2018 №12 (10) DOI of Article
2018 №12 (12)

Automatic Welding 2018 #12
Avtomaticheskaya Svarka (Automatic Welding), #11-12, 2018, с. 118-125

Magnetoacoustic diagnostics of hydrogen damage of ferromagnetic materials

Z.T. Nazarchuk, V.R. Skalskyi

H.V. Karpenko Physico-Mechanical Institute of the NAS of Ukraine. 5 Naukova Str., 79060, Lviv, Ukraine. E-mail: pminasu@ipm.lviv.ua

The experimental investigations were carried out in order to quantitatively determine a change of parameters of signals of magnetoelastic acoustic emission under effect of structural transformations and level of hydrogenation of ferromagnetic materials. It is shown that application of a phenomenon of magnetoelastic acoustic emission can make a basis for development of the new high-sensitive non-destructive technologies for detection of hydrogen taken by material during long-term operation of structures. 7 Ref., 9 Fig.
Keywords: non-destructive testing technologies, metallic structures, hydrogen-containing media, magnetoelastic emission, parameters of signals, increase of sensitivity

Received: 18.06.2018
Published: 06.11.2018
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