The influence of zero-to-tension loading on magnetic and acoustic properties of 08G2B hot-rolled steel

The paper reports on the results of studying the effect of the number of zero-to-tension loading cycles, with an amplitude approximately corresponding to conventional yield strength, on the acoustic and magnetic parameters of the 08G2B hot-rolled pipe steel, including its longitudinal and transverse magnetostrictions. The parameters uniquely varying with the number of cycles have been determined, and this principally enables these parameters to be used for the development of nondestructive methods of testing fatigue degradation in the material of structures made of the steel under study.