A review of the electroforming of iron and iron-nickel alloy

Harty, S.F.; McGeough, J. A.; Tulloch, Ross

doi:10.1016/0376-4583(81)90135-7

Cited by 18 publications

(14 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The application of electroformed metal for medical devices is still limited, probably due to brittleness, presence of impurities and internal stress, which are produced during the electroforming process. For this reason, there are only several metals that are commercially produced by electroforming such as copper, nickel and iron [6]. Only electroformed iron has been thoroughly explored for the fabrication of cardiovascular stents.…”

Section: Degradation and Layer Disintegrationmentioning

confidence: 99%

See 1 more Smart Citation

Electroforming as a New Method for Fabricating Degradable Pure Iron Stent

Purnama

Mostavan

Paternoster

2015

Springer Series in Biomaterials Science and Engineering

View full text Add to dashboard Cite

The first example of a documented electroforming process dates back to 1837 when a layer of electrodeposited copper was found on the surface of a printing plate. Since then, it became a basic manufacturing process to produce delicate metallic components such as nickel thin foils for solar panels, perforated screenprinting cylinders used for fabric and carpet printings, digital recording devices, etc. Recently, electroforming is used for the fabrication of iron-based materials designed for cardiovascular stents. Electroformed iron shows a higher corrosion rate in simulated biological environment; this behaviour is supposed to be influenced by its microstructure which is finer than that of iron produced with traditional techniques. A high corrosion rate can be beneficial for cardiovascular stent applications: a complete stent dissolution in 12-18 months can effectively prevent both late thrombosis and further treatment of paediatric patients, usually requiring a continuous vessel remodelling. Faster corrosion rate of iron-based material is advantageous for cardiovascular stent application in order to avoid late stent thrombosis and arterial growth mismatch in young patients leading to a secondary revascularization procedure. Electroformed iron has mechanical properties comparable to those of stainless steel (stent reference metal) with the advantage of the total dissolution of the material after the accomplishment of its function: for this reason, this metal can be considered as a valid alternative to magnesium-based materials. Nevertheless, electroforming is influenced by parameters such as electrolyte bath composition, current density, pH, temperature, additives, cathode, etc. that have a significant effect on the structure of the produced materials.

show abstract

Section: Degradation and Layer Disintegrationmentioning

confidence: 99%

“…The music recording industry uses electroforming in the process of CD making. The patterns on the above-mentioned final products all come from electroformed masters [2,6].…”

Section: Industrial Applicationsmentioning

confidence: 99%

Electroforming as a New Method for Fabricating Degradable Pure Iron Stent

Purnama

Mostavan

Paternoster

2015

Springer Series in Biomaterials Science and Engineering

View full text Add to dashboard Cite

show abstract

“…The presence of Fe(III), however, causes deposits to be harder, less ductile, and more highly stressed than those from well-reduced baths. From the bath with concentration ratio of Fe(III) to Fe(II) below 0.09, a deposit with good quality is produced [21]. The internal stress increases with the increase in the current density or with the decrease in the Fe(BF 4 ) 2 : 226 g L À1 pH 2-3, 2-10 A dm À2 , 55-60 C NaCl: 10 g L À1 bath temperature.…”

Section: Ferrous Chloride Bathmentioning

confidence: 99%

Electrodeposition of Iron and Iron Alloys

Izaki

2010

Modern Electroplating

View full text Add to dashboard Cite

“…Chloride [3][4][5][6], sulfate [5,7], fluorborate [8,9], and sulphamate [10][11][12] baths have been explored and reported in order to achieve electrodeposition of the Fe-Ni alloys. However, there are some shortcomings associated with these baths.…”

Section: Introductionmentioning

confidence: 99%

“…However, there are some shortcomings associated with these baths. In the chloride bath, a high temperature, above 85 • C, was applied to obtain ductile foils [3], which will result in massive evaporation of corrosive hydrochloric acid. It is difficult to carry out at a high current density (usually at a high deposition rate) in the sulfate bath.…”

Section: Introductionmentioning

confidence: 99%

Rapid Electrodeposition of Fe–Ni Alloy Foils from Chloride Baths Containing Trivalent Iron Ions

Zhao

Tian

et al. 2019

Coatings

View full text Add to dashboard Cite

This work presents the rapid electrodeposition of Fe-Ni alloy foils from chloride baths containing trivalent iron ions at a low pH (<0.0). The effect of the concentration of Ni 2+ ions on the content, surface morphology, crystal structure, and tensile property of Fe-Ni alloys is studied in detail. The results show that the co-deposition of Fe and Ni is controlled by the adsorption of divalent nickel species at low current density and the ionic diffusion at high current density. The current density of preparing smooth and flexible Fe-Ni alloy foils is increased by increasing the concentration of Ni 2+ ions, consequently the deposition rate of Fe-Ni alloy foils is increased. For example, at 0.6 M Ni 2+ ions, the current density can be applied at 50 A·dm −2 , along with a high deposition rate of~288 µm·h −1 .

show abstract

A review of the electroforming of iron and iron-nickel alloy

Cited by 18 publications

References 14 publications

Electroforming as a New Method for Fabricating Degradable Pure Iron Stent

Electroforming as a New Method for Fabricating Degradable Pure Iron Stent

Electrodeposition of Iron and Iron Alloys

Rapid Electrodeposition of Fe–Ni Alloy Foils from Chloride Baths Containing Trivalent Iron Ions

Contact Info

Product

Resources

About