Biodegradable zinc-iron alloys: Complex study of corrosion behavior, mechanical properties and hemocompatibility

Králová, Zuzana Orságová; Gorejová, Radka; Oriňáková, Renáta; Petráková, Martina; Oriňák, Andrej; Kupková, Miriam; Hrubovčáková, Monika; Sopčák, Tibor; Baláž, Matěj; Maskaľová, Iveta; Kovalčíková, Alexandra; Kováľ, Karol

doi:10.1016/j.pnsc.2021.01.002

Cited by 17 publications

(20 citation statements)

References 33 publications

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“…Electrochemical behavior of the mixed Fe-Zn sample resembled the behavior of pure zinc which can be attributed to the effect of cathodic protection of iron by zinc where zinc acted as a sacrificial anode [52]. In the case of sintered samples, where 1 to 5 wt% of iron was added to the zinc sample, this effect was not observed due to the creation of different Fe-Zn phases which enhanced the corrosion rates of the studied material [25].…”

Section: Discussionmentioning

confidence: 84%

“…Several papers studied iron composite materials or alloys with the addition of manganese, tungsten, palladium, silver or carbon nanotubes (CNT), for example [22][23][24]. However, only several papers deal with the absorbable Fe-Zn materials [25][26][27][28] even though both these elements are biocompatible and have a great potential in the field of biodegradable metals.…”

Section: Introductionmentioning

confidence: 99%

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Corrosion Behavior of Zn, Fe and Fe-Zn Powder Materials Prepared via Uniaxial Compression

et al. 2021

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Powder metallurgy is one of the most prevalent ways for metallic degradable materials preparation. Knowledge of the properties of initial powders used during this procedure is therefore of great importance. Two different metals, iron and zinc, were selected and studied in this paper due to their promising properties in the field of biodegradable implants. Raw powders were studied using scanning electron microscopy (SEM) coupled with energy dispersive spectrometry (EDX). Powders (Fe, Zn and Fe-Zn in a weight ratio of 1:1) were then compressed at the pressure of 545 MPa to the form of pellets with a diameter of 1.7 cm. Surface morphology and degradation behavior in the Hanks´ solution were studied and evaluated. Electrochemical polarization tests along with the static immersion tests carried out for 21 days were employed for corrosion behavior characterization. The highest corrosion rate was observed for pure Zn powder followed by the Fe-Zn and Fe, respectively. A mixed Fe-Zn sample showed similar properties as pure zinc with no signs of iron degradation after 21 days due to the effect of galvanic protection secured by the zinc acting as a sacrificial anode.

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Section: Discussionmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Corrosion Behavior of Zn, Fe and Fe-Zn Powder Materials Prepared via Uniaxial Compression

et al. 2021

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“…5% is the value specified by the standard [ 61 ]. Usually, for the hemocompatibility tests, either human blood is taken from volunteers or animal blood, e.g., rabbit or sheep blood, is used [ 51 , 62 , 63 , 64 , 65 , 66 ].…”

Section: Biological Properties Of Iron-based Materialsmentioning

confidence: 99%

Biodegradable Iron-Based Materials—What Was Done and What More Can Be Done?

2021

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Iron, while attracting less attention than magnesium and zinc, is still one of the best candidates for biodegradable metal stents thanks its biocompatibility, great elastic moduli and high strength. Due to the low corrosion rate, and thus slow biodegradation, iron stents have still not been put into use. While these problems have still not been fully resolved, many studies have been published that propose different approaches to the issues. This brief overview report summarises the latest developments in the field of biodegradable iron-based stents and presents some techniques that can accelerate their biocorrosion rate. Basic data related to iron metabolism and its biocompatibility, the mechanism of the corrosion process, as well as a critical look at the rate of degradation of iron-based systems obtained by several different methods are included. All this illustrates as the title says, what was done within the topic of biodegradable iron-based materials and what more can be done.

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“…The purpose of this study is to develop a new GBR membrane to test the properties of basic materials, so as to select samples for subsequent implantation experiments. Base on previous studies [6][7][8][9] and Zn-Fe phase diagrams [10], adding trace Fe to the Zn alloy could improve the properties. In this paper, we detailed investigation on the Zn-0.5Fe (wt%) alloy membrane in its microstructure, mechanical properties, corrosion properties and cytotoxicity.…”

Section: Introductionmentioning

confidence: 91%

“…Powder metallurgy is an effective way in preparing homogeneous alloys with widely different melting points, which the melting points of Zn and Fe are 419.3 °C and 1538 °C respectively. A series of as-sintered Zn-Fe alloys have been prepared by powder metallurgy for scaffold, which Zn-1Fe and Zn-2Fe (wt%) alloys were potential biodegradable implants [8]. However, in the author's knowledge, there is no relevant literature report on Zn-Fe alloy membrane with thickness of 0.1 mm which produced by powder sintering.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characterization of A Zn-0.5Fe alloy membrane by powder metallurgy route for guided bone regeneration

Liu

Chu

et al. 2022

Mater. Res. Express

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A Zn-0.5Fe membrane with a thickness of 0.1 mm was produced by powder sintering and then hot extrusion and hot rolling. The microstructure, mechanical properties, corrosion properties and cytotoxicity of the Zn-0.5Fe membrane were investigated. The Zn-0.5Fe membrane had a finer and uniform microstructure in comparison to as-sintered Zn-0.5Fe and as-extruded Zn-0.5Fe alloys. Among the three alloys, the Zn-0.5Fe membrane exhibited the best mechanical properties, due to the fine grain strengthening, which is caused by the grain refinement and porosity reduction of the Zn-0.5Fe alloy after processing. The corrosion results of the Zn-0.5Fe alloys in Ringer's solution show that the corrosion resistance was improved after hot working because of the decrease of micro-galvanic corrosion caused by intermetallic compound. Furthermore, the cytotoxicity test assessed by MC3T3-E1 subclone 14 cells showed the Zn-0.5Fe membrane had an acceptable biocompatibility. Therefore, the Zn-0.5Fe membrane has great potential for biodegradable guided bone regeneration.

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Biodegradable zinc-iron alloys: Complex study of corrosion behavior, mechanical properties and hemocompatibility

Cited by 17 publications

References 33 publications

Corrosion Behavior of Zn, Fe and Fe-Zn Powder Materials Prepared via Uniaxial Compression

Corrosion Behavior of Zn, Fe and Fe-Zn Powder Materials Prepared via Uniaxial Compression

Biodegradable Iron-Based Materials—What Was Done and What More Can Be Done?

Fabrication and characterization of A Zn-0.5Fe alloy membrane by powder metallurgy route for guided bone regeneration

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