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

期刊论文
发表日期：

2024年9月1日

查看全文

V. S. Trush,
Ye. P. Pochapskyi,
B. P. Klym,
T. M. Kravchyshyn,
M. A. Tikhonovsky,
P. I. Stoev,
I. Z. Butrynskyi,
A. E. Stetsko,
V. M. Korendiy,
Ya. Ya. Sirak

摘要

The influence of modified layers formed during chemicothermal treatment and subsequent hydrogen saturation 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 was on average three times greater than that of the untreated alloy, while of the high-amplitude signals it was less. Similar results were obtained after saturation with hydrogen. The character of the amplitude distribution of AE signals for an oxidized sample was decreasing, while for a vacuum-treated sample, it changed, in particular, the number of signals in the high-amplitude region increased significantly.