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Electrochemical pro...
Electrochemical properties of oxide scale on steel exposed in saturated calcium hydroxide solutions with or without chlorides
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- Ahlström, Johan (författare)
- RISE,KIMAB,Chalmers University of Technology, Sweden
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- Tidblad, Johan (författare)
- RISE,KIMAB
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- Tang, Luping, 1956 (författare)
- Chalmers University of Technology, Sweden,Chalmers tekniska högskola
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- Sederholm, Bror (författare)
- RISE,KIMAB
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- Leijonmarck, Simon (författare)
- RISE,KIMAB
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(creator_code:org_t)
- Hindawi Limited, 2018
- 2018
- Engelska.
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Ingår i: International Journal of Corrosion. - : Hindawi Limited. - 1687-9325 .- 1687-9333. ; 2018
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Abstract
Ämnesord
Stäng
- The electrochemical properties of various iron oxide scales on steel exposed in saturated calcium hydroxide solutions were investigated. The iron oxide scales were manufactured by different heat treatments and grinding processes and characterized using X-ray diffraction and scanning electron microscope. The electrochemical properties of the scales were assessed by measuring the corrosion potential and using electrochemical impedance spectroscopy and potentiodynamic polarization curves. It was found that wustite and magnetite are less noble compared to hematite but are more effective as cathodic surfaces. The results show that the electrochemical properties of the mill scale can be an important contributing factor in the corrosion of steel in concrete.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Korrosionsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Corrosion Engineering (hsv//eng)
Nyckelord
- Chlorine compounds
- Electrochemical corrosion
- Electrochemical impedance spectroscopy
- Electrochemical properties
- Hematite
- Hydrated lime
- Lime
- Magnetite
- Scale (deposits)
- Scanning electron microscopy
- Calcium hydroxide solution
- Cathodic surfaces
- Contributing factor
- Corrosion of steel in concretes
- Corrosion potentials
- Grinding process
- Iron oxide scale
- Potentiodynamic polarization curves
- Steel corrosion
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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