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Iron-Nickel alloys are of great commercial interest as a result of their soft magnetic and thermal
expansion properties. A proprietary, high efficiency electrodeposition process has been developed to produce the
full range of Fe-Ni alloys (Ni: 0-100%) as fully dense freestanding nanocrystalline material, with average grain
sizes in the range of 10-15 nm. The Fe-Ni alloys can be produced in the form of either net shape components or
continuous foil (5-250 µm thickness). In this presentation, the physical properties of the nanocrystalline Fe-Ni
alloys will be presented and compared with their conventional counterparts to demonstrate performance
improvement obtained through extreme grain refinement. Properties that will be addressed include: hardness,
ductility, thermal expansion, ferromagnetism (maximum induction, permeability, coercivity), electrical
resistivity and thermal stability. Potential industrial/commercial applications for these nanocrystalline Fe-Ni
alloys will be discussed, with particular emphasis on emerging applications in the electronics industry and in
magnetic shielding and power generation/transmission.
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