Abstract

The inhibition efficiency of Ethyl 1-(4-chlorophenyl)-5-methyl-1H-1,2,3-triazole-4-carboxylate (ETC) on AA6061 Aluminium (Al) alloy in 0.1M HCl solution was tested through weight loss, potentiodynamic polarisation and electrochemical impedance spectroscopy methods. The experimental results show that the inhibition efficiency of ETC increased with an increase in inhibitors concentration and temperature. Potentiodynamic polarisation indicated that the inhibitor is mixed type. From Langmuir isotherm, it was hypothesized the adsorption of inhibitors on AA6061 alloy surface might occur by physical and chemical interaction; however, the activation energy raised suggests a chemisorption process for the interaction of the inhibitor on AA6061 alloy surface. Scanning electron microscopy was used to characterise the surface morphology of the alloy in presence and in the absence of the inhibitor.

中文翻译：

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1-（4-氯苯基）-5-甲基-1 H -1,2,3-三唑-4-羧酸乙酯在盐酸中对铝合金的缓蚀作用

摘要

1-（4-氯苯基）-5-甲基-1 H乙基的抑制效率通过重量损失，电势极化和电化学阻抗谱法测试了AA6061铝（Al）合金在0.1M HCl溶液中的-1,2,3-三唑-4-羧酸盐（ETC）。实验结果表明，ETC的抑制效率随抑制剂浓度和温度的升高而增加。电位动力极化表明该抑制剂是混合型。从Langmuir等温线出发，假设抑制剂可能通过物理和化学相互作用在AA6061合金表面吸附。然而，提高的活化能表明了抑制剂在AA6061合金表面上相互作用的化学吸附过程。扫描电子显微镜用于表征在有或没有抑制剂的情况下合金的表面形态。