Electrochemical corrosion properties of CeO2-containing coatings on AZ31 magnesium alloys prepared by plasma electrolytic oxidation

2012 ◽  
Vol 62 ◽  
pp. 104-111 ◽  
Author(s):  
Tae Seop Lim ◽  
Hyun Sam Ryu ◽  
Seong-Hyeon Hong
Keyword(s):  
Magnesium Alloys ◽  
Plasma Electrolytic Oxidation ◽  
Electrochemical Corrosion ◽  
Corrosion Properties ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic ◽  
Az31 Magnesium Alloys

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.

Plasma electrolytic oxidation coatings on AZ31 magnesium alloys with Si3N4 nanoparticle additives

2017 ◽  
Vol 332 ◽  
pp. 358-367 ◽  
Author(s):  
Bih-Show Lou ◽  
Yi-Yuan Lin ◽  
Chuan-Ming Tseng ◽  
Yu-Chu Lu ◽  
Jenq-Gong Duh ◽  
...  
Keyword(s):  
Magnesium Alloys ◽  
Plasma Electrolytic Oxidation ◽  
Electrolytic Oxidation ◽  
Plasma Electrolytic ◽  
Nanoparticle Additives ◽  
Az31 Magnesium Alloys

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.

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