Corrosion inhibition of Schiff bases for Mg-Zn-Y-Nd alloy in normal saline: Experimental and theoretical investigations

被引：58

作者：

Ma, Liang ^{[1
]}

Li, Weijie ^{[1
]}

Zhu, Shijie ^{[1
]}

Wang, Liguo ^{[1
]}

Guan, Shaokang ^{[1
,2
,3
]}

机构：

[1] Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China

[2] Henan Key Lab Adv Magnesium Alloys, Zhengzhou 450002, Peoples R China

[3] Minist Educ, Key Lab Adv Mat Proc & Mold, Zhengzhou 450002, Peoples R China

来源：

CORROSION SCIENCE | 2021年 / 184卷

基金：

中国国家自然科学基金;

关键词：

Mg-Zn-Y-Nd alloy; Schiff bases; Corrosion inhibition; Inhibition mechanism; MAGNESIUM ALLOY; MILD-STEEL; SODIUM-FLUORIDE; NACL SOLUTION; LEAF EXTRACT; AZ91D; PERFORMANCE; MECHANISM; BEHAVIOR; PAEONOL;

D O I：

10.1016/j.corsci.2021.109268

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this research, three new Schiff bases were synthesized by paeonol and amino acids and tested as corrosion inhibitors for Mg-Zn-Y-Nd alloy. Weight loss measurements and electrochemical measurements demonstrated that three Schiff bases showed high inhibition efficiency on Mg corrosion. The corrosion products on Mg surface were analyzed by scanning electron microscopy (SEM), Fourier transform infrared spectrum (FTIR) and X-ray photoelectron spectroscopy (XPS). The possible inhibition mechanism was proposed, in which the Schiff bases react with Mg2+ ions to form complexes on Mg surface in inhibitors-containing electrolytes. The theoretical calculation of quantum chemical demonstrated the experimental findings.

引用

页数：19

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