The anodization of ZK60 magnesium alloy in alkaline solution containing silicate and the corrosion properties of the anodized films

“…The results showed that the chemical conversion layers were not effective in preventing magnesium alloys from corrosion. The anodic oxidation processes of various magnesium alloys and corrosion resistance of the coatings were also investigated in the detail [33,34]. As compared with the chemical conversion layers, the anodic oxidation coatings were more effective in improving corrosion resistance of magnesium alloys.…”

Section: Surface Modification Of Magnesium Alloysmentioning

confidence: 99%

A review: Hot topics on magnesium technology in China

Chen

2008

Front. Mater. Sci. China

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Magnesium alloys have wide applications in automobiles, aerospace and so on due to many advantages, while a number of undesirable properties including poor corrosion resistance, inferior creep resistance and bad plastic processing ability have hindered their applications. Creep-resistant magnesium alloy design, plastic processing of magnesium alloys and rapid solidification processing of magnesium alloys have become the hot topics in magnesium technology. Other than these, surface modification as well as laser beam welding are also involved. The research progress and development in magnesium technology in China are reviewed in the paper.

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“…8 [16]. R s , C c , R po , C dl and R ct circuit components are explained as follow: R s is the solution resistance between the reference and working electrodes.…”

Section: Electrochemical Impedance Spectroscopymentioning

confidence: 99%

“…Nonetheless, surface treatments do exist, in which selection is typically based in accordance to the environment in which the implant will interact with [12]. Some of the following approaches have been employed and include electrochemical deposition [13], chemical conversion [14], ion implantation [13] micro-arc oxidation [15], and anodization [16,17].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical characterization and in-vitro bio-assessment of AZ31B and AZ91E alloys as biodegradable implant materials

Rahman

Pompa²,

Haider

2015

J Mater Sci: Mater Med

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The degradation of magnesium alloys, AZ31B and AZ91E, are under review due to a their ability to degrade under physiological conditions and successively yield an oxidized biocompatible by-product which can safely be absorbed by the body. By exploiting the biodegradability of magnesium alloys, the prospects of developing an unprecedented class of implant are at hand. To do so however, the rate of corrosion of the alloys must be modified in order to better suit physiological conditions. Therefore, anodization was carried out on AZ31B and AZ91E specimens to alter the surface chemistry to reduce the corrosion rates and improve biocompatibility. Scanning electron microscopy, energy dispersive spectroscopy, atomic force microscopy and contact angle meter, were used to characterize and compare the surfaces of untreated and anodized magnesium alloys. Corrosion behavior was evaluated by electrochemical tests using potentiodynamic polarization and electrochemical impedance spectroscopy, to verify changes in corrosion rates as a result of anodization. Finally, a bio-assessment using MTS assays and fluorescent microscopy were carried out to ensure that the anodization process had no compromise on the biocompatibility of the magnesium alloys. The study indicated that the anodization process did alter the surface chemistry of the alloys, yielding slower corrosion rates, while causing no adverse effects in regards to biocompatibility.

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The anodization of ZK60 magnesium alloy in alkaline solution containing silicate and the corrosion properties of the anodized films

Cited by 85 publications

References 12 publications

Environmental friendly anodizing of AZ91D magnesium alloy in alkaline borate–benzoate electrolyte

Environmental friendly anodizing of AZ91D magnesium alloy in alkaline borate–benzoate electrolyte

A review: Hot topics on magnesium technology in China

Electrochemical characterization and in-vitro bio-assessment of AZ31B and AZ91E alloys as biodegradable implant materials

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