Influence of anions on the structure and morphology of steel rust particles prepared by aerial oxidation of acidic Fe(II) solutions

Advanced powder technology Volume 27 Issue 5 Page 2291-2297 published_at 2016-09
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Title
Influence of anions on the structure and morphology of steel rust particles prepared by aerial oxidation of acidic Fe(II) solutions
Creator
Hatanaka Nagisa
Muguruma Miya
Nishitani Ayaka
Ishikawa
Nakayama Takenori
Source Title
Advanced powder technology
Volume 27
Issue 5
Start Page 2291
End Page 2297
Journal Identifire
ISSN 09218831
Descriptions
In order to simulate the atmospheric corrosion of steel, artificial steel rust particles were synthesized by aerial oxidation of aqueous solutions containing FeCl_2, FeSO_4 and NaNO_3, and the structure and morphology of the obtained particles were characterized by XRD and TEM. Needle-like SO_4^<2-> containing Schwertmannite (Fe_8O_8(OH)_6(SO_4)) particles were mainly formed in FeCl_2-FeSO_4, FeSO_4-NaNO_3, FeCl_2-FeSO_4-NaNO_3 systems, and the crystallization and particle growth of this material were not influenced by added Cl^- and NO_3^-. The rod-shaped β-FeOOH particles were formed from in only FeCl_3-NaNO_3 system, though no marked change in crystallite and particle sizes of the β-FeOOH was recognized by adding NO_3^-. Accordingly, it can be suggested that the corrosive SO_X gas and air-borne chloride strongly affect the rust formation in atmospheric corrosion of the steels.
Subjects
Artificial steel rust ( Other)
Atmospheric corrosion ( Other)
Corrosive gas ( Other)
Anion ( Other)
Rust formation ( Other)
Language
eng
Resource Type journal article
Publisher
Society of Powder Technology, Japan
粉体工学会
Date of Issued 2016-09
Rights
©︎ 2016 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. This is an open access article under the CC BY-NC-ND license (http://creativecommons. org/licenses/by-nc-nd/4.0/).
Publish Type Accepted Manuscript
Access Rights open access
Relation
[DOI] 10.1016/j.apt.2016.09.004
[NCID] AA1074214X