DOI 10.17586/0021-3454-2017-60-7-679-684
UDC 621.791.75: 620.172.2: 620.179.17
STUDY OF ACOUSTO-ELASTIC PROPERTIES OF THIN WIRES
Kalashnikov Izhevsk State Technical University, Department of Quality Control Instruments and Techniques; Professor, Head of the Department
A. V. Platunov
Kalashnikov Izhevsk State Technical University, Examination Center for Non-destructive Testing;
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Abstract. Results of studies on measurement of speed and amplitude of rod waves in thin wires, using developed instrument and a setup, are presented. Measured values of velocities, elastic moduli, and acousto-elastic coefficients in speed and amplitude are obtained for ferromagnetic wires with a diameter of 0.3—0.5 mm of steel 65G, U9A and alloy 52K12F. The studies were conducted in the uniaxial stressstrain state of the wire at loads from 0 to 1100 MPa; samples of wires were subjected to annealing at a temperature of from 200 to 1200 °C. The results can be used in quality control of thermal and mechanical processing of steel wires.
Keywords: rod wave, acousto-elasticity, thermal processing, uniaxial stress, steel wire
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