FIELD: physics, measurement.
SUBSTANCE: application: for manufacture of samples used in nondestructive ultrasonic test of joints arranged as a result of welding of two billets. During manufacture of samples for ultrasonic control, two billets made of controlled material are joined by welding with placement of artificial defect in previously arranged groove, with further welding-up, at that defect-forming element is made of refractory metal wire, melt temperature of which (°C) exceeds melt temperature (°C) of welded material at least twice.
EFFECT: higher accuracy of adjustment, calibration of ultrasonic flaw detectors and decoding of control results relative to stretching defects of small section.
2 dwg
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