Corrosion of metallic biomaterials

Venezuela, Jeffrey; Johnston, Sean; Dargusch, Matthew; Atrens, Andrej

doi:10.1016/b978-0-08-102965-7.00014-x

Cited by 5 publications

(5 citation statements)

References 178 publications

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“…This difference is reasonable and well documented. 8,11 For zinc, a recent review 8 observed a difference of about 2 to 6 times between the estimated corrosion rate values derived from polarization and immersion tests. These two corrosion tests are inherently disparate, and direct comparisons of derived CR values would be inadvisable.…”

Section: Weight Loss Measurementmentioning

confidence: 99%

“…This is also consistent with the literature that does not report the presence of ZnSO 4 -based corrosion products when Zn is exposed to physiological fluids. 8,11 This would indicate that though sulfates could create protective Zn compound films, such compounds were not present in the layer. This is reasonable since the sulfate cation would compete with the other cations, and its relatively small amount in S4 would put it at a thermodynamic disadvantage.…”

Section: Zn Corrosion Mechanism In the Differentmentioning

confidence: 99%

“…The human body offers a unique corrosion environment to a metallic implant. Fluids such as blood contain a number of ions (including Na + , K + , Mg + , Cl – , HPO 4 2– , and CO 3 2– ) that can influence an implant’s corrosion characteristics . The slightly higher temperature of the body (37 °C) can also accelerate reaction rates, while oxygen may be abundant or scarce depending on implant location.…”

Section: Introductionmentioning

confidence: 99%

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Exploring the Influence of Biologically Relevant Ions on the Corrosion Behavior of Biodegradable Zinc in Physiological Fluids

Almathami

Venezuela

Yang

et al. 2023

ACS Biomater. Sci. Eng.

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This work presents a study on the influence of biologically relevant ions on the corrosion of zinc (Zn) in physiological fluids. Electrochemical techniques were used to investigate the degradation of pure Zn exposed to different physiological electrolytes containing chlorides, carbonates, sulfates, and phosphates. The corrosion behavior of Zn in the solutions over a 7-day period was also assessed. SEM, EDS, and FTIR were used to analyze corrosion products. With respect to corrosion, the most aggressive ions are chlorides, which induce localized corrosion, while carbonates and phosphates reduce the corrosive attack of the chloride on Zn while inducing uniform corrosion. Sulfates reduce the corrosion rate by disrupting Zn’s passive layer. The overall corrosion rate of Zn changed in each electrolyte depending on the nature of the solution and the corrosion product formed. These findings will be useful in predicting the in-service behavior of future biodegradable Zn medical implants.

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Section: Weight Loss Measurementmentioning

confidence: 99%

Section: Zn Corrosion Mechanism In the Differentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Exploring the Influence of Biologically Relevant Ions on the Corrosion Behavior of Biodegradable Zinc in Physiological Fluids

Almathami

Venezuela

Yang

et al. 2023

ACS Biomater. Sci. Eng.

Self Cite

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“…Magnesium has the fastest corrosion rate, followed by zinc, and iron. 135 Each element is an essential nutrient. The recommended daily intake is 320–420 mg of magnesium, 6.5–15 mg of zinc, and 10–20 mg of iron.…”

Section: Biodegradable Metals As Candidates For Pelvic Meshmentioning

confidence: 99%

“…The recommended daily intake is 320–420 mg of magnesium, 6.5–15 mg of zinc, and 10–20 mg of iron. 135,136 However, uncontrolled and non-uniform corrosion is a possible concern. 51,137,138 This requires that the biodegradable metal for any application must be chosen to have the appropriate uniform corrosion rate that is appropriate to the particular application so that the biodegradable metal component (mesh, screw, wire etc .)…”

Section: Biodegradable Metals As Candidates For Pelvic Meshmentioning

confidence: 99%