Corrosion inhibition using 2-mercaptobenzimidazole on T6 treated 6061 Al-SiCp composite in acetic acid

被引:5
|
作者
Chacko, Melby [1 ]
Nayak, Jagannath [1 ]
机构
[1] NITK, Dept Met & Mat Engn, Mangaluru 575025, India
关键词
Al-SiCp composite; T6; treatment; corrosion; inhibition; chemisorption; MILD-STEEL; ALLOY; BEHAVIOR; DERIVATIVES; ADSORPTION; COPPER;
D O I
10.1016/j.matpr.2015.07.257
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
6061 Al-SiCp composite was T6 treated by solutionizing the sample at 350 degrees C and water quenching. It was then underaged at 140 degrees C and aging profile was obtained using Rockwell B hardness. Corrosion characteristics of the underaged composite was studied at varying temperatures. Acetic acid in altered concentrations was used as medium for corrosion studies. 2-mercaptobenzimidazole was added in different concentrations for inhibiting the corrosion reaction. Inhibition efficiency and thermodynamic parameters supported that 2-mercaptobenzimidazole is an effective inhibitor which adsorbed on to the surface by mixed adsorption where chemisorption was predominant. (C) 2015 Elsevier Ltd. All rights reserved.
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页码:2728 / 2736
页数:9
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