Corrosion of high purity Mg, AZ91, ZE41 and Mg2Zn0.2Mn in Hank’s solution at room temperature

Abidin, Nor Ishida Zainal; Martin, Darren J.; Atrens, Andrej

doi:10.1016/j.corsci.2010.10.008

Cited by 138 publications

(38 citation statements)

References 35 publications

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“…This composite corrosion film could significantly reduce the penetration of Cl -across the corrosion interface between the fresh alloy surface and the corrosion film [50,51], and hence inhibit the tendency of galvanic corrosion. By comparing the corrosion rate of high purity Mg, Mg-9Al-Zn, Mg-4Zn-1RE and Mg-2Zn-0.2Mn alloys in Hank's solution, it is found the galvanic tendency is only weakly influenced by second phase particles [52]. This is attributed to the formation of protective corrosion film on the surface.…”

Section: Corrosionmentioning

confidence: 89%

Microstructure, mechanical and corrosion properties of Mg–Dy–Gd–Zr alloys for medical applications

et al. 2013

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In previous investigations Mg-10Dy (wt.%) alloy with a good combination of corrosion resistance and cytocompatibility showed a great potential for the use as biodegradable implant material. However, the mechanical properties of Mg-10Dy alloy are not satisfactory. In order to allow the tailoring of mechanical properties required for various medical applications, four Mg-10(Dy+Gd)-0.2Zr (wt.%) alloys were investigated with respect to microstructure, mechanical and corrosion properties.With the increase of Gd content, the amount of second phase particles increased in the as-cast alloys and the age hardening response increased at 200 °C. The yield strength increased while the ductility reduced especially for peak-aged alloys with the addition of Gd. Additionally, with increasing Gd content, the corrosion rate increased in the as-cast condition due to galvanic effect, but all the alloys have a similar corrosion rate (about 0.5 mm/year) in solution treated and aged condition.

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Section: Corrosionmentioning

confidence: 89%

Microstructure, mechanical and corrosion properties of Mg–Dy–Gd–Zr alloys for medical applications

et al. 2013

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“…At these impurity sites, localised corrosion forms caused by the galvanic reaction between the impurities and the Mg phase [8]. However, general corrosion also occurs and is evident by a high frequency of shallow localised corrosion [9]. This is contrasted by localised corrosion as this forms deeper pits in the Mg surface.…”

Section: Hp Mg Corrosion Mechanismsmentioning

confidence: 86%

“…During the test, the HP samples would undergo general corrosion, however as the main type of corrosion occurred by the AZ91 sample is micro-galvanic corrosion that occurs between the two phases, it corrodes slower. As Zainal described, the Hanks' solution gives the samples protection between the phase by adding resistance [9]. This slows the galvanic corrosion that would occur and results in the AZ91 corroding slower than the HP counterparts.…”

Section: Mass Loss Datamentioning

confidence: 99%

“…This could be due to the low Hydrogen evolved during the incubation period. As Zainal results showed, there was a period of time, between 6 to 10 days were the corrosion rate was lower than the actual steady state corrosion rate of each sample [9]. Therefore, the Ph/Pm should be more accurate after this time.…”

Section: Mass Loss Datamentioning

confidence: 99%

“…AZ91 Mg is made up of two phases, a Mg and a Al-Mg phase (Mg17Al12) [9]. The Mg17Al12 phase is cathodic to the Mg phase and galvanic corrosion occurs [10].…”

Section: Az91 Mg Corrosion Mechanismmentioning

confidence: 99%

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Influence of cations on the corrosion of biodegradable Mg alloys in Hanks’ solution

Hardy¹

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Biodegradable implants have gather increasing interest in modern times, due to their unique properties. Of these implants, Mg has gathered interest due to its favourable mechanical properties and highly corrosive nature. Extensive research has been undertaken to investigate the effects of pH and anions in the solution, however, little research has gone into investigating the influence of cations in the solution, especially in physiological conditions.

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Development of Mg ‐Based Degradable Metallic Biomaterials

2017

Metallic Biomaterials

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Corrosion of high purity Mg, AZ91, ZE41 and Mg2Zn0.2Mn in Hank’s solution at room temperature

Cited by 138 publications

References 35 publications

Microstructure, mechanical and corrosion properties of Mg–Dy–Gd–Zr alloys for medical applications

Microstructure, mechanical and corrosion properties of Mg–Dy–Gd–Zr alloys for medical applications

Influence of cations on the corrosion of biodegradable Mg alloys in Hanks’ solution

Development of Mg ‐Based Degradable Metallic Biomaterials

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