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Effect of Tempered Martensite and Ferrite/Bainite on Corrosion Behavior of Low Alloy Steel Used for Flexible Pipe Exposed to High-Temperature Brine Environment

Journal Article


Abstract


  • Immersion experiments and electrochemical measurements were carried out to study the effect of tempered martensite and ferrite/bainite on corrosion behavior of low alloy steel used for flexible pipe exposed to high-temperature brine environment in terms of microstructure morphology, corrosion rate, corrosion products characteristics, potentiodynamic polarization curves and electrochemical impedance spectroscopy. The experimental results indicated that the proportion of high-angle grain boundaries of tempered martensite steel was greater than ferrite/bainite steel. The corrosion rate of ferrite/bainite steel was lower than tempered martensite steel. With increasing immersion time, the structure of corrosion products formed on the surface of ferrite/bainite steel was more compact and denser than tempered martensite steel. In addition, the current density of ferrite/bainite steel was lower than tempered martensite steel. The charge transfer resistance and total impedance of ferrite/bainite steel were larger than tempered martensite steel. Thus, the corrosion resistance of ferrite/bainite steel exposed to high-temperature brine environment was excellent compared to the tempered martensite steel.

UOW Authors


  •   Su, Guanqiao (external author)

Publication Date


  • 2018

Citation


  • Zhang, D., Gao, X., Su, G., Liu, Z., Yang, N., Du, L., & Misra, R. D. K. (2018). Effect of Tempered Martensite and Ferrite/Bainite on Corrosion Behavior of Low Alloy Steel Used for Flexible Pipe Exposed to High-Temperature Brine Environment. Journal of Materials Engineering and Performance, 27(9), 4911-4920. doi:10.1007/s11665-018-3587-0

Scopus Eid


  • 2-s2.0-85052861155

Web Of Science Accession Number


Start Page


  • 4911

End Page


  • 4920

Volume


  • 27

Issue


  • 9

Abstract


  • Immersion experiments and electrochemical measurements were carried out to study the effect of tempered martensite and ferrite/bainite on corrosion behavior of low alloy steel used for flexible pipe exposed to high-temperature brine environment in terms of microstructure morphology, corrosion rate, corrosion products characteristics, potentiodynamic polarization curves and electrochemical impedance spectroscopy. The experimental results indicated that the proportion of high-angle grain boundaries of tempered martensite steel was greater than ferrite/bainite steel. The corrosion rate of ferrite/bainite steel was lower than tempered martensite steel. With increasing immersion time, the structure of corrosion products formed on the surface of ferrite/bainite steel was more compact and denser than tempered martensite steel. In addition, the current density of ferrite/bainite steel was lower than tempered martensite steel. The charge transfer resistance and total impedance of ferrite/bainite steel were larger than tempered martensite steel. Thus, the corrosion resistance of ferrite/bainite steel exposed to high-temperature brine environment was excellent compared to the tempered martensite steel.

UOW Authors


  •   Su, Guanqiao (external author)

Publication Date


  • 2018

Citation


  • Zhang, D., Gao, X., Su, G., Liu, Z., Yang, N., Du, L., & Misra, R. D. K. (2018). Effect of Tempered Martensite and Ferrite/Bainite on Corrosion Behavior of Low Alloy Steel Used for Flexible Pipe Exposed to High-Temperature Brine Environment. Journal of Materials Engineering and Performance, 27(9), 4911-4920. doi:10.1007/s11665-018-3587-0

Scopus Eid


  • 2-s2.0-85052861155

Web Of Science Accession Number


Start Page


  • 4911

End Page


  • 4920

Volume


  • 27

Issue


  • 9