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环氧有机涂层对锌铁合金镀层耐蚀性的影响

Effect of epoxy organic coating on corrosion resistance of zinc–iron alloy deposit
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摘要 利用腐蚀浸泡实验、失重法和交流阻抗谱分析等方法研究了环氧有机涂层对Q235钢电镀锌铁合金镀层耐蚀性的影响。结果表明,Q235钢基体、Q235+Zn–Fe合金镀层试样和Q235+Zn–Fe合金镀层+环氧有机涂层试样在5%NaCl溶液中浸泡504 h后,腐蚀速率分别为0.068 0、0.040 0和0.018 0 mm/a。涂覆环氧有机涂层至少能使锌铁合金镀层的防腐性能提高2倍,从而延长基体材料的使用寿命。 The effect of the epoxy organic coating on corrosion resistance of Zn-Fe alloy deposit on Q235 steel was studied by dipping corrosion method, weight loss experiment, and alternating current impedance spectroscopy. It was found that the corrosion rate of Q235 steel substrate, Q235 + Zn-Fe alloy deposit test sample, and Q235 + Zn-Fe alloy deposit + epoxy organic coating test coupon after immersion in 5 wt% NaCl solution for 504 h is 0.068 0, 0.040 0, and 0.018 0 mm/a, respectively. The corrosion protection performance of Zn-Fe alloy deposit can be improved by 2 times after coating with epoxy organic coating, leading to a prolonged service life of the substrate material.
出处 《电镀与涂饰》 CAS CSCD 北大核心 2014年第18期809-812,共4页 Electroplating & Finishing
关键词 锌–铁合金镀层 环氧涂层 耐蚀性 steel zinc-iron alloy deposit epoxy coating corrosion resistance
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