A New Method for Describing the Atomic-scale Structure of Rusts Formed on the Iron Based Alloy Surlaces.
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- Suzuki Shigeru
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
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- Saito Masatoshi
- School of Health Sciences, Faculty of Medicine, Niigata University
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- Kimura Masao
- Technical Development Bureau, Nippon Steel Corporation
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- Suzuki Tamaki
- Technical Development Bureau, Nippon Steel Corporation
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- Kihira Hiroshi
- Technical Development Bureau, Nippon Steel Corporation
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- Waseda Yoshio
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
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説明
Quantitative structural analysis by conventional X-ray diffraction and anomalous X-ray scattering coupled with the reverse Monte-Carlo simulation technique has been carried out, in order to characterize the atomicscale structure of rust formed on the surface of Fe, Fe-2 %Cr, Fe-3 %Ni and Fe-1.6 %Cu alloys and a weathering steel. Rust samples were prepared by filtering corrosion products formed on the surface of these alloys in salt water. X-ray diffraction patterns showed that main components of the rust consist of ferric oxyhydroxides such as γ-FeOOH. Radial distribution functions obtained from both conventional X-ray diffraction and anomalous X-ray scattering clearly indicated that the fundamental local unit structure in the rust is the octahedral FeO6, although it is likely to be distorted. Realistic atomic arrangements in the rust were estimated by fitting of the ordinary and environmental interference functions calculated using the reverse Monte-Carlo simulation technique. These results provided that the network structure consists of the FeO6 octahedral units and its distortion depend upon the composition of samples. These facts suggest that alloying elements in the rust, which themselves are corroded, play an important role in forming the atomic-scale structure of the rust.
収録刊行物
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- ＩＳＩＪ Ｉｎｔｅｒｎａｔｉｏｎａｌ
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ＩＳＩＪ Ｉｎｔｅｒｎａｔｉｏｎａｌ 43 (3), 366-372, 2003
一般社団法人 日本鉄鋼協会
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詳細情報 詳細情報について
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- CRID
- 1390282681428071168
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- NII論文ID
- 10014446752
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- NII書誌ID
- AA10680712
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- COI
- 1:CAS:528:DC%2BD3sXitlKrtLk%3D
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- ISSN
- 13475460
- 09151559
- http://id.crossref.org/issn/00211583
- http://id.crossref.org/issn/09151559
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可
