Journal
CORROSION SCIENCE
Volume 82, Issue -, Pages 347-355Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2014.01.039
Keywords
Concrete; Stainless steel; Polarization; XPS; Passive films; Interfaces
Funding
- National Natural Science Foundation of China [51301060, 51210001]
- Fundamental Research Funds for the Central Universities [2013B03514]
- 111 Project [B12032]
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The passive behaviour of deformed 304 stainless steel samples in saturated calcium hydroxide solution has been studied by electrochemical technologies and X-ray photoelectron spectroscopy (XPS). The passive films on seriously deformed stainless steel become heavily doped. The donor and acceptor densities increase with increasing degree of deformation. The space-charge layer is thinned as the substrate is progressively deformed. The degree of deformation has an obvious influence on the composition of Fe-II/Fe-III cations, but do not have a significant influence on the content of Cr cations. Compared with an elastically deformed sample, the passivity of a plastically deformed stainless steel is more significantly affected. (C) 2014 Elsevier Ltd. All rights reserved.
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