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| CORROSION BEHAVIOR OF DIFFERENT MATERIALS IN SULFUR-BEARING SOLUTION |
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| 西安理工大学 |
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Abstract The corrosion behaviors of 45# carbon steel,1Cr18Ni9Ti,304 stainless steel,and Ni-P alloy coatings in sulfur-bearing solution were studied by potentiostatic polarization method and gravimetric method.The results showed that at lower temperatures,the effect of sulfur concentration on cathode polarization and anodic polarization of four kinds of materials is weak.The polarization curves of 1Cr18Ni9Ti and 304 stainless steel are similar,their polarizations both are typical electrochemical corrosion course,and their self-corrosion potential and self-corrosion current are similar too.Passivation appears in Ni-P alloy coatings,and diffusion controlled by anode appears in 45# carbon steel.As the temperature increases,the corrosion rate increases,and the polarization rates of 1Cr18Ni9Ti and 304 stainless steel rise,whereas the passivation of Ni-P alloy coatings weakens.1Cr18Ni9Ti,304 stainless steel and Ni-P alloy coatings are corrosion resistance materials in sulfur-bearing solution.
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Received: 27 April 2006
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