Open AccessResults of magnetometry data processing for non-destructive testing of compressive mechanical stress levels in steels
Author(s) -
Е. А. Щапова,
А. Н. Сташков,
А. П. Ничипурук
Publication year - 2018
Publication title -
vestnik koncerna vko «almaz - antej»
Language(s) - English
Resource type - Journals
ISSN - 2542-0542
DOI - 10.38013/2542-0542-2018-1-80-85
Subject(s) - anisotropy , materials science , magnetometer , ultimate tensile strength , stress (linguistics) , magnetization , electromagnetic coil , stress–strain curve , nondestructive testing , compressive strength , structural engineering , composite material , magnetic field , deformation (meteorology) , physics , engineering , electrical engineering , optics , linguistics , philosophy , quantum mechanics
We plotted the fields of measurement coil signal as functions inversely proportional to reversible magnetisation in low-carbon St20 steel plates subjected to plastic tensile strain. Performing an additional approximation of our experimental data using three pseudo-Voigt functions allowed us to detect the information concerning irreversible motion of the 90-degree domain walls that are most sensitive to mechanical stresses. As a result of performing mathematical processing of experimental data we managed to improve validity of estimating the fields of stress-induced magnetic anisotropy and mechanical stresses.