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腐蚀科学与防护技术 2008
COMPARATIVE STUDY ON CORROSION BEHAVIOR OF X60 STEEL AND ITS WELDING HEAT-AFFECTED ZONE
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Abstract:
The welding coarse grain heat-affected zone(CGHAZ) of X60 steel was obtained by heat simulation method.The microstructures of X60 steel and its CGHAZ were observed and analyzed,and their corrosion potential,potentiodynamic polarization curves and electrochemical impedance spectra were measured respectively.The results show that when the corrosion media made X60 steel and its CGHAZ dissolved actively,the corrosion resistance of CGHAZ was higher than that of X60 steel;when corrosion scale formed on the surfac...
