Corrosion resistance of sol-gel alumina coated Mg metal in 3.5 % NaCl solution

被引：16
|
作者：
Singh, I. B. [1 ]
Gupta, Prasant [1 ]
Maheshwari, Arpit [1 ]
Agrawal, Naveen [1 ]
机构：
[1] CSIR Adv Mat & Proc Res Inst, Mat Characterizat Grp, Bhopal 462064, MP, India
来源：
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 2015年 / 73卷 / 01期
关键词：
Mg metal; Alumina coating; EDX; FE-SEM; EIS; FTIR; MAGNESIUM ALLOY; STAINLESS-STEEL; COATINGS; BEHAVIOR; WEAR; PROTECTION; EVOLUTION;
D O I：
10.1007/s10971-014-3503-5
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This investigation describes the potential of sol-gel derived alumina coating on the corrosion resistance of magnesium metal in 3.5 % NaCl solution. Coating deposition was performed by dip coating technique using boehmite (AlOOH) sol followed by their sintering at 250 A degrees C. EDX and FTIR analysis confirmed that alumina is a main constituent of the coating. Microstructural examination of the coated surface demonstrated amorphous nature of coating of 2-3 A mu m in thickness. Potentiodynamic polarization and electrochemical impedance measurements indicated a considerable improvement in the corrosion resistance of the coated substrates.
引用
收藏
页码：127 / 132
页数：6
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