelines
potentiodynamic polarization measurement
Processes
Simulation
Steel making
Steels
X70 pipeline steel
X70管线钢
X70钢
土壤溶液
模拟溶液
溶解氧浓度
环境因素
电化学行为
腐蚀电流密度
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Summary:Potentiodynamic polarization measurement was used to investigate the effects of temperature, dissolved ox- ygen concentration and pH on the electrochemical behavior of X70 pipeline steel in simulated solution according to the orthogonal testing method. The results showed that temperature, dissolved oxygen concentration and pH had great influence on corrosion current density （icorr） of X70 steel. Corrosion current density of X70 steel was most influenced by dissolved oxygen concentration in simulated solution. The corrosion degree of X70 steel was the least under the environment of low temperature, deficient oxygen and weak acid.
ISSN:1006-706X
2210-3988
DOI:10.1016/S1006-706X(10)60027-1