Characterization of initial atmospheric corrosion of conventional weathering steels and a mild steel in a tropical atmosphere

被引：1

作者：

Jaen, Juan A. ^{[1
]}

Munoz, Alcides ^{[2
]}

Justavino, Jaime ^{[3
]}

Hernandez, Cecilio ^{[3
]}

机构：

[1] Univ Panama, Dept Quim Fis, CITEN, Lab 105,Edificio Labs Cient VIP, Panama City, Panama

[2] Univ Panama, Dept Fis, Panama City, Panama

[3] Univ Tecnol Panama, Lab Quim & Fis Aplicada, Panama City, Panama

来源：

ISIAME 2008 | 2009年

关键词：

Atmospheric corrosion; Weathering steel; Carbon steel; Tropical atmosphere; Corrosion product; MOSSBAUER-SPECTROSCOPY; CARBON-STEELS; DIFFERENT ENVIRONMENTS; PRODUCTS; MARINE; PANAMA; LAYER;

D O I：

10.1007/978-3-642-01369-0_73

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The phases and compositions of the corrosion products of a mild steel (A-36) and two weathering steels (A-588 and COR 420) formed after 3 months exposure to the tropical marine atmosphere of Panama were examined using FTIR and Mossbauer spectroscopy. The results show that amorphous or crystallized iron oxyhydroxides goethite alpha-FeOOH and lepidocrocite gamma-FeOOH are early corrosion products. Maghemite gamma-Fe2O3 and magnetite Fe3O4 have also been identified and found to be prominent components for steels exposed to the most aggressive conditions. The formation of akaganeite beta-FeOOH was observed when chlorides were occluded within the rust. FTIR showed the presence of hematite alpha-Fe2O3 in one sample.

引用

页码：553 / +

页数：3

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