Kinetics and structural studies of the atmospheric corrosion of carbon steels in Panama

被引：0
|
作者：
Juan A. Jaén
Mariela Sánchez de Villalaz
Lilibeth de Araque
Agnes de Bósquez
机构：
[1] Universidad de Panamá,Centro de Investigaciones con Técnicas Nucleares
[2] Universidad Tecnológica de Panamá,Laboratorio de Metalurgia
[3] Universidad de Panamá,Departamento de Química
来源：
Hyperfine Interactions | 1997年 / 110卷
关键词：
Corrosion Rate; Carbon Steel; Goethite; Maghemite; International Standard Organization;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The corrosion of a carbon steel was studied in different atmospheres at sites in the Republic of Panama. The weight loss (corrosion penetration) suffered by the carbon steel is related to time by a bilogarithmic law. Mössbauer spectroscopy indicated the rust was composed of non-stoichiometric magnetite (Fe3-xO4), maghemite (γ-Fe2O3), goethite (α-FeOOH) of intermediate particle size, lepidocrocite (γ-FeOOH) and superparamagnetic particles. Magnetite formation is related to the alternating dry--wet cycles. Goethite is related to corrosion penetration by a saturation type of behavior, following a Langmuir type of relationship. Goethite in rust protects steel against further atmospheric corrosion.
引用
收藏
页码：93 / 99
页数：6
相关论文
共 50 条
12345