Microstructural properties of electrochemically prepared Ni-Fe-W powders

► Electrodeposition Ni-Fe-W powder from ammonium citrate electrolyte (500-1000 mA cm−2). ► Powder contains amorphous matrix and embedded nanocrystals 3.4 nm. ► Chemical composition Ni-24%Fe-11%W do not depend upon current density and electrolyte temperature. ► Two particle shapes: large cauliflower-like particles and small dendrite particles. ► Smaller powder particles are formed at higher temperatures and at higher current densities.