Fatigue Testing Method for Thin Wires

Within the framework of this work, a new method for tensile fatigue testing of thin microwires and wires has been developed in accordance with GOST 25.502-79. The developed method has been tested on amorphous microwires of composition Fe 77.5 Si 7.5 B 15 in glass insulation. It has been established that the deformation mode in the stress range from 0 to 700 MPa corresponds to the long-term use of the studied microwires (millions of cycles). In addition, the studied microwires are capable of withstanding hundreds of thousands of tensile cycles at stresses from 700 to 1100 MPa.