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Ambat, Rajan; Aung, Naing Naing; Zhou, Wei

doi:10.1023/a:1004011916609

Cited by 181 publications

(65 citation statements)

References 13 publications

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“…This theory is supported by the results presented in [33,34,36]. The authors describe the effect of the chlorides and sulphate ions concentration on the corrosion resistance of magnesium alloys.…”

Section: Discussionsupporting

confidence: 53%

“…Ambat et al studied in [33] the influence of chloride ion concentration and pH on the corrosion and electrochemical behavior of die-cast and ingot-cast AZ91D alloy. The effect of chloride ion concentration was studied in NaCl (0-10%) solutions at pH 7.25.…”

Section: Introductionmentioning

confidence: 99%

“…Even thought, magnesium alloys corrosion properties are widely investigated, most of the studies are performed in NaCl and Na 2 SO 4 solutions simulating corrosion environment in engineering applications [33][34][35][36]. Corrosion behavior of magnesium alloys was studied in several types of HBSS [22][23][24][25][26][27][28][29][30][31][32], however, the influence of the chemical composition of HBSS on corrosion processes is not available in the literature according to the authors' knowledge.…”

Section: Introductionmentioning

confidence: 99%

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Influence of the Composition of the Hank’s Balanced Salt Solution on the Corrosion Behavior of AZ31 and AZ61 Magnesium Alloys

Tkácz

Doležal

Drábiková

et al. 2017

Metals

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Abstract:The electrochemical corrosion characteristics of AZ31 and AZ61 magnesium alloys were analyzed in terms of potentiodynamic tests and electrochemical impedance spectroscopy. The influence of the solution composition and material surface finish was examined also through the analysis of corrosion products created on the samples' surface after electrochemical measurements in terms of scanning electron microscopy using energy-dispersive spectroscopy. Obtained data revealed the differences in the response of the magnesium alloys to enriched Hank's Balanced Salt Solution-HBSS+ (with Mg 2+ and Ca 2+ ions) and Hank's Balanced Salt Solution-HBSS (without Mg 2+ and Ca 2+ ions). Both examined alloys exhibited better corrosion resistance from the thermodynamic and kinetic point of view in the enriched HBSS+. AZ61 magnesium alloy reached higher values of polarization resistance than AZ31 magnesium alloy in both the used corrosion solutions. Phosphate-based corrosion products were characteristic for the AZ31 and AZ61 alloys tested in the HBSS (without Mg 2+ and Ca 2+ ions). The combination of phosphate-based corrosion products and clusters of MgO and Mg(OH) 2 was typical for the surface of samples tested in the enriched HBSS+ (with Mg 2+ and Ca 2+ ions). Pitting corrosion attack was observed only in the case of enriched HBSS+.

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Section: Discussionsupporting

confidence: 53%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence of the Composition of the Hank’s Balanced Salt Solution on the Corrosion Behavior of AZ31 and AZ61 Magnesium Alloys

Tkácz

Doležal

Drábiková

et al. 2017

Metals

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“…However, a critical limitation for the extensive usage of magnesium alloys is their high susceptibility to corrosion, especially in aggressive environments, which is primarily attributed to the high chemical activity of magnesium and the unstable passive film on the surface of these alloys [3][4][5]. Many researchers have addressed the influence of various corrosive environments on the corrosion behaviour of pure magnesium and/or magnesium alloys for the understanding of environmental factors controlling corrosion [5-12].…”

Section: Introductionmentioning

confidence: 99%

Influence of chloride ion concentration on the electrochemical corrosion behaviour of plasma electrolytic oxidation coated AM50 magnesium alloy

Liang

Srinivasan

Blawert

et al. 2010

Electrochimica Acta

143

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The electrochemical degradation of a silicate-and a phosphate-based plasma electrolytic oxidation (PEO) coated AM50 magnesium alloy obtained using a pulsed DC power supply was investigated using potentiodynamic polarisation and electrochemical impedance spectroscopy (EIS) in NaCl solutions of different chloride ion concentrations viz., 0.01M, 0.1M, 0.5M and 1M. The surface of the PEO coated specimens after 50 h of immersion/EIS testing was examined by optical microscopy and scanning electron microscopy. The results showed that the corrosion deterioration of PEO coated magnesium alloy in NaCl solutions was significantly influenced by chloride ion concentration. The silicate-based coating was found to offer a superior corrosion resistance to the magnesium substrate than the phosphate based coatings in lower chloride ion concentration NaCl solutions (0.01 M and 0.1 M NaCl). On the other hand both these PEO coatings were found to be highly susceptible to localized damage, and could not provide an effective corrosion protection to Mg alloy substrate in solutions containing higher chloride concentrations (0.5 M and 1 M). The extent of localized damage was observed to be more with increase in chloride concentration in both the cases.

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“…Magnesium and its alloys are candidates for reducing the weight of automobiles and airplanes, but magnesium-based components have very low corrosion resistance in many environments [1][2][3]. Solving the corrosion problem is a key element to enable wider use of magnesium-based components.…”

Section: Introductionmentioning

confidence: 99%

Corrosion resistant TiO2 film formed on magnesium by liquid phase deposition treatment

Fujita

Sakairi

Kikuchi

et al. 2011

Electrochimica Acta

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Liquid phase deposition treatment (LPD) was applied to form a corrosion protective titanium dioxide (TiO 2 ) film on commercially available pure magnesium. Changing the solution pH, from acidic to highly alkaline, and with the addition of sucrose, it becomes possible to form a highly adhesive and thin TiO 2 film on commercially available pure magnesium without any heat treatment. The role of the sucrose may be attributed to the formation of tetrafluoroboric acid (BF 4 ) -in the solution reducing the homogeneous nucleation of TiO 2 in the LPD solution. The film formed in the weak alkaline environment shows better corrosion resistance than at other LPD conditions, while the average rest potential is the same as that of as-polished specimens. This low rest potential may be due to micro-cracks in the formed film and high activity of the magnesium substrate.

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Untitled

Cited by 181 publications

References 13 publications

Influence of the Composition of the Hank’s Balanced Salt Solution on the Corrosion Behavior of AZ31 and AZ61 Magnesium Alloys

Influence of the Composition of the Hank’s Balanced Salt Solution on the Corrosion Behavior of AZ31 and AZ61 Magnesium Alloys

Influence of chloride ion concentration on the electrochemical corrosion behaviour of plasma electrolytic oxidation coated AM50 magnesium alloy

Corrosion resistant TiO2 film formed on magnesium by liquid phase deposition treatment

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