Microstructure and corrosion study of porous Mg–Zn–Ca alloy in simulated body fluid

Annur, Dhyah; Erryani, Aprilia; Lestari, Franciska Pramuji; Putrayasa, I Nyoman Gede; Gede, P A; Kartika, Ika

doi:10.1088/2053-1591/aa65fd

Cited by 15 publications

(6 citation statements)

References 24 publications

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“…Related to magnesium as biodegradable implant, porous or nonporous structure will have different properties in mechanical or in vitro properties. Mechanical properties and corrosion properties can be modified by varying space holder or foaming agent (including the composition) used in the process and also the different preparation of powder metallurgy (compacting pressure, sintering temperature and holding time) [10][11][12]. As an implant material, magnesium alloys is expected to have similar mechanical properties to human bone (Modulus 3-20 GPa; compression strength: 2-180 MPa) [12].…”

Section: Introductionmentioning

confidence: 99%

Study of sintering on Mg-Zn-Ca alloy system

Annur¹,

Lestari²,

Erryani³

et al. 2018

AIP Conference Proceedings

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Abstract.Magnesium and its alloy have gained a lot of interest to be used in biomedical application due to its biodegradable and biocompatible properties. In this study, sintering process in powder metallurgy was chosen to fabricatenonporous Mg-6Zn-1Ca (in wt%) alloy and porous Mg-6Zn-1Ca-10Carbamide alloy. For creating porous alloy, carbamide (CO(NH ) was added to alloy system as the space holder to create porous structure material. Effect of the space holder addition and sintering temperature on porosity, phase formation, mechanical properties, and corrosion properties was observed.Sintering process was done in a tube furnace under Argon atmosphere in for 5 hours. The heat treatment was done in two steps; heated up at 250 ºC for 4 hours to decompose spacer particle, followed by heated up at 580 ºC or 630 ºC for 5 hours. The porous structure of the resulted alloys was examined using Scanning Electron Microscope (SEM), while the phase formation was characterized by X-ray diffraction (XRD)analysis. Mechanical properties were examined using compression testing. From this study, increasing sintering temperature up to 630 ºC reduced the mechanical properties of Mg-Zn-Ca alloy.

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Section: Introductionmentioning

confidence: 99%

Study of sintering on Mg-Zn-Ca alloy system

Annur¹,

Lestari²,

Erryani³

et al. 2018

AIP Conference Proceedings

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“…The corrosion reactions of magnesium-based alloys in the SBF solution are given by the following reactions [57][58][59][60]:…”

Section: Mechanism Of Corrosion Degradation For Turmericcoated Sample...mentioning

confidence: 99%

Evaluation of corrosion behaviour of turmeric-coated AZ51 alloy in simulated body fluid for biomedical applications

Das

Yadav

Kundu

et al. 2022

Corrosion Engineering, Science and Technology

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In this study, the corrosion behavior of turmeric-coated AZ51 alloy is studied in a simulated bodily fluid (SBF) and then correlated using different characterization techniques. Optical microstructures of all the samples reveal the presence of grains of the α-Mg alloy and precipitates of β-Mg17Al12. Two well-defined peaks were obtained from the XRD patterns -Mg and Mg17Al12, correlating with the optical microscopy results. The potentiodynamic polarisation investigation illustrates the corrosion behavior of uncoated (UC) and turmeric-coated magnesium samples dipped for 24 (DC-24), 48 (DC-48), and 96 hours (DC-96). Results confirmed that the DC-48 sample shows the maximum corrosion resistance among all the samples, and the EIS study correlates well with the study. The mineralization study confirms that the DC-48 sample has the maximum corrosion resistance due to the uniformity and compact nature of the coating.

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“…It has been known that the corrosion of Mg-based implants led to an increase in alkalinity and the release of H 2 gas [10] due to its swift corrosion rate. Many attempts have been performed to resist its rapid corrosion encompassing alloying [11][12][13][14], porosity controls [15,16], composite making [17] and surface modifications [18][19][20]. Song [21] showed that H 2 release rate of 0.01 ml cm −2 day −1 is harmless and tolerable by the body.…”

Section: Mg Corrosion Behaviourmentioning

confidence: 99%

Corrosion of porous Mg and Fe scaffolds: a review of mechanical and biocompatibility responses

Yusop

Alsakkaf

Kadir

et al. 2021

Corrosion Engineering, Science and Technology

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Absorbable metals have been proposed as potential materials for hard tissue scaffolding to offer both high mechanical support and bioabsorbability. Over the past 5 years, many works sought evidence of the interesting mechanical property which mimics to that of human bone with tailored corrosion behaviour. The emerging additive manufacturing (AM) technology helps to optimise the design and production of topological porous absorbable metals suited for bone scaffolds. Since the studies on the porous absorbable metals are on the rise, we provide a current state-of-the-art of corrosion performances for porous Mg-based and Fe-based scaffolds including recent developments and the remaining challenges. A detailed discussion on the impacts of advanced AM and recently developed dynamic-flow corrosion on their in vitro corrosion, mechanical strengths and biocompatibility are also provided. This review also analyses the suitability of both metals to be used for bone substitute materials.

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Microstructure and corrosion study of porous Mg–Zn–Ca alloy in simulated body fluid

Cited by 15 publications

References 24 publications

Study of sintering on Mg-Zn-Ca alloy system

Study of sintering on Mg-Zn-Ca alloy system

Evaluation of corrosion behaviour of turmeric-coated AZ51 alloy in simulated body fluid for biomedical applications

Corrosion of porous Mg and Fe scaffolds: a review of mechanical and biocompatibility responses

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