Influence of SiO, Substitution on Corrosion Behavior of Sol-gel TiO,Coating on Mild Steel
IR@NML: CSIR-National Metallurgical Laboratory, Jamshedpur
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| Title |
Influence of SiO, Substitution on Corrosion Behavior of Sol-gel TiO,Coating on Mild Steel
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| Creator |
Tiwari, S K
Tripathi, Manju Singh, Raghuvir |
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| Subject |
Materials Science
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| Description |
Titania with and without silica additions were deposited on mild steel (MS) by solgel method to enlir.-ince its corrosion resistance A conversion coating was applied on MS substrate prior to sot-gel coating to control the substrate's oxidation during heat treatment of the coating. The Ti0,-SiO2 coatings (SiO, = 0,10, 30 and 50 mor/o) were characterized by X-ray diffraction Corrosion and Surface Engineering Division„ FT-IR, SEM and contact angle measurement. The corrosion resistance of sot-gel coatings was evaluated in 3.5% NaCI solution by open-circuit potential (OCP), electrochemical impedance and
potentiodynamic polarization techniques. The so!-gel coatings exhibited a barrier type protection and reduced corrosion current density of the substrate by 4 orders of magnitude.Corrosion resistance of coating is reduced with increase in SiO, addition in Ti02 coating matrix.
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| Publisher |
IIM
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| Date |
2013-10
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://eprints.nmlindia.org/7081/1/SKTiwari-2013-IIM_News.PDF
Tiwari, S K and Tripathi, Manju and Singh, Raghuvir (2013) Influence of SiO, Substitution on Corrosion Behavior of Sol-gel TiO,Coating on Mild Steel. IIM Metal News, 16(5) . pp. 1-4. |
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| Relation |
http://eprints.nmlindia.org/7081
http://eprints.nmlindia.org/7081/ |
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