Paper Title:
Determination of the Hydrogen Concentration in Zr-2.5Nb Alloy by a Resonant Ultrasound Spectroscopy
  Abstract

Zirconium alloys are used for many applications in nuclear components, such as the pressure tube material in a pressurized heavy water reactor, nuclear fuel cladding, etc. One of the problems during the operation of a nuclear reactor is the degradation of the zirconium alloys, which is due to an increase of the hydrogen content in the zirconium alloy. Therefore a non-destructive determination of the hydrogen concentration in zirconium alloy is one of the important issues that need to be addressed. The resonant ultrasound spectroscopy (RUS) technique is evaluated for a characterization of the hydrogen concentration in Zr-2.5Nb alloy. Referring to the terminal solid solubility for dissolution (TSSD) of Zr-2.5Nb alloy, the plot of the mechanical damping coefficient (Q-1) versus the temperature or the deviation of the resonant frequency for the temperature (df/dT) versus the temperature was correlated for the hydrogen concentration in Zr-2.5Nb alloy. It was found that the temperature at an abrupt change of the slope can be correlated with the hydrogen concentration of the Zr-2.5Nb alloy.

  Info
Periodical
Key Engineering Materials (Volumes 321-323)
Edited by
Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi
Pages
1576-1579
DOI
10.4028/www.scientific.net/KEM.321-323.1576
Citation
Y. M. Cheong, Y. S. Kim, "Determination of the Hydrogen Concentration in Zr-2.5Nb Alloy by a Resonant Ultrasound Spectroscopy", Key Engineering Materials, Vols. 321-323, pp. 1576-1579, 2006
Online since
October 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Young Suk Kim, Sang Bok Ahn, Kang Soo Kim, Yong Moo Cheong
Abstract:Threshold stress intensity factor or KIH required to initiate a delayed hydride crack in the axial direction of a Zr-2.5Nb tube was...
919
Authors: Joung Ah Kang, Kwon Yeong Lee, Gyung Guk Kim, Ji Hui Kim, Sun Doo Kim, Chong Seung Yoon, Kyung Jong Lee, Seon Jin Kim
Abstract:Hydrogen redistribution caused by thermotransport in the Zr-1.0Nb-1.0Sn-0.1Fe alloy under the temperature gradient which is likely to be...
1477
Authors: Yasunari Shinohara, Hiroaki Abe, Toshiya Kido, Takeo Iwai, Naoto Sekimura
Abstract:The formation of hydrides in zirconium alloy has been one of the essential matters of discussion to maintain mechanical strength of nuclear...
1765
Authors: L. Velciu, T. Meleg, M. Mihalache
Abstract:The aim of this study is to discuss the morphology (the shape and orientation) of the hydride platelets in the pressure tube material...
237
Authors: K.R.F. Silva, Dílson S. dos Santos, A.F. Ribeiro, L.H. Almeida
Abstract:Hydrogen gas permeation tests were performed on two Nb-modified Zr alloys used in the nuclear industry. The influence of the microstructure...
722