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Influence of Roughness on Corrosion Resistance of Carbon Steel SAE 1020 and DOMEX® 700 MC Steel
Abstract:
The aim of this study was to investigate and compare the relationship between corrosion resistance and roughness in the samples of carbon steel SAE 1020 and DOMEX® 700 MC steel. Surfaces with different roughnesses were compared. The metal alloys were analyzed via electrochemical impedance spectroscopy (EIS), anodic potentiodynamic polarization (APP), roughness tester and scanning electron microscopy (SEM). It was observed that the samples exhibited different behavior with respect to corrosion resistance, according to the surface conditions and materials that were tested. The lowest roughness values represented the best results in the electrochemical tests. The samples of carbon steel with lower maximum depth of valleys (Rv) showed the best protection properties compared to other samples.
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441-446
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Online since:
October 2020
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© 2020 Trans Tech Publications Ltd. All Rights Reserved
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