Corrosion properties of bioresorbable FeMn‐Ag alloys prepared by selective laser melting

Wiesener, Markus; Peters, K.; Taube, Alexander L.; Keller, Adrian; Hoyer, Kay-Peter; Niendorf, Т.; Grundmeier, Guido

doi:10.1002/maco.201709478

Cited by 39 publications

(41 citation statements)

References 31 publications

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“…Liu et al [15] developed a Fe-30Mn-1Ag alloy using a rapid solidification technique and found that the alloy corroded faster in simulated body fluid due to the microgalvanic effect of the Ag-rich particles with the Fe-Mn matrix. Similar microgalvanic effect of silver addition to accelerating corrosion was observed by Wiesner et al [16] on Fe-Mn-Ag alloys prepared by selective laser melting from mixed powders of Fe-Mn and Ag. However, at longer immersion period, they observed the formation of oxide/phosphate-based corrosion layer that inhibited the microgalvanic effect to…”

Section: Introductionsupporting

confidence: 81%

Design and characterization of nano and bimodal structured biodegradable Fe-Mn-Ag alloy with accelerated corrosion rate

Bagha

Khakbiz

Sheibani

et al. 2018

Journal of Alloys and Compounds

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Researchers in biodegradable metals have been putting efforts to accelerate the corrosion of ironbased biodegradable metals. These include by alloying iron with manganese and noble elements such as silver, but further increase to the corrosion rate is still needed. In this study, a set of bimodal nano/microstructured Fe-30Mn-1Ag alloys was prepared through mechanical alloying and spark plasma sintering. The alloys were characterized and tested for their corrosion behavior in Hanks' solution at 37 o C and for their mechanical properties. The bimodal-structured alloy possessed a mixture of austenitic (γ-FeMn) and ferritic (α-Fe) phases, while the nano-and macro-structured ones were essentially composed of γ-FeMn and α-Fe phases, respectively. Addition of 1-3 wt.% of silver into the nanostructured alloy increased its corrosion rate from 0.24 mm/year to 0.33 and 0.58 mm/year for Fe-30Mn-1Ag and Fe-30Mn-3Ag, respectively. Whilst, the bimodal Fe-30Mn-1Ag alloy corroded at a higher rate of 0.88 mm/year. This alloy also possessed an interesting combination of high and low micro-hardness phases that contributed to high shear strength of 417 MPa and shear strain of 0.66. Detailed discussion on the relationship of microstructure with corrosion behavior and mechanical properties is presented in this manuscript.

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Section: Introductionsupporting

confidence: 81%

Design and characterization of nano and bimodal structured biodegradable Fe-Mn-Ag alloy with accelerated corrosion rate

Bagha

Khakbiz

Sheibani

et al. 2018

Journal of Alloys and Compounds

View full text Add to dashboard Cite

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“…The tabulation of such studies are presented in Table 4. 61,64,[73][74][75][76][77]80,[82][83]86,[95][96][97][98][99][100][101][102][103][104] Environments containing chloride ions are well known to be detrimental to the durability of stainless steels, with a number of studies tabulated above appropriately focusing on such electrolytes. 105 In a study by Ganesh, et al, 95 two batches of specimens (termed "A" and "B") were produced via DLD, by utilizing similar parameters to produce Type 316L specimens.…”

Section: Ferrous Alloysmentioning

confidence: 99%

“…The corrosion of SLM FeMn-Ag was investigated by Wiesener, et al, 104 in SBF. The interaction of Ag precipitates and FeMn matrix created a galvanic couple in the early stages of immersion in SBF.…”

Section: Crackmentioning

confidence: 99%

Corrosion of Additively Manufactured Alloys: A Review

et al. 2018

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Additive manufacturing (AM), often termed 3D printing, has recently emerged as a mainstream means of producing metallic components from a variety of metallic alloys. The numerous benefits of AM include net shape manufacturing, efficient use of material, suitability to low volume production runs, and the ability to explore alloy compositions not previously accessible to conventional casting. The process of AM, which is nominally performed using laser (or electron) based local melting, has a definitive role in the resultant alloy microstructure. Herein, the corrosion of alloys prepared by AM using laser and electronbased methods, relating the corrosion performance to the microstructural features influenced by AM processing, are reviewed. Such features include unique porosity, grain structures, dislocation networks, residual stress, solute segregation, and surface roughness. Correlations between reported results and deficiencies in present understanding are highlighted.

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“…[304] Lately, the focus shifted from the predominantly investigated Ti6Al4V alloy toward alternative titanium based alloys, such as TiTa or TiTaZr, which have an advantage regarding their Young's modulus, which is much lower and thus, reduces stressshielding effects. [305,306] An overview about important investigations of the utilization of AM in the medical sector is provided in Table 32. Recent studies showcased their successful fabrication via AM, in particular pure magnesium and FeMnAg.…”

Section: Am In the Medical Sectormentioning

confidence: 99%

A Review of Metal Fabricated with Laser‐ and Powder‐Bed Based Additive Manufacturing Techniques: Process, Nomenclature, Materials, Achievable Properties, and its Utilization in the Medical Sector

et al. 2018

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Additive manufacturing has multiple advantages over conventional fabrication techniques, such as the geometrical freedom and, to a great extent, the omission of tooling equipment. Hence, futuristic designs and non-standard topology-optimized structures can be fabricated without causing noteworthy extra cost, since the geometrical complexity is, exaggeratedly spoken, for free. The manufacturing time and the amount of required raw material are the key criteria, which determine the expenses. What at first glance appears as an engineer's dream, introduces its complexity in the description of the material's characteristics and their volatility to the manufacturing conditions. Within this study, the main properties (i.e., surface hardness, tensile, and compression strength, as well as fracture toughness) and their anisotropic and inhomogeneous nature are addressed. Detailed overviews of the progress to date for aluminum, iron, titanium, cobalt, and nickel based raw materials are provided. Furthermore, an overview about the state-of-the-art in the medical sector is included, comprising the areas of utilization and several trail studies.

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Corrosion properties of bioresorbable FeMn‐Ag alloys prepared by selective laser melting

Cited by 39 publications

References 31 publications

Design and characterization of nano and bimodal structured biodegradable Fe-Mn-Ag alloy with accelerated corrosion rate

Design and characterization of nano and bimodal structured biodegradable Fe-Mn-Ag alloy with accelerated corrosion rate

Corrosion of Additively Manufactured Alloys: A Review

A Review of Metal Fabricated with Laser‐ and Powder‐Bed Based Additive Manufacturing Techniques: Process, Nomenclature, Materials, Achievable Properties, and its Utilization in the Medical Sector

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