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论文类型：期刊论文

发表时间：2019-11-01

发表刊物：MATERIALS CHEMISTRY AND PHYSICS

收录刊物：EI、SCIE

卷号：237

ISSN号：0254-0584

关键字：Corrosion inhibitor; ECN; Localized corrosion; KPFM; EIS

摘要：A novel and efficient acid pickling inhibitor containing triazine and methionine groups against corrosion in 1 M HCl for 2024-T3 aluminium alloy was prepared. The novel inhibitor drove the inhibition efficiency to nearly 99% in 1 M HCl due to the formation of a compacted adsorption film. Especially, localized inhibition behaviour in the presence of the synthesized inhibitor was deeply studied mainly with electrochemical noise method (ECN), SEM, and Kelvin Probe Force Microscopy (KPFM). EDP and SDPS plots depicted the localized corrosion in 1 M HCl varying from low concentration to high concentration and XPS reveals that different localized corrosion behaviour is due to the different adsorption forms on the surface along with varied concentrations.