Features of the corrosion processes development at the magnesium alloys surface

Gnedenkov, Andrey S.; Sinebryukhov, Sergey L.; Mashtalyar, D. V.; Gnedenkov, Sergey V.

doi:10.1016/j.surfcoat.2013.03.023

Cited by 39 publications

(32 citation statements)

References 42 publications

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“…Localized corrosion also occurs frequently for Mg alloys [15,22,[54][55][56][57][58]. Cao et al [15] and Shi et al [22], for Mg alloys immersed in 3.5 wt.% NaCl solution saturated with Mg(OH)2 at their open circuit potentials, observed localized corrosion on binary Mg alloys attributed to the presence of second phase particles.…”

Section: (B)mentioning

confidence: 97%

“…Cao et al [15] and Shi et al [22], for Mg alloys immersed in 3.5 wt.% NaCl solution saturated with Mg(OH)2 at their open circuit potentials, observed localized corrosion on binary Mg alloys attributed to the presence of second phase particles. Recently, localized corrosion and micro-galvanic corrosion of Mg alloys has been studied using new approaches, such as scanning vibrating electrode technique (SVET), scanning ion-selective electrode technique (SIET) and scanning vibrating probe method (SVP) [54][55][56][57][58]. For example, Gnedenkov et al [54] found that micro-galvanic corrosion was crucial for the corrosion of MA8 (Mg-Mn-Ce) and VMD10 (Mg-Zn-Zr-Y) based on SVP measurements.…”

Section: (B)mentioning

confidence: 99%

“…Recently, localized corrosion and micro-galvanic corrosion of Mg alloys has been studied using new approaches, such as scanning vibrating electrode technique (SVET), scanning ion-selective electrode technique (SIET) and scanning vibrating probe method (SVP) [54][55][56][57][58]. For example, Gnedenkov et al [54] found that micro-galvanic corrosion was crucial for the corrosion of MA8 (Mg-Mn-Ce) and VMD10 (Mg-Zn-Zr-Y) based on SVP measurements. Williams et al [56] used SVET to investigate localized corrosion of AZ31, and found that cathodic activation was associated with an enrichment in noble Al-Mn particles.…”

Section: (B)mentioning

confidence: 99%

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Corrosion and passivation of magnesium alloys

2016

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This paper reviews and discusses the possibility of the production of a passive magnesium (Mg) alloy through metallurgical approaches, such as purification, alloying, heat-treatment, mechanical processing and non-equilibrium sputter deposition. High-purity Mg and all existing Mg alloys produced by traditional methods are found to be active in a chloride containing solution. Passivity in a Mg alloy might be produced through a non-equilibrium technique with a sufficiently-high concentration of a strong passivating element supersaturated in the matrix phase. This paper clarifies important concepts regarding the passivity of Mg alloys, and suggests possible approaches to develop a passive, corrosion-resistant Mg alloy.

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Section: (B)mentioning

confidence: 97%

Section: (B)mentioning

confidence: 99%

Section: (B)mentioning

confidence: 99%

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Corrosion and passivation of magnesium alloys

2016

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“…Usually, the capacitive loops are attributed to charge transfer, film effects, and mass transfer in the corrosion product layer. [42] Enlargement of the capacitive loop diameter indicates an increase in impedance and decrease in corrosion rate. The impedances of the Mg-Zn alloy and Mg-Zn/HA composite are 2534 and 1878 Xcm 2 , respectively, which are larger than those of the pure Mg compact (1227 Xcm 2 ).…”

Section: E Effect Of Ha Content On Corrosion Behaviormentioning

confidence: 99%

“…In addition, according to the polarization curves, there was no rough appearance of the anodic curve, explaining the lack of associated repeated breakdown and regeneration of the passivation layer in regard to pitting corrosion. [18,42] …”

Section: E Effect Of Ha Content On Corrosion Behaviormentioning

confidence: 99%

Enhanced Mechanical Properties and Corrosion Behavior of Biodegradable Mg-Zn/HA Composite

Salleh

Hussain

Ramakrishnan

et al. 2017

Metall Mater Trans A

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Magnesium (Mg) and its alloys have shown potential for use in the biomedical industry due to their excellent biological performance and biodegradability in the bioenvironment. Thus, the aim of the present study was to develop a reliable biodegradable hard tissue substituent. Biodegradable and bioactive Mg-Zinc (Zn) reinforced by hydroxyapatite (HA) composite was prepared using mechanically alloyed Mg-6.5 wt pct Zn and pure HA powders as starting materials. Various HA contents (i.e., 5, 10, 15, and 20 wt pct) were introduced in forming the Mg-Zn/HA composite. The effect of bioactive HA incorporation in biodegradable Mg-6.5 wt pct Zn alloy matrix on mechanical and biodegradation properties as well as microstructural observation was investigated. As measured by the Williamson-Hall formula, the Mg crystallite size of the sintered composites containing 5, 10, 15, and 20 wt pct HA were 36.76, 29.08, 27.93, and 27.31 nm, respectively. According to X-ray diffraction (XRD) analysis, there was no new crystalline phase formed during milling, indicating that no mechanochemical reactions between Mg-Zn alloy and HA occurred. The À1.70 V shifted significantly toward the passive position of the plain Mg-6.5 wt pct Zn alloy and Mg-Zn/10 wt pct HA composite, which were À1.50 and À1.46 V, respectively, indicating that the Mg-Zn/10 wt pct HA composite was least susceptible to corrosion in the bioenvironment.

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Hydrophobicity and tribological properties of Al2O3/PTFE composite coating

Liu

Zhang

et al. 2018

Rare Met.

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Features of the corrosion processes development at the magnesium alloys surface

Cited by 39 publications

References 42 publications

Corrosion and passivation of magnesium alloys

Corrosion and passivation of magnesium alloys

Enhanced Mechanical Properties and Corrosion Behavior of Biodegradable Mg-Zn/HA Composite

Hydrophobicity and tribological properties of Al2O3/PTFE composite coating

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