Abstract
The electrodeposition, structure, and properties of Fe–W alloys are studied. Working current densitiesirange from 1 to 5 A dm–2at 50°C. The W content (45 wt %) barely depends oni. The current efficiency is about 40%. Alloys obtained at ibelow 2 A dm–2are crystalline oversaturated solid solutions of W in Fe and are magnetic. Higher current densities yield amorphous nonmagnetic alloys of the same composition. Either alloy has a very high resistivity (nearly 300 μohm cm) and, after a treatment at 500–600°C, transforms into a more equilibrium binary system comprising a saturated solid solution and an intermetallic compound.
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