Experimental Investigation of Inhibition Efficiency of Crocin for Chloride-Induced Corrosion of Aluminum Alloys  

作　　者：Paraskevi Pantazopoulou Stamatina Theohari Sofia Kalogeropoulou Paraskevi Pantazopoulou;Stamatina Theohari;Sofia Kalogeropoulou(Department of Electrical and Electronic Engineering, University of West Attica, Athens, Greece;Graphic Design and Visual Communication Department, University of West Attica, Athens, Greece)

机构地区：[1]Department of Electrical and Electronic Engineering, University of West Attica, Athens, Greece [2]Graphic Design and Visual Communication Department, University of West Attica, Athens, Greece

出　　处：《Open Journal of Applied Sciences》2022年第11期1931-1943,共13页应用科学（英文）

摘　　要：The use of Crocin, derived from the flowers of Crocus sativus, is investigated as corrosion inhibitor for the AA1050, AA5083, AA5754 and AA6082 aluminum alloys in chloride ions environment. Aluminum and aluminum alloys are subjected to corrosion in the aggressive environment of chlorides, so several green corrosion inhibitors, mostly of plant origin, with minimum impact on health and the environment have been examined. In this study, the inhibition efficiency of 1.25 mM Crocin in a 0.01 M NaCl corrosive solution was assessed via electrochemical corrosion techniques and gravimetric mass loss measurements of the aluminum alloys. The surface of the specimens was examined using Scanning Electron Microscopy, Energy Dispersive Spectroscopy, Stereomicroscopy and Glossiness measurements. Experimental results reveal the protective anticorrosive action of Crocin for all aluminum alloys in the sodium chloride medium.The use of Crocin, derived from the flowers of Crocus sativus, is investigated as corrosion inhibitor for the AA1050, AA5083, AA5754 and AA6082 aluminum alloys in chloride ions environment. Aluminum and aluminum alloys are subjected to corrosion in the aggressive environment of chlorides, so several green corrosion inhibitors, mostly of plant origin, with minimum impact on health and the environment have been examined. In this study, the inhibition efficiency of 1.25 mM Crocin in a 0.01 M NaCl corrosive solution was assessed via electrochemical corrosion techniques and gravimetric mass loss measurements of the aluminum alloys. The surface of the specimens was examined using Scanning Electron Microscopy, Energy Dispersive Spectroscopy, Stereomicroscopy and Glossiness measurements. Experimental results reveal the protective anticorrosive action of Crocin for all aluminum alloys in the sodium chloride medium.

关 键 词：CROCIN Aluminum Corrosion Eco-Friendly Inhibitors Sodium Chloride Environment Electrochemical and Gravimetric Methods 

分 类 号：TG1[金属学及工艺—金属学]