Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
In-situ X-ray Diffraction of Corrosion Products Formed on Iron Surfaces
Yohei TakahashiEiichiro MatsubaraShigeru SuzukiYoshinori OkamotoTakuya KomatsuHiroyuki KonishiJunichiro MizukiYoshio Waseda
Author information

2005 Volume 46 Issue 3 Pages 637-642


In-situ X-ray diffraction measurements by synchrotron radiation and conventional X-ray source have been carried out for identifying constituent species of corrosion products, which were formed on the surface of a pure iron and an iron-5 mass% nickel alloy by reaction with aqueous solutions containing sodium chloride or sodium sulfate. A cell has been prepared for in-situ diffraction measurements of the corrosion products. Diffraction patterns from the corrosion products showed that major constituent species of the corrosion products was γ-FeOOH, and the fraction of minor species of α-FeOOH and Fe3O4 in the corrosion products depended on corrosion conditions, such as wetting and drying processes, anion species in aqueous solutions and nickel in the sample. An oxide scale thermally formed on the iron surface was also found to affect the formation of corrosion products.

Content from these authors
© 2005 The Mining and Materials Processing Institute of Japan
Previous article Next article