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Corrosion Products and Formation Mechanism During Initial Stage of Atmospheric Corrosion of Carbon Steel

  • Kui XIAO*
  • , Chao fang DONG
  • , Xiao gang LI
  • , Fu ming WANG
  • *此作品的通讯作者
  • University of Science and Technology Beijing

科研成果: 期刊稿件文章同行评审

摘要

The formation and development of corrosion products on carbon steel surface during the initial stage of atmospheric corrosion in a laboratory simulated environment have been studied by scanning electron microscopy (SEM) and Raman spectroscopy. The results showed that two different shapes of corrosion products, that is, ring and chain, were formed in the initial stage of corrosion. MnS clusters were found in the nuclei of corrosion products at the active local corrosion sites. The ring-shaped products were composed of lepidocrocite (γ-FeOOH) and maghemite (γ-Fe2 O3) transformed from lepidocrocite. The chain-type products were goethite (α-FeOOH). A formation mechanism of the corrosion products is proposed.

源语言英语
页(从-至)42-48
页数7
期刊Journal of Iron and Steel Research International
15
5
DOI
出版状态已出版 - 9月 2008
已对外发布

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