Microplasma Oxidation of Magnesium Alloy AZ91D by Impulse Current

2015 ◽  
Vol 227 ◽  
pp. 151-154 ◽  
Author(s):  
Ginter Nawrat ◽  
Małgorzata Wierzbińska ◽  
Tomasz Wieczorek ◽  
Łukasz Nieużyła ◽  
Agnieszka Krząkała ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Thickness Distribution ◽  
Sodium Silicate Solution ◽  
Silicate Solution ◽  
Microplasma Oxidation ◽  
Alloy Az91d ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic ◽  
Special Respect ◽  
Impulse Current

In this work the results of investigations on thickness distribution of conversion coatings on magnesium alloy AZ91D obtained by plasma electrolytic oxidation (PEO) in sodium silicate solution are presented. The morphology and chemical composition as well as thickness distribution of obtained coatings, with special respect to hard to reach points are shown. Also the corrosion resistance of obtained alloy samples is determined.

Corrosion Characteristics of PEO Films on AZ31 Magnesium Alloys

2011 ◽  
Vol 189-193 ◽  
pp. 256-259
Author(s):  
Li Wang ◽  
Li Chen ◽  
Wen Fu
Keyword(s):  
Magnesium Alloy ◽  
Magnesium Alloys ◽  
Plasma Electrolytic Oxidation ◽  
Silicate Solution ◽  
Az31 Magnesium Alloy ◽  
Nacl Solution ◽  
Pitting Corrosion Resistance ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic ◽  
Az31 Magnesium Alloys

The aim of this work is to discuss the corrosion characteristics of plasma electrolytic oxidation (PEO) films formed on AZ31 magnesium alloys in alkaline silicate solution. The uniform and pitting corrosion resistance of the PEO films was investigated by potentiodynamic polarization tests and potentiodynamic scanning curve tests. The composition, the structure and the element contents of the films after immersed in 3.5 wt.% NaCl solution for different time were investigated by XRD、SEM and EDS. The results indicated that the corrosion occurred on AZ31 magnesium alloy and treated PEO samples during five days immersion, but the corrosion tendency of the PEO treated samples is smaller than that of AZ31 magnesium alloy.

Corrosion Mechanism of PEO Films on AZ31 Magnesium Alloys

2012 ◽  
Vol 461 ◽  
pp. 220-223 ◽  
Author(s):  
Li Wang ◽  
Wen Fu ◽  
Li Chen
Keyword(s):  
Magnesium Alloy ◽  
Magnesium Alloys ◽  
Plasma Electrolytic Oxidation ◽  
Silicate Solution ◽  
Corrosion Mechanism ◽  
Nacl Solution ◽  
Electrolytic Oxidation ◽  
Corrosion Mechanisms ◽  
Plasma Electrolytic ◽  
Az31 Magnesium Alloys

The corrosion mechanisms of plasma electrolytic oxidation (PEO) films formed on AZ31 magnesium alloys were discussed in alkaline silicate solution. The structure and element contents of the films after immersed in 3.5 wt.% NaCl solution were investigated by SEM and EDS. The results indicated that the corrosion occurred on AZ31 magnesium alloy and the treated PEO samples during five days immersion. The corrosion procedure of the samples was depicted.

MODELING OF THE ELECTROLYZER ELECTRIC FIELD FOR PEO OF MAGNESIUM FOR THE STUDY OF SPECIAL CHAPTERS OF ELECTRICAL ENGINEERING

2019 ◽  
Author(s):  
Veta Mukaeva ◽  
E. Parfenov ◽  
R. Mukaev ◽  
M. Gorbatkov
Keyword(s):  
Magnesium Alloy ◽  
Electric Field ◽  
Plasma Electrolytic Oxidation ◽  
Electrical Engineering ◽  
Professional Competencies ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic

The issue of modeling the distribution of the electric field in the electrolyzer during the plasma-electrolytic oxidation of a magnesium alloy for the motivation and formation of professional competencies for students in the study of electrical engineering disciplines is considered.

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