Correlation Between the Pitting Potential Evolution and σ Phase Precipitation Kinetics in the 2205 Duplex Stainless Steel - Archive ouverte HAL Access content directly
Journal Articles Journal of Materials Engineering and Performance Year : 2018

Correlation Between the Pitting Potential Evolution and σ Phase Precipitation Kinetics in the 2205 Duplex Stainless Steel

Abstract

The aim of this work is to correlate the pitting potential ( E pit) evolution with the kinetics of σ phase precipitation in the 2205 duplex stainless steel aged at 850 °C after solution treatment at 1150 °C. The potentiodynamic polarization curves indicate a reduction of the pitting corrosion resistance with the aging time, which is revealed by a decrease in the E pit values from 0.65 to 0.40 VSCE. Thus, E pit values are used to determine the kinetics parameters of the σ phase precipitation. The experimental transformed fraction agrees well with the one calculated by using the modified Kolmogorov-Johnson-Mehl-Avrami equation with an impingement parameter c = 0.6.
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hal-04057829 , version 1 (04-04-2023)

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Mustapha Djama, Djaffar Saidi, Abdelaziz Kadri, Nabil Kherrouba, Brahim Mehdi, et al.. Correlation Between the Pitting Potential Evolution and σ Phase Precipitation Kinetics in the 2205 Duplex Stainless Steel. Journal of Materials Engineering and Performance, 2018, 27 (8), pp.3911-3919. ⟨10.1007/s11665-018-3482-8⟩. ⟨hal-04057829⟩
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