Herein, the corrosion behavior of Monel alloy was comprehensively studied in 5% HCl solution. Then self-adsorption of pyrrolidine dithiocarboxylate (PDTC), as a corrosion protector, on Monel surface was investigated. Electrochemical methods, such as CV, LSV and EIS, and surface techniques such as SEM and EDX were used for evaluation of PDTC-SAM on Monel. Obtained results showed the corrosion current density (J_corr) decreased in 5 orders, the slope of Tafel plots increased, the corrosion potential (E_corr) shifted to positive values, the corrosion rate (CR) decreased from 2.11 to 0.172 mm/yr, and the PE% as 91.9% was observed after 4 h self-assembling time.

在此，对Monel合金在5％HCl溶液中的腐蚀行为进行了全面研究。然后研究了吡咯烷二硫代羧酸盐（PDTC）作为腐蚀防护剂在Monel表面上的自吸附。电化学方法（例如CV，LSV和EIS）以及表面技术（例如SEM和EDX）用于评估Monel上的PDTC-SAM。所得结果表明腐蚀电流密度（J _corr）降低了5个等级，Tafel曲线的斜率增加，腐蚀电位（E _corr）变为正值，腐蚀速率（CR）从2.11降至0.172 mm / yr，自组装4 h后的PE％为91.9％。