Some Features in the Behavior of Magnetic and Acoustic Characteristics of Hot-Rolled 08G2B Steel under Cyclic Loading

Resumo

We present the results of studying the effect that cyclic loading in the zero-to-tension scheme with an amplitude approximately corresponding to the conditional yield strength has on the magnetic and acoustic parameters of 08G2B hot-rolled pipe steel, including its longitudinal and transverse magnetostriction. Parameters that monotonously change with increasing the number of loading cycles are determined; this makes it possible in principle to use these parameters to develop nondestructive methods for testing the fatigue degradation of material in structures made of the investigated steel.