Characterization of corrosion resistance of electrodeposited Zn–Ni Zn and Cd coatings

Sriraman, K. R.; Brahimi, S.; Szpunar, Jerzy A.; Osborne, Jason W.; Yue, Stephen

doi:10.1016/j.electacta.2013.05.010

Cited by 97 publications

(69 citation statements)

References 26 publications

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“…This is obtained by alloying zinc with Fe group metals such as Fe, Co and Ni. In recent years, the interest in Zn-Ni alloys has been increasing as a substitute for cadmium coatings [3,4] due to its eco-friendly properties [5,6]. In addition, Zn-Ni alloy coatings have attracted considerable attention in the aerospace and energy generation owing to its excellent corrosion resistance at high temperature and severe oxidizing conditions [7].…”

Section: Introductionmentioning

confidence: 99%

Electrodeposition of nanocrystalline Zn–Ni coatings with single gamma phase from an alkaline bath

Feng

Zhang

et al. 2015

Surface and Coatings Technology

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Section: Introductionmentioning

confidence: 99%

Electrodeposition of nanocrystalline Zn–Ni coatings with single gamma phase from an alkaline bath

Feng

Zhang

et al. 2015

Surface and Coatings Technology

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“…The results show that the three coatings exhibit residual tensile stresses in the range 2.2-7.7 GPa, which decrease with increasing Nb content. It is worth noting that the internal stress state within a coating plays an important role in governing the corrosion resistance of the coating [30], and an adverse tensile stress state could lead to inferior resistance to corrosion attack in a manner analogous to stress corrosion cracking in metals [31,32]. Owing to its hexagonal crystal structure, Ti 5 Si 3 exhibits a large thermal expansion anisotropy that could result in high residual stresses in the resultant coating following high-temperature synthesis.…”

Section: Phase Composition and Residual Stress Analysismentioning

confidence: 99%

Niobium addition enhancing the corrosion resistance of nanocrystalline Ti5Si3 coating in H2SO4 solution

Liu

et al. 2014

Acta Materialia

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nanocrystalline coatings were deposited onto Ti-6Al-4V substrates by a double glow discharge plasma technique. The effects of Nb alloying on the electrochemical behavior of the Ti 5 Si 3 nanocrystalline coatings were systematically investigated in a naturally aerated 5 wt.% H 2 SO 4 solution, for which various electrochemical techniques, including potentiodynamic polarization, electrochemical impedance spectroscopy (EIS), potentiostatic polarization and Mott-Schottky analysis, were employed. Moreover, to evaluate the corrosion performance of the as-deposited coatings over an extended period, their corrosion resistance was analyzed after 7 days' immersion in a 5 wt.% H 2 SO 4 solution by EIS measurements and observations of corroded surface morphologies. The results showed that the Ti 62.5Àx Nb x Si 37.5 (x = 0, 6.3, 12.5) nanocrystalline coatings exhibit superior corrosion resistance compared with Ti-6Al-4V, and their corrosion resistance is enhanced with increasing Nb content, suggesting that Nb alloying is an effective strategy for improving the corrosion protection ability of the Ti 5 Si 3 nanocrystalline coating. The roles of Nb additions in enhancing the corrosion resistance of the Ti 5 Si 3 nanocrystalline coatings can be summarized as: (a) reducing the residual tensile stresses of the as-deposited coatings and (b) tailoring the composition, compactness and electronic structure of the passive films formed. These findings are expected to broaden the application of Ti 5 Si 3 as a highly corrosion-resistant coating for engineering components operating under aggressive conditions.

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“…The results of electrochemical impedance spectroscopy, a technique commonly used in corrosion testing of Zn alloy coatings, 1,10,18,19 are shown in Fig. The results of electrochemical impedance spectroscopy, a technique commonly used in corrosion testing of Zn alloy coatings, 1,10,18,19 are shown in Fig.…”

Section: Corrosion Protectionmentioning

confidence: 99%

Ternary Zn-Ni-Co alloy: Anomalous codeposition and corrosion stability

Tomić

Petrović

Stanković³

et al. 2015

JSCS

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Electrochemically deposited Zn-Ni-Co alloys under various deposition conditions were investigated using atomic absorption spectroscopy for the determination of the chemical composition, atomic force microscopy for surface morphology analysis, and electrochemical impedance spectroscopy for determination of corrosion properties. The influence of the ratio of the alloying elements, [Co 2+ ]/[Ni 2+ ], in a chloride deposition solution, as well as the deposition current density, on the chemical content, morphology and corrosion properties of the ternary alloys was studied. The plating solutions used were with the same overall metal concentration, free of additives and the deposition was realized at room temperature. It was shown that the deposition of the ternary alloy coatings was of anomalous type and that the ratio of nickel to cobalt ions in the plating solution, as well as the deposition current density, had a significant influence on the chemical composition and corrosion stability of these coatings. The presence of both Ni and Co was beneficial for their corrosion stability. It was shown that morphology and porosity were important factors in the corrosion stability of these coatings. The coating deposited from the solution with higher [Co 2+ ]/[Ni 2+ ] ratio at 8 A dm -2 was made up of the smallest crystalline aggregates, had a small surface roughness and porosity, and was with quite uniform distribution of agglomerates and it exhibited the best corrosion stability.

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Characterization of corrosion resistance of electrodeposited Zn–Ni Zn and Cd coatings

Cited by 97 publications

References 26 publications

Electrodeposition of nanocrystalline Zn–Ni coatings with single gamma phase from an alkaline bath

Electrodeposition of nanocrystalline Zn–Ni coatings with single gamma phase from an alkaline bath

Niobium addition enhancing the corrosion resistance of nanocrystalline Ti5Si3 coating in H2SO4 solution

Ternary Zn-Ni-Co alloy: Anomalous codeposition and corrosion stability

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