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几种缓蚀剂在3.5%NaCl溶液中对A3钢的缓蚀性能 被引量:5

Effects of Different Inhibitors on Corrosion of Mild Steel in 3.5%NaCl Solution
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摘要 采用动电位极化曲线、交流阻抗和扫描电镜法研究了乙二胺四乙酸二钠、二乙胺基乙醇、葡萄糖酸钙、磷酸氢二钠在3.5%NaCl溶液中对A3碳钢的缓蚀作用。研究结果表明,四种缓蚀剂均为阳极型缓蚀剂,缓蚀效果为:磷酸氢二钠>乙二胺四乙酸二钠>葡萄糖酸钙>二乙胺基乙醇。 The corrosion inhibition effects of EDTA-2Na (C10H14 N2O8Na2 ), diethylamino ethanol ( (C2H5 )2 NCH2 CH2 OH), calcium gluconate( (C2 H5 )2 NCH2 CH2 OH) and disodium hydrogen phosphate(Na2 HPO4 ) on mild steel were investigated in 3.5% NaCl solution at 298K by using potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) and SEM methods. The results showed that all the inhibitors are anodic type inhibitors, the inhibitive efficiency followed the order: Na2HPO4 〉Ca (C6H11O7 )2〉 C20 H14 N2O8Na2 〉(C2 H5 )2 NCH2 CH2 OH. The inhibitors could be adsorbed on mild steel to inhibit corrosion effectively.
出处 《腐蚀与防护》 CAS 北大核心 2010年第1期34-36,46,共4页 Corrosion & Protection
基金 中国科学院知识创新工程项目(KZCXZ-YW-210) 国家高技术研究发展计划(863计划)(2008AA09Z317) 山东省科技发展计划项目(2008GG10005016)
关键词 动电位极化 交流阻抗谱 缓蚀剂 海水 potentiodynamic polarlzation electrochemical impendence spectroscopy corrosion inhibitor seawater
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