Journal ArticleDOI
Formation mechanism of pulse current anodized film on AZ91D Mg alloy
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TLDR
In this paper, the kinetics of the forming process of pulse current anodized film on AZ91D Mg alloy were studied by the voltage and thickness time curves, and the surface morphology, structure, elemental constitution and valences of the anodic films were analyzed by SEM, EDS, XPS and XRD respectively.About:
This article is published in Transactions of Nonferrous Metals Society of China.The article was published on 2008-02-01. It has received 16 citations till now.read more
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Growth characteristics and corrosion resistance of micro-arc oxidation coating on pure magnesium for biomedical applications
TL;DR: In this article, a protective micro-arc oxidation (MAO) coating was prepared on pure magnesium in aqueous solution without toxic components under a constant current density, and SEM micrographs showed that a thick and dense coating can be obtained after anodizing for adequate time.
Journal ArticleDOI
Effect of pulse frequency on the microstructure, phase composition and corrosion performance of a phosphate-based plasma electrolytic oxidation coated AM50 magnesium alloy
TL;DR: An AM50 magnesium alloy was treated with a pulsed DC power supply at three different pulse frequencies viz., 10 Hz, 100 Hz and 1000 Hz with a constant pulse ratio for 15 min in an alkaline phosphate electrolyte.
Journal ArticleDOI
Production and Characterization of Boron-Doped Single Wall Carbon Nanotubes
F. H. Monteiro,Dunieskys G. Larrude,M.E.H. Maia da Costa,L. A. Terrazos,Rodrigo B. Capaz,F.L. Freire +5 more
TL;DR: In this article, boron-doped single wall carbon nanotubes were synthesized using high vacuum chemical vapor deposition (CVD) in a high vacuum CVD system.
Journal ArticleDOI
Improvement in corrosion characteristics of AZ31 Mg alloy by square pulse anodizing between transpassive and active regions
TL;DR: Anodizing was carried out in 2M NaOH with square pulses of different duty ratios between the transpassive (10−V Ag/AgCl ) and active regions (−1.35 V Ag/Cl ) of AZ31 Mg alloy as discussed by the authors.
Journal ArticleDOI
Pulsed current hard anodizing of heat treated aluminum alloys: Frequency and current amplitude influence
TL;DR: In this paper, the influence of frequency and amplitude on anodic oxide thickness, hardness, defectiveness, volumetric expansion ratio and on process faradic efficiency has been studied.
References
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Journal ArticleDOI
Recent Progress in Corrosion and Protection of Magnesium Alloys
TL;DR: The Cooperative Research Centre for Cast Metals Manufacturing (CAST) in Australia is one of the most active research organizations in the world established to cope with the problems associated with the development and application of advanced light metals.
Journal ArticleDOI
Study on the environmentally friendly anodizing of AZ91D magnesium alloy
TL;DR: In this paper, a new anodizing process based on an environmentally friendly electrolyte solution that contains none of chromate, phosphate or fluoride but can enhance the corrosion protection of magnesium alloy significantly, is investigated.
Journal ArticleDOI
The science, technology, and applications of magnesium
TL;DR: The very low density and excellent castability of magnesium is leading to increased use in various applications, especially in automobiles, despite poor galvanic corrosion resistance and a higher cost than aluminum.
Journal ArticleDOI
Characterization of anodic films formed on AZ91D magnesium alloy
Houng Yu Hsiao,Wen-Ta Tsai +1 more
TL;DR: Anodization of die-casted AZ91D magnesium alloy was performed in 3 M KOH+0.21 M Na 3 PO 4 + 0.6 M KF base electrolyte with and without Al(NO 3 ) 3 addition as discussed by the authors.
Patent
Anodisation of magnesium and magnesium based alloys
TL;DR: In this article, a method for the anodisation of magnesium in magnesium-based alloys using an electrolytic solution containing ammonia was proposed. But this method was not suitable for alloys and it required a large amount of energy.