Abstract
The paper presents research into changes in the ultrasonic velocity (Rayleigh wave propagation) at plastic deformation of the type 40Kh13 corrosion-resistant high-chromium steel with a sorbitol structure after high-temperature tempering (original state) and after electrolytic hydrogenation saturation for 12 and 24 h. The method implementation for measuring Rayleigh wave propagation includes a periodic generation of square-waves 100 nm long. Measurements are performed at the input of a radiating piezoelectric transducer including the wave propagation over the specimen using a receiving piezoelectric transducer connected to a digital oscilloscope. Measurements show changes not only in the deformation curve at uniaxial tension but also in the dependence between the ultrasonic velocity and deformation.
Highlights
The paper presents research into changes in the ultrasonic velocity (Rayleigh wave propagation) at plastic deformation of the type 40Kh13 corrosion-resistant high-chromium steel with a sorbitol structure after high-temperature tempering and after electrolytic hydrogenation saturation for 12 and 24 h
Measurements are performed at the input of a radiating piezoelectric transducer including the wave propagation over the specimen using a receiving piezoelectric transducer connected to a digital oscilloscope
Механические испытания плоских образцов в форме двойной лопатки проводились по схеме одноосного растяжения на испытательной машине Walter+Bai (Швейцария) при комнатной температуре со скоростью 6,67 10–5 с–1
Summary
CHANGES IN ULTRASONIC VELOCITY AT HYDROGEN EMBRITTLEMENT OF HIGH-CHROMIUM STEEL The paper presents research into changes in the ultrasonic velocity (Rayleigh wave propagation) at plastic deformation of the type 40Kh13 corrosion-resistant high-chromium steel with a sorbitol structure after high-temperature tempering (original state) and after electrolytic hydrogenation saturation for 12 and 24 h. Баранникова С.А., Лунѐв А.Г., Малиновский А.П., Зуев Л.Б., 2018
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