Corrosion Protection of ZK60 Wrought Magnesium Alloys by Micro-Arc Oxidation

Xue, Yuna; Pang, Xin; Karparvarfard, Seyyed Mohamad Hasan; Jahed, Hamid; Luo, Shiming; Shen, Yi

doi:10.3390/met12030449

Cited by 12 publications

(7 citation statements)

References 47 publications

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“…It is observed that the corresponding value for the studied alloy is higher than that of the commercial ZK 60 alloy. For the commercial ZK 60 alloy, the corrosion rate, already reported in other experimental works, is similar to that obtained in this present work [ 65 , 66 , 67 , 68 , 69 , 70 ]. Despite the difference, it can be said that both materials have a similar trend as they are within the same order of magnitude.…”

Section: Resultssupporting

confidence: 92%

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: Resultssupporting

confidence: 92%

Biodegradable Magnesium Alloys for Personalised Temporary Implants

Hendea

Răducanu

Claver

et al. 2023

JFB

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“…A similarity in the corrosion parameters' evolution can be seen for both neutral and acidic pH. If we compare these values with those corresponding to the commercial ZK60 alloy (around 1.45 mm/year [63][64][65][66][67][68]), it can be found that the values obtained here can be considered quite satisfactory.…”

Section: Corrosion Analysis Of the Pbf-lb/m-processed Mg-based Alloysupporting

confidence: 62%

“…However, as a good result noted from these experiments, it should be mentioned and emphasized that at a neutral pH, the corrosion rate of the Mg-10Zn-0.8Ca-0.5Zr alloy (1.426 mm/year) is very close to that of the alloy considered an etalon for comparison with nowadays -ZK 60 (1.45 mm/year) [63][64][65][66][67][68].…”

Section: Corrosion Analysis Of the Pbf-lb/m-processed Mg-based Alloysupporting

confidence: 55%

The Characterization of a Biodegradable Mg Alloy after Powder Bed Fusion with Laser Beam/Metal Processing for Custom Shaped Implants

Raducanu,

Cojocaru,

Nocivin

et al. 2024

Materials

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A new Mg-Zn-Zr-Ca alloy in a powder state, intended to be used for custom shaped implants, was obtained via a mechanical alloying method from pure elemental powder. Further, the obtained powder alloy was processed by a PBF-LB/M (powder bed fusion with laser beam/of metal) procedure to obtain additive manufactured samples for small biodegradable implants. A series of microstructural, mechanical and corrosion analyses were performed. The SEM (scanning electron microscopy) analysis of the powder alloy revealed a good dimensional homogeneity, with a uniform colour, no agglutination and almost rounded particles, suitable for the powder bed fusion procedure. Further, the PBF-LB/M samples revealed a robust and unbreakable morphology, with a suitable porosity (that can reproduce that of cortical bone) and without an undesirable balling effect. The tested Young’s modulus of the PBF-LB/M samples, which was 42 GPa, is close to that of cortical bone, 30 GPa. The corrosion tests that were performed in PBS (Phosphate-buffered saline) solution, with three different pH values, show that the corrosion parameters have a satisfactory evolution comparative to the commercial ZK 60 alloy.

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“…In the MAO process, a stainless steel cylindrical container serves as the cathode and a magnesium alloy functions as the anode. In the early stage of MAO, a thin and dense layer was formed on the surface of the magnesium alloy (Xue et al , 2022). Then porous and microcracks start to present on the former layer, making the MAO coating exhibit a double-layer structure.…”

Section: Corrosion Protection Of Friction Stir-welded Magnesium Alloysmentioning

confidence: 99%

Corrosion and protection of friction stir welding of magnesium alloy

Zhou,

Zheng,

Chen

et al. 2023

ACMM

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Purpose The high specific strength makes magnesium alloys have a wide range of applications in aerospace, military, automotive, marine and construction industries. However, its poor corrosion resistance and weldability have limited its development and application. Friction stir welding (FSW) can effectively avoid the defects of fusion welding. However, the microstructure, mechanical properties and corrosion behavior of FSW joints in magnesium alloys vary among different regions. The purpose of this paper is to review the corrosion of magnesium alloy FSW joints, and to summarize the protection technology of welded joints. Design/methodology/approach The corrosion of magnesium alloy FSW joints includes electrochemical corrosion and stress corrosion. This paper summarizes corrosion protection techniques for magnesium alloys FSW joints, focusing on composition, microstructure changes and surface treatment methods. Findings Currently, this research is mainly focused on enhancing the corrosion resistance of magnesium alloy FSW joints by changing compositions, structural modifications and surface coating technologies. Refinement of the grains can be achieved by adjusting welding process parameters, which in turn minimizes the effects of the second phase on the alloy’s corrosion resistance. Originality/value This paper presents a comprehensive review on the corrosion and protection of magnesium alloys FSW joints, covering the latest research advancements and practical applications. It aims to equip researchers with a better insight into the field and inspire new studies on this topic.

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Corrosion Protection of ZK60 Wrought Magnesium Alloys by Micro-Arc Oxidation

Cited by 12 publications

References 47 publications

Biodegradable Magnesium Alloys for Personalised Temporary Implants

Biodegradable Magnesium Alloys for Personalised Temporary Implants

The Characterization of a Biodegradable Mg Alloy after Powder Bed Fusion with Laser Beam/Metal Processing for Custom Shaped Implants

Corrosion and protection of friction stir welding of magnesium alloy

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