Effects of FeNiN phases on the corrosion behavior in 2205 duplex steels

Corrosion resistance is of practical importance for the application of 2205 duplex steels in chemical industries. For taking an insight into pitting corrosion behavior, electrolysis was employed to distinguish the 2205 duplex steel samples. In the following, X-ray diffraction, scanning electron microscopy and electron backscattering diffraction are used to characterize the regions with superior and inferior corrosion performance, thus constructing the relationship between the microstructure and their corrosion behavior.

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In this study, electrolysis was used to distinguish 2205 duplex steel samples with different corrosion performance. X-ray diffraction, scanning electron microscopy, and electron backscattering diffraction were employed to characterize the microstructure and corrosion behavior of regions with superior and inferior corrosion performance.