Corrosion resistance and tribological behavior of ZK30 magnesium alloy coated by plasma electrolytic oxidation

Rodrigues, Joel da Silva; Antonini, Leonardo Marasca; Bastos, António Alexandre da Cunha; Zhou, Jie; Malfatti, Célia de Fraga

doi:10.1016/j.surfcoat.2021.126983

Cited by 33 publications

(10 citation statements)

References 52 publications

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“…Tests were conducted in triplicate, and the samples were masked to leave an exposed surface area of 3 cm 2 to evaluate the real hydrogen generation captured by an inversed burette. Hydrogen evolution was monitored every 24 h, while the solution was refreshed every 24 h to simulate the renewal of the human body medium [ 59 ]. Figure 8 indicates the experimental setup used to collect the H 2 gas produced via the corrosion process.…”

Section: Resultsmentioning

confidence: 99%

Biodegradable Magnesium Alloys for Personalised Temporary Implants

Hendea

Răducanu

Claver

et al. 2023

JFB

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The objective of this experimental work was to examine and characterise the route for obtaining demonstrative temporary biodegradable personalised implants from the Mg alloy Mg-10Zn-0.5Zr-0.8Ca (wt.%). This studied Mg alloy was obtained in its powder state using the mechanical alloying method, with shape and size characteristics suitable for ensuing 3D additive manufacturing using the SLM (selective laser melting) procedure. The SLM procedure was applied to various processing parameters. All obtained samples were characterised microstructurally (using XRD—X-ray diffraction, and SEM—scanning electron microscopy); mechanically, by applying a compression test; and, finally, from a corrosion resistance viewpoint. Using the optimal test processing parameters, a few demonstrative temporary implants of small dimensions were made via the SLM method. Our conclusion is that mechanical alloying combined with SLM processing has good potential to manage 3D additive manufacturing for personalised temporary biodegradable implants of magnesium alloys. The compression tests show results closer to those of human bones compared to other potential metallic alloys. The applied corrosion test shows result comparable with that of the commercial magnesium alloy ZK60.

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Section: Resultsmentioning

confidence: 99%

Biodegradable Magnesium Alloys for Personalised Temporary Implants

Hendea

Răducanu

Claver

et al. 2023

JFB

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“…Additionally, YSZ, a stabilized form of ZrO 2 with yttrium oxide as the stabilizing agent, offers exceptional hardness and resistance to thermal and mechanical stresses. Incorporating YSZ particles into PEO coatings imparts improved wear resistance and thermal stability [200]. This is particularly advantageous in applications where implants may experience varying temperatures and mechanical loads.…”

Section: Wear Performance Of Peo Coatings With Particle Incorporationmentioning

confidence: 99%

Unveiling the Effect of Particle Incorporation in PEO Coatings on the Corrosion and Wear Performance of Magnesium Implants

Almajidi,

Ali,

Jameel

et al. 2023

Lubricants

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Magnesium has been a focal point of significant exploration in the biomedical engineering domain for many years due to its exceptional attributes, encompassing impressive specific strength, low density, excellent damping abilities, biodegradability, and the sought-after quality of biocompatibility. The primary drawback associated with magnesium-based implants is their susceptibility to corrosion and wear in physiological environments, which represents a significant limitation. Research findings have established that plasma electrolytic oxidation (PEO) induces substantial modifications in the surface characteristics and corrosion behavior of magnesium and its alloy counterparts. By subjecting the surface to high voltages, a porous ceramic coating is formed, resulting in not only altered surface properties and corrosion resistance, but also enhanced wear resistance. However, a drawback of the PEO process is that excessive pore formation and porosity within the shell could potentially undermine the coating’s corrosion and wear resistances. Altering the electrolyte conditions by introducing micro- and nano-particles can serve as a valuable approach to decrease coating porosity and enhance their ultimate characteristics. This paper evaluates the particle adhesion, composition, corrosion, and wear performances of particle-incorporated coatings applied to magnesium alloys through the PEO method.

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“…J. da Silva Rodrigues et al ( 2021) [12] studied the anti-corrosion and tribological properties of ZK30 magnesium alloys coated by plasma electrolytic oxidation. The electrolyte used in their experiments was a mixture of 17.5 g/L sodium metasilicate, 4 g/L potassium hydroxide and 3 g/L sodium borate.…”

Section: Plasma Electrolytic Oxidation Of Mg and Its Alloys For Bio-m...mentioning

confidence: 99%

Overview on plasma electrolytic oxidation of magnesium alloys for medical and engineering applications

Patrascu

Ducu²,

Negrea³

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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The scope of this review article is to offer a general view of the recent advances in the plasma electrolytic oxidation of Mg and Mg alloys with emphasis of the Plasma Electrolytic Oxidation (PEO) processing parameters used to obtain key surface properties for medical and engineering applications. The paper presents the different dependencies of the PEO process, first of all depending on the composition of the substrate, the electrolyte used, the applied electrical regime, as well as the way of their interaction, with direct implications on the properties designed to satisfy concrete applications for magnesium alloys. Magnesium-deformable alloys are of particular interest for the manufacture of parts for the for medical and engineering applications and industry due to the possibility of obtaining a more homogeneous structure and better mechanical properties, compared to cast parts. Also, magnesium alloys find its place to a broad range of aerospace, electronics, commercial and sport-related applications. In general, the interactions of the substrate / electrolyte combination with the electrical regime are complex and still the subject of ample research. Because, unlike other electrolytic surface treatment methods, PEO results in the formation of high-strength ohmic layers, they affect, especially in the case of current-controlled regimes, the extent to which the predefined electrical pulse is projected correctly in the setting experimental data.

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Corrosion resistance and tribological behavior of ZK30 magnesium alloy coated by plasma electrolytic oxidation

Cited by 33 publications

References 52 publications

Biodegradable Magnesium Alloys for Personalised Temporary Implants

Biodegradable Magnesium Alloys for Personalised Temporary Implants

Unveiling the Effect of Particle Incorporation in PEO Coatings on the Corrosion and Wear Performance of Magnesium Implants

Overview on plasma electrolytic oxidation of magnesium alloys for medical and engineering applications

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