Influence of the Constant Magnetic Field on the Density of an Aging Alloy of Beryllium Bronze BrB-2

Abstract

This paper presents the main experimental results of measuring the density of beryllium bronze BrB-2, aged in the constant magnetic field and in its absence, using the hydrostatic weighing method. The temperature and time dependences of the density of beryllium bronze BrB-2 during the decomposition of a supersaturated solid solution in a constant magnetic field of strength 557.2 kA/m were studied at aging temperatures of 250, 300, 350, and 400°C and aging duration from 0 to 1 h, and a comparative analysis of their behavior with the corresponding microhardness dependences was carried out. The correlation was discovered between the temperature and time dependences of the density and microhardness of beryllium bronze BrB-2. For example, at an aging temperature of 350°C a sharp maximum in the density of the alloy is observed, and similarly at the same point the absolute maximum of microhardness is achieved. In addition, it was found that the application of a constant magnetic field to the aging process under all heat treatment modes always leads to an increase in the density and microhardness of beryllium bronze BrB-2 compared to the density of the alloy aged in its absence. A physical interpretation is given to the observed facts and patterns. In the future, it is planned to find a correlating function between two independently measured characteristics, density and microhardness, which is important for solid state physics and materials science from scientific and practical points of view.