Non-destructive characterization of hydrogen concentration in Zircalloy

被引：4
|
作者：
Yang, CH [1 ]
Huang, MF [1 ]
机构：
[1] Chang Gung Univ, Dept Mech Engn, Taoyuan, Taiwan
来源：
ADVANCES IN NONDESTRUCTIVE EVALUATION, PT 1-3 | 2004年 / 270-273卷
关键词：
Zircaloy; hydrogen embrittlement; ultrasound; acoustic microscope; PVDF;
D O I：
10.4028/www.scientific.net/KEM.270-273.89
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
An ultrasound nondestructive (NDE) technique is used to characterize hydrogen concentration (HC) in Zircaloy tubes. This ultrasound-based NDE technique employs a low-frequency PVDF/LFB transducer operated in a z-scan mode to obtain the dispersion relation of guided acoustic waves propagation in the Zircaloy tubes. A Fourier-based signal processing technique is used to obtain the dispersion curves. With this ultrasound technique, the determined dispersion relations are used to determine the HC in Zircaloy tubes with a resolution better than 300 ppm.
引用
收藏
页码：89 / 95
页数：7
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