Microstructure and corrosion resistance of Ce–V conversion coating on AZ31 magnesium alloy

2015 ◽  
Vol 341 ◽  
pp. 166-174 ◽  
Author(s):  
Xiao Jiang ◽  
Ruiguang Guo ◽  
Shuqin Jiang
Keyword(s):  
Corrosion Resistance ◽  
Magnesium Alloy ◽  
Conversion Coating ◽  
Az31 Magnesium Alloy

Crack self-healing of phytic acid conversion coating on AZ31 magnesium alloy by heat treatment and the corrosion resistance

2014 ◽  
Vol 313 ◽  
pp. 896-904 ◽  
Author(s):  
Ruiyue Zhang ◽  
Shu Cai ◽  
Guohua Xu ◽  
Huan Zhao ◽  
Yan Li ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Corrosion Resistance ◽  
Magnesium Alloy ◽  
Phytic Acid ◽  
Conversion Coating ◽  
Az31 Magnesium Alloy ◽  
Self Healing

A simple method for the preparation of magnesium phosphate conversion coatings on a AZ31 magnesium alloy with improved corrosion resistance

RSC Advances ◽  
2015 ◽  
Vol 5 (31) ◽  
pp. 24586-24590 ◽  
Author(s):  
Huan Zhao ◽  
Shu Cai ◽  
Zetao Ding ◽  
Ming Zhang ◽  
Yan Li ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Magnesium Alloy ◽  
Conversion Coating ◽  
Az31 Magnesium Alloy ◽  
Magnesium Phosphate ◽  
Conversion Coatings ◽  
Simple Method ◽  
Alloy Az31 ◽  
Magnesium Alloy Az31

A simple method has been proposed for the preparation of magnesium phosphate conversion coating on a magnesium alloy (AZ31) to achieve protection against fast degradation in an implant environment.

scholarly journals Characterization and Corrosion Properties of Fluoride Conversion Coating Prepared on AZ31 Magnesium Alloy

Coatings ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 675
Author(s):  
Juliána Dziková ◽  
Stanislava Fintová ◽  
Daniel Kajánek ◽  
Zuzana Florková ◽  
Jaromír Wasserbauer ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Magnesium Alloy ◽  
Molten Salt ◽  
Electrochemical Impedance ◽  
Intermetallic Phase ◽  
Negative Influence ◽  
Conversion Coating ◽  
Az31 Magnesium Alloy ◽  
Corrosion Properties ◽  
Coating Temperature

Wrought AZ31 magnesium alloy was used as the experimental material for fluoride conversion coating preparation in Na[BF4] molten salt. Two coating temperatures, 430 °C and 450 °C, and three coating times, 0.5, 2, and 8 h, were used for the coating preparation. A scanning electron microscope and energy-dispersive X-ray spectroscopy were used for an investigation of the surface morphology and the cross-sections of the prepared coatings including chemical composition determination. The corrosion resistance of the prepared specimens was investigated in terms of the potentiodynamic tests, electrochemical impedance spectroscopy and immersion tests in the environment of simulated body fluids at 37 ± 2 °C. The increase in the coating temperature and coating time resulted in higher coatings thicknesses and better corrosion resistance. Higher coating temperature was accompanied by smaller defects uniformly distributed on the coating surface. The defects were most probably created due to the reaction of the AlxMny intermetallic phase with Na[BF4] molten salt and/or with the product of its decomposition, BF3 compound, resulting in the creation of soluble Na3[AlF6] and AlF3 compounds, which were removed from the coating during the removal of the secondary Na[MgF3] layer. The negative influence of the AlxMny intermetallic phase was correlated to the particle size and thus the size of created defects.

Al–AlN composite coatings on AZ31 magnesium alloy for surface hardening and corrosion resistance

Vacuum ◽  
2021 ◽  
pp. 110146
Author(s):  
Wenling Xie ◽  
Yiman Zhao ◽  
Bin Liao ◽  
Pan Pang ◽  
Dongsing Wuu ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Magnesium Alloy ◽  
Surface Hardening ◽  
Composite Coatings ◽  
Az31 Magnesium Alloy

Phosphate film free of chromate, fluoride and nitrite on AZ31 magnesium alloy and its corrosion resistance

2012 ◽  
Vol 22 (11) ◽  
pp. 2713-2718 ◽  
Author(s):  
Xue-jun CUI ◽  
Chun-hai LIU ◽  
Rui-song YANG ◽  
Ming-tian LI ◽  
Xiu-zhou LIN ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Magnesium Alloy ◽  
Az31 Magnesium Alloy ◽  
Phosphate Film
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