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本文将旋转环一盘电极应用于腐蚀研究,考查了K_2CrO_4和Na_2S对A_3钢在浓碱溶液中电化学腐蚀的影响。采用银环-A_3钢盘电极(r_1=2.23mm,r_2=2.49mm,r_3=2.98mm,理论收集系数N=0.32),检测了当盘电极进行动电位扫描过程中所形成的液相产物。一台恒电位仪控制盘电位线性上升或下降,另一台恒电位仪控制环电位维持着某一恒定值。这样,环电极可以在某一特征电位下对可溶性Fe(Ⅱ)
In this paper, an electrode of a rotating ring was applied to the corrosion study. The effects of K 2 CrO 4 and Na 2 S on electrochemical corrosion of A 3 steel in concentrated alkali solution were investigated. The liquid phase products formed during the potentiodynamic scanning of the disk electrode were measured using a silver ring-A 3 steel electrode (r_1 = 2.23mm, r_2 = 2.49mm, r_3 = 2.98mm, theoretical collection coefficient N = 0.32) A potentiostat control panel potentiometer linear rise or fall, the other potentiostat control loop potential to maintain a constant value. Thus, the ring electrode can be a characteristic potential of soluble Fe (Ⅱ)