Novel biodegradable Fe-Mn-C-S alloy with superior mechanical and corrosion properties

Hufenbach, J.; Wendrock, H.; Kochta, Fabian; Kühn, U.; Gebert, A.

doi:10.1016/j.matlet.2016.10.037

Cited by 61 publications

(42 citation statements)

References 10 publications

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“…The non‐appearance of the distortions of the alloy dissolution in Tris ‐buffered solutions may be attributed to the demonstrated strong reactive nature of Mn which can counteract the above discussed effect of possible Fe‐complex formation. However, in an earlier study it was shown that also the addition of C to Fe (Fe‐1C) can induce such an effect …”

Section: Resultsmentioning

confidence: 99%

“…Characterisation of the fast solidified Fe‐30Mn‐1C alloy by means of XRD (not shown here) revealed an austenitic phase with Fm ‐3 m structure. Figure summarises a typical SEM image taken from the cross‐sectional area of a rod sample and the corresponding EDX mappings of Fe, Mn and C. A dendritic microstructure is presented which is composed of fine austenitic grains . From the EDX analysis, an enrichment of Mn along the austenite grain boundaries can be derived whereby the core regions of the austenite grains are Fe‐rich relative to the nominal alloy composition.…”

Section: Resultsmentioning

confidence: 99%

“…Recently, it was demonstrated that by fast solidification alloy microstructures can be obtained which yield this superior mechanical performance without additional mechanical or thermal treatment. [21] With view to biodegradability, all these alloys were tested in established simulated body fluids with complex compositions, i.e., a mixture of different salts with main component sodium chloride and a buffer system. Typical examples are commercial and modified Hank's solution or Dulbecco's phosphate-buffered saline (DPBS), [19,22] Dulbecco's modified eagle medium (DMEM) [16] as well as simulated body fluid (SBF) [16] which simulates the inorganic part of human blood plasma.…”

Section: Introductionmentioning

confidence: 99%

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Corrosion studies on Fe‐30Mn‐1C alloy in chloride‐containing solutions with view to biomedical application

Gebert

Kochta

Voß

et al. 2017

Materials & Corrosion

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Austenitic Fe‐30Mn‐1C (FeMnC) is a prospective biodegradable implant material combining high mechanical integrity with adequate corrosion rates. The fast solidified TWIP alloy, its constituents and 316L stainless steel were electrochemically analysed in various electrolytes at 37 °C under laminar flow. Potentiodynamic polarization tests were conducted in Tris‐buffered simulated body fluid (SBF), in Tris‐buffered saline (TBS) and in 150–0.15 mM NaCl solutions (pH 7.6, 10, 5, 2) to study initial corrosion stages. Active dissolution of FeMnC is revealed in all electrolytes and is discussed on basis of the Fe and Mn behaviour plus is compared to that of 316L. The role of Tris (Tris(hydroxymethyl)aminomethane) as organic buffer for SBFs is critically assessed, particularly with view to the sensitivity of Fe. SEM studies of FeMnC corroded in NaCl revealed preferential dissolution along Mn‐rich grain boundary regions. Static immersion tests of FeMnC in SBF with surface and solution analyses (SEM/EDX, XPS, ICP‐OES) indicated that dissolution processes interfere with the formation of permeable surface coatings comprising hydroxides and salts.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Corrosion studies on Fe‐30Mn‐1C alloy in chloride‐containing solutions with view to biomedical application

Gebert

Kochta

Voß

et al. 2017

Materials & Corrosion

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“…Attempting to find a proper Fe-based alloy with suitable degradation rate, some researchers achieved novel Fe alloys such as Fe-Pd [120], Fe-Mn-C-S [121] and Fe-Ga [122] which showed higher corrosion rate compared to pure Fe in vitro. Capek et al [120] stated that the preparation route significantly influenced material properties such as mechanical strength and corrosion rate.…”

Section: Recent Developments Of Bm Wires In Bone Applicationsmentioning

confidence: 99%

Biodegradable Metallic Wires in Dental and Orthopedic Applications: A Review

Asgari

Hang

Chang

et al. 2018

Metals

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Abstract:Owing to significant advantages of bioactivity and biodegradability, biodegradable metallic materials such as magnesium, iron, and zinc and their alloys have been widely studied over recent years. Metallic wires with superior tensile strength and proper ductility can be fabricated by a traditional metalworking process (drawing). Drawn biodegradable metallic wires are popular biodegradable materials, which are promising in different clinical applications such as orthopedic fixation, surgical staples, cardiovascular stents, and aneurysm occlusion. This paper presents recent advances associated with the application of biodegradable metallic wires used in dental and orthopedic fields. Furthermore, the effects of some parameters such as the surface modification, alloying elements, and fabrication process affecting the degradation rate as well as biocompatibility, bioactivity, and mechanical stability are reviewed in the most recent works pertaining to these materials. Finally, possible pathways for future studies regarding the production of more efficient biodegradable metallic wires in the regeneration of bone defects are also proposed.

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“…The effect of adding Ca and Mg was assessed by the potentiodynamic polarization test where the results showed an increased corrosion current density related to the amount of Ca and Mg present in the solid solution [18,19]. The corrosion current density (j corr ) is representative of the degradation degree of the alloy.…”

Section: Surface Electrochemical Characterizationmentioning

confidence: 99%

Electrochemical Behavior of Biodegradable FeMnSi–MgCa Alloy

Cimpoeşu

Săndulache

Istrate

et al. 2018

Metals

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Nowadays, alongside metallic biomaterials, there is increasing interest in using degradable metals in an appreciable number of medical applications. There are new kinds of metallic biomaterials for medical applications and many new findings have been reported over the past few years. Iron-based materials are a solution for biodegradable applications based on their mechanical and chemical properties. In order to control the corrosion rate of the Fe10Mn6Si alloy, we proposed the use of two additional elements, Ca and Mg, as corrosion promoters. The new material was obtained in an air-controlled atmosphere furnace after five melting operations. The material was in vitro analyzed from a corrosion resistance point of view. The experiments were realized by immersion (7, 14, and 30 days) in simulated body fluid (SBF) solution at 37 • C and a constant pH, and by electrochemical tests (electrochemical impedance spectroscopy (EIS), linear polarization (LP), cyclic polarization (CP)). Material surfaces before and after corrosion tests were analyzed through scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and X-ray diffraction (XRD) techniques. A discussion on the degradation rate of the material was realized from a comparison of the results. The results presented good composition homogeneity after the re-melting stages, with low percentages of Ca and Mg in the material, but with an adequate spread in the alloy.

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Novel biodegradable Fe-Mn-C-S alloy with superior mechanical and corrosion properties

Cited by 61 publications

References 10 publications

Corrosion studies on Fe‐30Mn‐1C alloy in chloride‐containing solutions with view to biomedical application

Corrosion studies on Fe‐30Mn‐1C alloy in chloride‐containing solutions with view to biomedical application

Biodegradable Metallic Wires in Dental and Orthopedic Applications: A Review

Electrochemical Behavior of Biodegradable FeMnSi–MgCa Alloy

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