Acoustic emission of Zr–1% Nb alloy with modified surface layer under tension

Keywords

zirconium, surface layer, chemical-thermal treatment, acoustic emission.

Cite as

Trush V. S., Pochapskyi Ye. P., Klym B. P., Kravchyshyn T. M., Tikhonovsky M. A., Stoev P. I., Butrynskyi I. Z., Stetsko A. E., Korendiy V. M., and Sirak Ya. Ya. Acoustic emission of Zr–1% Nb alloy with modified surface layer under tension. Physicochemical Mechanics of Materials. 2024. 60(2), 090-095.

https://doi.org/10.15407/pcmm2024.02.090

Abstract

The influence of modified layers formed during chemical-thermal treatment and subse­quent hydrogen saturated on the physicomechanical properties and acoustic emission (AE) of ring samples cut from a zirconium tube of the Zr–1% Nb alloy was investigated. It was established that the activity of low-amplitude AE signals of the oxidized alloy is on average three times greater than that of the untreated alloy, and while of the high-amplitude signals it was less. After saturation with hydrogen, similar results were obtained. The character of the amplitude distribution of AE signals for an oxidized sample is decreasing, while for a vacuum-treated sample it changes, in particular, the number of signals in the high-ampli­tude region increases significantly.

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