植酸锌的制备及其对Q235钢腐蚀行为的影响

周兰欣, 张丽萍, 汤燕, 陈柯宇, 周剑军, 师超, 邵亚薇, 刘光明

Preparation of Zinc Phytate and Its Effect on Corrosion Behavior of Carbon Steel

ZHOU Lanxin, ZHANG Liping, TANG Yan, CHEN Keyu, ZHOU Jianjun, SHI Chao, SHAO Yawei, LIU Guangming

表3 磷酸锌和植酸锌不同浸出时间下Tafel拟合结果

Table 3 Fitting results of Tafel curves of Q235 steel in zinc phosphate and zinc phytate solutions extracted for different time

Extract Extracting time / h Ecorr / V Icorr / A·cm-2 η Zinc phosphate 0 -0.740 5.50 × 10-5 / 1 -0.440 3.84 × 10-5 30.18% 2 -0.495 3.64 × 10-5 33.82% 4 -0.503 3.43 × 10-5 37.63% 8 -0.504 2.55 × 10-5 53.63% Zinc phytate 0 -0.740 5.50 × 10-5 / 1 -0.562 3.35 × 10-6 93.91% 2 -0.582 2.49 × 10-6 95.47% 4 -0.539 2.55 × 10-6 95.36% 8 -0.543 2.50 × 10-6 95.45%