INFLUENCE OF THE MAGNETIC FIELD WITH AN INDUCTION OF 0.4 TL ON THE PLASTIC PROPERTIES OF C2 LEAD

Abstract

The paper studies the dynamics of deformation characteristics of technically pure C2 lead under the influence of a constant magnetic field with magnetic induction of 0.4 T. Mechanical creep tests were performed, the microhardness of lead samples was measured in the initial state (without the influence of a magnetic field) and under the influence of external magnetic field. Based on the experimental results, creep deformation curves and the dependence of microhardness on the exposure time in a magnetic field are constructed. The stages of creep are determined. A linear stage was identified, at the site of which the creep rate of lead was calculated before and after the application of an external magnetic field. Quantitative changes in the studied characteristics were established. Under the influence of the magnetic field, there was a significant decrease in the creep rate. The relative residual elongation of samples destroyed during creep under the influence of a magnetic field decreased. The initial effect of the influence of a magnetic field with an induction of 0.4 T on the lead microhardness is investigated: the microhardness of the studied samples increases. An increase in the holding time in the magnetic field does not lead to significant changes in the lead microhardness. The maximum magnification is achieved after holding in the magnetic field for 1 hour. The correlation of changes in the creep rate and changes in the microhardness of the material exposed to a magnetic field with magnetic induction of 0.4 T was revealed.