Electrodeposition of zinc on AZ91D magnesium alloy pre‐treated by stannate conversion coatings

Zhang, S. Y.; Li, Q.; Chen, B.; Xu, Shuqiang; Fan, J. M.; Luo, Fei

doi:10.1002/maco.200905435

Cited by 14 publications

(9 citation statements)

References 22 publications

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“…The continuous development of the light industry has increased demand for magnesium alloys, especially Mg-Al-Zn [26]. However, magnesium alloys are prone to be eroded [27,28,29,30], limiting practical applications. There are quite a few reasons that can account for the corrosion of magnesium alloys [31,32,33]; for instance, moist or polluted atmosphere, temperature, microorganisms, concentration of Cl − , Br − , SO 4 2− and NO 3 − , pH, etc.…”

Section: Introductionmentioning

confidence: 99%

Temporary Inhibition of the Corrosion of AZ31B Magnesium Alloy by Formation of Bacillus subtilis Biofilm in Artificial Seawater

Kang

et al. 2019

Materials

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It is well known that microorganisms tend to form biofilms on metal surfaces to accelerate/decelerate corrosion and affect their service life. Bacillus subtilis was used to produce a dense biofilm on an AZ31B magnesium alloy surface. Corrosion behavior of the alloy with the B. subtilis biofilm was evaluated in artificial seawater. The results revealed that the biofilm hampered extracellular electron transfer significantly, which resulted in a decrease of icorr and increase of Rt clearly compared to the control group. Moreover, an ennoblement of Ecorr was detected under the condition of B. subtilis biofilm covering. Significant reduction of the corrosion was observed by using the cyclic polarization method. All of these prove that the existence of the B. subtilis biofilm effectively enhances the anti-corrosion performance of the AZ31B magnesium alloy. This result may enhance the usage of bio-interfaces for temporary corrosion control. In addition, a possible corrosion inhibition mechanism of B. subtilis on AZ31B magnesium alloy was proposed.

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Section: Introductionmentioning

confidence: 99%

Temporary Inhibition of the Corrosion of AZ31B Magnesium Alloy by Formation of Bacillus subtilis Biofilm in Artificial Seawater

Kang

et al. 2019

Materials

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“…6,7 Electrodeposited Zn and Zn based alloys are useful corrosion protective coatings for magnesium alloys. 8 The electrodeposition of Zn coating is usually produced in aqueous solution. Yet, magnesium and its alloys are considered to be water sensitive substrates and difficult to electroplate because of their high chemical reactivity.…”

Section: Introductionmentioning

confidence: 99%

Influence of pulse waveforms on electrodeposition of Zn coating

Dai

Wang

Liang

et al. 2013

Surface Engineering

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Zn coatings were electrodeposited successfully from a ChCl based ionic liquid with four different pulse waveforms, namely, square pulse, sine pulse, sawtooth pulse and triangular pulse. The compositions and microstructures of the Zn coatings were investigated by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD). The adhesion and corrosion resistance of the Zn coatings on magnesium alloy was evaluated using scratch tests and electrochemical polarisation tests respectively. It was shown that the pulse modes have a great influence on the morphologies and microstructures of the Zn coatings. The Zn coating deposited from sawtooth pulse was evidently uniform, smooth and dense compared with other coatings. Correspondingly, the sawtooth pulse coating exhibited better adhesion and corrosion resistance in comparison with other pulses.

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“…Unfortunately, their poor corrosion properties hinder their widespread use in many applications 1–3. There are a number of technologies including electrochemical plating, conversion coatings, anodizing, hydride coatings, organic coatings, and vapor‐phase processes available which have been used to enhance their corrosion resistance 4–22, but the vapor‐phase processes cost more and cover rather smaller areas than anodization and conversion coating treatment, which limits their applications.…”

Section: Introductionmentioning

confidence: 99%

Effect of alternating voltage treatment on corrosion resistance of AZ91D magnesium alloy

Liu

Zhang

Shao

et al. 2011

Materials & Corrosion

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AZ91D magnesium alloy was treated by the alternating voltage (AV) treatment technique. The optimal AV‐treatment parameters of the alloy were determined by orthogonal experiments. Polarization curve, electrochemical impedance spectroscopy (EIS), and scanning electrochemical microscopy (SECM) were used to understand the effect of AV‐treatment on the corrosion resistance of the alloy. AFM, contact angle, and XPS were employed to investigate further the influence of AV‐treatment on the properties of the surface film formed on the alloy after AV‐treatment. The results showed that a uniform and stable film was formed and the corrosion resistance of AZ91D magnesium alloy was significantly improved after AV‐treatment. This was caused by the noticeable change of the chemical structure and semi‐conducting properties of the surface film after AV‐treatment.

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Electrodeposition of zinc on AZ91D magnesium alloy pre‐treated by stannate conversion coatings

Cited by 14 publications

References 22 publications

Temporary Inhibition of the Corrosion of AZ31B Magnesium Alloy by Formation of Bacillus subtilis Biofilm in Artificial Seawater

Temporary Inhibition of the Corrosion of AZ31B Magnesium Alloy by Formation of Bacillus subtilis Biofilm in Artificial Seawater

Influence of pulse waveforms on electrodeposition of Zn coating

Effect of alternating voltage treatment on corrosion resistance of AZ91D magnesium alloy

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