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      Preparation and Anti-Corrosive Properties of Cerium Oxide Conversion Coatings on Steel X52

      research-article
      , ,
      Materials Research
      ABM, ABC, ABPol
      Steel X52, Cerium oxide coatings, Impedance, SEM

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          Abstract

          In this study, cerium-based conversion coating was deposited on steel X52 by dip immersion method. Cerium oxide/hydroxide is an environmentally friendly conversion coating. The effects of immersion times and immersion temperatures on corrosion properties of cerium conversion coating on steel X52 were studied. Its corrosion resistance in 3.5 wt.% NaCl solution was investigated by means of electrochemical impedance spectroscopy, potentiodynamic polarization, and surface techniques. The coated samples showed a significant decrease in corrosion rate and corrosion current decreased with increasing immersion time up to 60 s. In addition, electrochemical impedance data showed that in the presence of cerium oxide conversion coatings, the charge transfer resistance of aluminum increased. The experimental results indicated that the corrosion resistance decreased with increasing the operating temperature. Surface morphology and its chemical composition were analyzed by means of scanning electron microscopy and energy dispersive spectroscopy.

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          Most cited references45

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          Formation of a cerium-based conversion coating on AA2024: relationship with the microstructure

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            Quantum chemical and experimental investigations on equipotent effects of (+)R and (−)S enantiomers of racemic amisulpride as eco-friendly corrosion inhibitors for mild steel in acidic solution

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              Effect of HCl pre-treatment on corrosion resistance of cerium-based conversion coatings on magnesium and magnesium alloys

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                mr
                Materials Research
                Mat. Res.
                ABM, ABC, ABPol (São Carlos, SP, Brazil )
                1516-1439
                1980-5373
                April 2017
                : 20
                : 2
                : 445-451
                Affiliations
                [2] Tehran Tehran orgnameImam Hossein University orgdiv1Department of Materials Science and Engineering Iran
                [1] Abadan Khuzestan orgnamePetroleum University of Technology orgdiv1Abadan Faculty of Petroleum Engineering Iran
                Article
                S1516-14392017000200445
                10.1590/1980-5373-mr-2016-0661
                b2ec8410-99d1-4bfd-b973-411ecf85bb2f

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 12 September 2016
                : 15 January 2017
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 45, Pages: 7
                Product

                SciELO Brazil


                Steel X52,Cerium oxide coatings,Impedance,SEM
                Steel X52, Cerium oxide coatings, Impedance, SEM

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