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腐蚀科学与防护技术 2005
COMPARISON OF CORROSION BEHAVIOR OF X70 STEEL AND 16Mn STEEL IN SOILS. I:POTENTIAL AND GENERAL CORROSION RATE
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Abstract:
The curves of corrosion potential in soils vs.exposure time were inves tigated for two common used pipeline steels,X70 steel and 16Mn steel. According to the weight-loss tests and polarization curves,the comparison of t h e general corrosion rates between X70 steel and 16Mn steel was made.The results show that the corrosion potential of X70 steel is more positive by 20 mV than t hat of 16Mn steel,and general corrosion rate of X70 steel is obviously lower.In addition,the corrosion products on X70 steel are protective in short period.
