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.

引用

页码：5983 / 5996

页数：13

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