Corrosion Behavior of Fe-40at.%Al-Based Intermetallic in 0.25 M H2SO4 Solution

被引：0
作者：
M. Hernández-Hernández
H. B. Liu
J. Alvarez-Ramirez
M. A. Espinosa-Medina
E. Sosa
机构：
[1] UNAM,Facultad de Química
[2] Universidad Michoacana de San Nicolás de Hidalgo,Facultad de Ingeniería Mecánica
[3] Universidad Autónoma Metropolitana-Iztapalapa,undefined
[4] Instituto Mexicano del Petróleo,undefined
来源：
Journal of Materials Engineering and Performance | 2017年 / 26卷
关键词：
acid corrosion; EIS; Fe-Al intermetallic;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The electrochemical behavior of Fe-40at.%Al-based intermetallic microalloyed with 3 and 5 at.% Cu additions in 0.25 M H2SO4 solution over time was studied. A complementary study to characterize the surface morphology and semiquantitative chemical analysis of the corrosion products after 24 h of immersion was performed using scanning electron microscopy and x-ray energy dispersion spectrum. By means of electrochemical techniques, it was shown that Cu addition has a positive effect on corrosion resistance of Fe-40at.%Al-based intermetallic alloy. Additionally, the relatively high concentration of Cu consolidated the passive film of corrosion products and its stability.
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页码：5983 / 5996
页数：13
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