Influence of alloying elements on the corrosion resistance of rolled zinc sheet

Bos, C. van den; Schnitger, H.C.; Zhang, X.; Hovestad, A.; Terryn, Herman; Wit, J.H.W. de

doi:10.1016/j.corsci.2005.05.028

Cited by 27 publications

(11 citation statements)

References 13 publications

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“…Therefore, with the increase of scan rate, the distance between anodic and cathodic peaks increases. This increase is related to the loss of ohmic drop [34]. Figure 3 also indicates that the reactions of reduction-oxidation (redox) in Zn-Co alloy are quasi-reversible, because the ratio of cathodic to anodic peak current is almost close to one [35].…”

Section: Resultsmentioning

confidence: 85%

Electrochemical studies of zinc–cobalt alloy coatings deposited from alkaline baths containing glycine as complexing agent

Gharahcheshmeh

Sohi

2010

J Appl Electrochem

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Co-deposition of Zn-Co alloy coatings that were electrodeposited from weakly alkaline glycine solutions has been studied by cyclic voltammetry. Scanning electron microscopy (SEM), energy depressive spectroscopy (EDS), and X-ray diffraction (XRD) analyses were used to study surface morphology, chemical composition, and phase structure of the coatings. Corrosion behavior of the coatings was also studied using potentiodynamic polarization tests in 3.5 wt% NaCl solution. Cyclic voltammetry results showed that in Zn-Co deposition from an alkaline bath in the presence of glycine, cobalt deposited at a potential near to that of zinc together with successful co-deposition of Co and Zn. It was also shown that reduction-oxidation (redox) reactions of Zn-Co alloy deposits were quasi-reversible and resulted in deviation of electrodeposited alloys from the equilibrium phase diagrams. The corrosion resistance of the deposits was also highly influenced by the composition and morphology of the coatings. Overall, Zn-Co deposit containing 0.89 wt% Co showed that the highest corrosion resistance among the coatings that was due to its single phase structure and fine morphology.

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Section: Resultsmentioning

confidence: 85%

Electrochemical studies of zinc–cobalt alloy coatings deposited from alkaline baths containing glycine as complexing agent

Gharahcheshmeh

Sohi

2010

J Appl Electrochem

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“…Many proprietary combinations of the additives have been developed for zinc plating in chloride solution and sodium benzoate is one of the necessary components among these combinations [3,[14][15][16]. However, the effect of sodium benzoate on the zinc electrodeposition is less understood.…”

Section: Introductionmentioning

confidence: 99%

Effect of sodium benzoate on zinc electrodeposition in chloride solution

Huang

et al. 2011

J Appl Electrochem

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The effect of sodium benzoate on the electrodeposition of zinc on carbon steel electrode from acidic chloride solution was studied by cyclic voltammetry (CV), differential capacitance (DC), chronoamperometry (CA), scanning electron microscopy (SEM), and X-ray diffraction (XRD). A dimensionless graph model was used to analyze the nucleation process of zinc. It is found that the sodium benzoate has a blocking effect on the zinc electrodeposition when its concentration is higher than 0.03 M but will accelerate the formation rate of zinc nuclei when its concentration is lower than 0.03 M. Benzoate can be adsorbed on the surface of the electrode, which reduces the interface tension of electrode/solution and favors the formation and growth of zinc nuclei when its concentration is lower than 0.03 M, but forms a separated layer and retards the formation and growth of zinc nuclei when its concentration is higher than 0.03 M.

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“…Till now corrosion was often consider as a purely chemical interaction with an exclusive dependence on compositional effects, while ignoring microstructural and crystallographic properties of the metal surface [4][5][6][7][8][9][10][11]. Some recent literature data, however, suggest an important effect of microstructural elements such as grain size, crystallographic orientation and grain boundary characteristics features on the electrochemical behavior [12][13][14][15][16][17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Use of Local Electrochemical Methods (SECM, EC-STM) and AFM to Differentiate Microstructural Effects (EBSD) on Very Pure Copper

Martinez-Lombardia¹,

Lapeire²,

Maurice³

et al. 2017

Corrosion Science and Technology

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When aiming for an increased and more sustainable use of metals a thorough knowledge of the corrosion phenomenon as function of the local metal microstructure is of crucial importance. In this work, we summarize the information presented in our previous publications [1][2][3] and present an overview of the different local (electrochemical) techniques that have been proven to be effective in studying the relation between different microstructural variables and their different electrochemical behavior. Atomic force microscopy (AFM)[1], scanning electrochemical microscopy (SECM) [2], and electrochemical scanning tunneling microscopy (EC-STM) [3] were used in combination with electron backscatter diffraction (EBSD). Consequently, correlations could be identified between the grain orientation and grain boundary characteristics, on the one hand, and the electrochemical behavior on the other hand. The grain orientation itself has an influence on the corrosion, and the orientation of the neighboring grains also seems to play a decisive role in the dissolution rate. With respect to intergranular corrosion, only coherent twin boundaries seem to be resistant.

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Influence of alloying elements on the corrosion resistance of rolled zinc sheet

Cited by 27 publications

References 13 publications

Electrochemical studies of zinc–cobalt alloy coatings deposited from alkaline baths containing glycine as complexing agent

Electrochemical studies of zinc–cobalt alloy coatings deposited from alkaline baths containing glycine as complexing agent

Effect of sodium benzoate on zinc electrodeposition in chloride solution

Use of Local Electrochemical Methods (SECM, EC-STM) and AFM to Differentiate Microstructural Effects (EBSD) on Very Pure Copper

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