Journal of Alloys and Compounds ( IF 5.8 ) Pub Date : 2018-04-09 Mojtaba Bagherzadeh, Fatemeh Jaberinia
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 (Jcorr) decreased in 5 orders, the slope of Tafel plots increased, the corrosion potential (Ecorr) 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.
中文翻译:
盐酸溶液中Monel合金腐蚀的电化学研究和吡咯烷二硫代羧酸盐自组装单分子膜作为腐蚀防护剂
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%。