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This study investigates the effect of corrosion temperature on the corrosion of Q235 steel and 16Mn steel in the sodium aluminate solution using the weight loss method and electrochemical method. The results indicate that the corrosion rates of two steels show an increasing trend with the temperature and that of Q235 steel increases more than that of 16Mn steel at higher temperatures. The corrosion products have changed from four forms at 25 °C to two forms at 65 and 110 °C, namely, the octahedral particles and the bulk particles formed by the flocculent aggregation. The corrosion products are composed of FeS, FeS 2 , Fe 2 O 3 , Fe 3 O 4 , NaFeO 2 , and Al 2 O 3 . The I  corr of the two steels increases with temperature, while R  p gradually decreases. The two steels are controlled by the charge transfer at 25 and 65 °C and the charge transfer and the ion diffusion at 95 °C, indicating that the temperature changes the kinetics of the corrosion process.

Effect of Corrosion Temperature on the Corrosion of Q235 Steel and 16Mn Steel in Sodium Aluminate Solutions