GAMMA TO ALPHA-PHASE TRANSFORMATION IN FECOV ALLOYS

The effects of filing FeCoV alloys with equiatomic FeCo and up to 14 a t% V is studied by Mossbauer spectroscopy and X-ray diffraction. We ob served that filing eliminates the paramagnetic component observed in s amples in the form of plates. The filed material also presents a linea r increase of the lattice parameter and a linear decrease of the avera ge hyperfine field of the alpha phase due to extra low-field satellite s with increasing vanadium contents. This indicates that filing produc es a gamma to alpha phase transformation, which increases the amount o f vanadium in solid solution in the FeCo alpha phase.