The relationship of the magnetomechanical damping to the magnetic properties and electrical resistance of damping iron alloys is investigated. The dependence of the magnetomechanical damping and the squared frequency of mechanical vibrations on the strength of the variable magnetic field is analyzed.Magnetomechanical damping in a ferromagnetic material is caused by mechanical, magnetic, and electrical processes that in turn depend on its structure [ 1,2]. In this connection it is of interest to determine the relationship between the magnetomechanical damping and the magnetic and electrical properties of alloys. We studied iron (with a purity of 99.8%) and its alloys with a ferritic structure and different alloying systems, namely, Fe-(3.0-19.6)% Cr-(0.5 -6)% AI, Fe-(4.8-10.8)% Cr-(0.7-6.5)% V, Fe-49% Co-1.8% V, and Fe -35% Co -0.5% Cr. The alloys were melted in an induction furnace from pure mixture components and then forged into rods 10 -45 mm in diameter. Specimens cut from the rods were annealed at 830 -1150~The method for determining the magnetomechanical damping is described in [3]. The magnetomechanical damping was characterized by the maximum value of the logarithmic decrement ~5 (minus the nonmagnetic component) on its amplitude dependence. In this case the vibration frequency f corresponds to the amplitude of the fluctuations of this maximum.The magnetic properties were determined on specimens of two types, namely, (1) 4 mm in diameter and 40 mm long and (2) with an external diameter of 40 mm, an internal diameter of 30 mm and a length of 30 mm. The coercive force He was evaluated by the null method for specimens of both types. The error of measurement was at most + 0.06 A/m. The magnetic induction B was measured on a BU-3 installation with an accuracy no worse than 0.01 T for specimens of I
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