Variation of elastic characteristics of metastable austenite steel under cycling straining

We have analyzed the effect of elastoplastic cyclic straining on anisotropy of elastic properties of 08Kh18N10T metastable austenite steel. The possibility of determining the strain amplitude of the fatigue loading cycle by an acoustic method involving measuring the elastic characteristic of the material has been demonstrated. The resulting experimental dependences that can be used to estimate the number of cycles before failure using ultrasonic measurements have been revealed.