Hydroxyapatite Coating on Fluorine-treated Magnesium Alloy by Hydrothermal Method and Its Electrochemical Corrosion Behaviour in Hank’s Solution

2019 ◽  
Vol 55 (1) ◽  
pp. 127-135
Author(s):  
Zhang Chunyan ◽  
Ma Yanlong ◽  
Liu Chenglong
Keyword(s):  
Magnesium Alloy ◽  
Hydrothermal Method ◽  
Corrosion Behaviour ◽  
Electrochemical Corrosion ◽  
Hydroxyapatite Coating ◽  
Hank’S Solution ◽  
Electrochemical Corrosion Behaviour

scholarly journals Dimensional Changes, Microstructure, Microhardness Distributions And Corrosion Properties Of Iron And Iron-Manganese Sintered Materials

2015 ◽  
Vol 60 (2) ◽  
pp. 639-642
Author(s):  
M. Kupková ◽  
M. Hrubovčáková ◽  
A. Zeleňák ◽  
M. Sułowski ◽  
A. Ciaś ◽  
...  
Keyword(s):  
Corrosion Behaviour ◽  
Electrochemical Corrosion ◽  
Corrosion Properties ◽  
Dimensional Changes ◽  
Microhardness Distribution ◽  
Mn Content ◽  
Iron Manganese ◽  
Hank’S Solution ◽  
Sintered Materials ◽  
Electrochemical Corrosion Behaviour

Abstract Iron samples and Fe-Mn alloys with Mn content of 25 wt.% and 30 wt.% were prepared by blending, compressing and sintering with the aim to study their dimensional changes, microstructure, microhardness distribution and primarily the electrochemical corrosion behaviour in a simulated body environment. The light microscopy (LM), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and micro-hardness measurements revealed a microheterogeneous multiphase structure of sintered Fe-Mn samples. The potentiodynamic tests have demonstrated that the corrosion rates of such Fe-Mn alloys immersed in Hank’s solution were higher than those for a pure iron, and also higher than the rates reported for homogeneous Fe-Mn alloys.

Influence of bicarbonate concentration on the conversion layer formation onto AZ31 magnesium alloy and its electrochemical corrosion behaviour in simulated body fluid

RSC Advances ◽  
2016 ◽  
Vol 6 (55) ◽  
pp. 49910-49922 ◽  
Author(s):  
Arthanari Srinivasan ◽  
Kwang Seon Shin ◽  
Nallaiyan Rajendran
Keyword(s):  
Magnesium Alloy ◽  
Simulated Body Fluid ◽  
Body Fluid ◽  
Corrosion Behaviour ◽  
Electrochemical Corrosion ◽  
Magnesium Carbonate ◽  
Az31 Magnesium Alloy ◽  
Bicarbonate Concentration ◽  
Sbf Solution ◽  
Electrochemical Corrosion Behaviour

The electrochemical corrosion behaviour of a magnesium carbonate conversion layer-coated AZ31 magnesium alloy was evaluated in simulated body fluid (SBF) solution.

scholarly journals Electrochemical Corrosion Behaviour of WE54 Magnesium Alloy

2013 ◽  
Vol 765 ◽  
pp. 644-647
Author(s):  
O. Kazum ◽  
Mathan Bobby Kannan ◽  
Nico Scharnagl ◽  
Carsten Blawert ◽  
Ying He He
Keyword(s):  
Magnesium Alloy ◽  
Electrochemical Impedance ◽  
Corrosion Behaviour ◽  
Electrochemical Techniques ◽  
Electrochemical Corrosion ◽  
Corrosion Current ◽  
Pure Magnesium ◽  
Pitting Corrosion Resistance ◽  
Electrochemical Corrosion Behaviour

The electrochemical corrosion behaviour of WE54 magnesium alloy in 0.5 wt.% NaCl solution was studied using electrochemical techniques. Polarization results suggested that the rare-earths in WE54 alloy enhanced the passivation tendency of the alloy and decreased the corrosion current by ~30% compared to pure magnesium. Pitting corrosion resistance was also higher in WE54 alloy than that in pure magnesium. Long-term electrochemical impedance results showed that the polarization resistance of WE54 alloy was more than two times higher than that of pure magnesium even after initial passivity breakdown.

scholarly journals Electrochemical Corrosion Behaviour of ZE41 and QE22 Magnesium Alloys

2011 ◽  
Vol 690 ◽  
pp. 385-388 ◽  
Author(s):  
M. Bobby Kannan ◽  
Carsten Blawert ◽  
Wolfgang Dietzel
Keyword(s):  
Corrosion Resistance ◽  
Magnesium Alloy ◽  
Magnesium Alloys ◽  
Rare Earths ◽  
Pitting Corrosion ◽  
Corrosion Behaviour ◽  
Electrochemical Corrosion ◽  
Localized Corrosion ◽  
Az80 Magnesium Alloy ◽  
Electrochemical Corrosion Behaviour

The study suggests that the rare-earths containing magnesium alloys ZE41 and QE22 exhibit a poorer corrosion resistance than the AZ80 magnesium alloy. Electrochemical experiments showed that the two rare-earths containing alloys are highly susceptible to localized corrosion. Post corrosion analysis revealed intergranular and pitting corrosion in ZE41, whereas QE22 alloy underwent only pitting corrosion.

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