Electrodeposition of equiatomic FeNi and FeCo nanowires: Structural and magnetic properties

•Comparison of the anomalous codeposition phenomenon in FeNi and FeCo nanowires.•Homogeneous equiatomic FeCo nanowires were obtained along the nanowires length.•Out of plane magnetization direction was obtained for the FeNi and the FeCo nanowires.•The coercivity (Hc) doesn’t change enough with the annealing treatment for the FeNi nanowires.•An important increase of Hc is observed for FeCo nanowires with the annealing.