Impact of a Constant Magnetic Field on the Magnetoplastic Effect in V95pch Aluminum Alloy

Abstract

A comprehensive experimental study of the magnetoplastic effect in V95pch aluminum alloy aged in a weak constant magnetic field. Data is obtained on the chemical composition of the V95pch aluminim alloy, the modes of heat and thermomagnetic treatments, and fundamental experimentally observed regularities in changes in the microhardness values, the elasticity modulus of individual local regions, and the phase composition of the aluminum alloy aged at a temperature of 140°C, annealing times from 2 to 8 h, both in the presence of a constant magnetic field with an intensity of 557.0 kA/m and in its absence. The constant magnetic field significantly affects the strength properties and structure of the V95pch aluminum alloy. A negative magnetoplastic effect is identified, with a magnitude of 21%. The constant magnetic field does not have a substantial impact on the average grain size; however, the size and quantity of observed foreign inclusions inside the grain become significantly smaller compared to aging in the absence of a magnetic field. Additionally, exposure to a constant magnetic field during phase formation results in a more distorted structure, where the half-widths of the diffraction lines become broader. A correlation between the measured microhardness and elasticity modulus of the V95pch aluminum alloy is detected.