Possibilities of application of the magnetoelastic effect for stress assessment in construction elements made of steel considering Rayleigh region

Abstract

This paper presents the results of investigation of X30Cr13 construction steel in a wide range of magnetizing fields from the Rayleigh region to the near-saturation region. The measurement system with hydraulic press as a source of external tensile stress is described as well as investigated samples of the X30Cr13 steel. Obtained results are presented in the paper separately for Rayleigh region and for higher magnetizing fields. Occurrence of the Villari effect is confirmed for entire range of magnetizing filed applied during the investigation. On the basis of obtained results, conclusion about possible application of the results in the stress assessment in constructional steel was formulated, which is included in the last section of the paper.