Laser ultrasound technique for material characterization of Zircaloy cladding tubes in elevated temperature environment

Cheng Hung Yeh*, Che Hua Yang

*此作品的通信作者

研究成果: 圖書/報告稿件的類型會議稿件同行評審

1 引文 斯高帕斯(Scopus)

摘要

This research focuses on characterizing elastic properties of Zircaloy cladding tubes at high temperature environment up to 295°C. A laser ultrasound technique (LUT) is used to measure the dispersions of guided waves propagating along the axial direction of the cladding tubes at different temperature environment. It is shown that the LUT is able to measure the dispersion curve of Zircaloy in the elevated temperature environment. Then an inversion procedure is used to determine elastic constants of the Zircaloy tubes at high temperature from the measured dispersion spectra of guided waves. The dispersion spectra shift towards the direction of lower frequency and lower velocity while the temperature increase. The Young's modulus is found to decrease linearly as the temperature increasing. This method is potentially useful to probe the material properties at high temperature environment in a remote and nondestructive way which is desired in nuclear power industry.

原文英語
主出版物標題Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011
DOIs
出版狀態已出版 - 2011
對外發佈
事件Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011 - San Diego, CA, 美國
持續時間: 07 03 201110 03 2011

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
7983
ISSN(列印)0277-786X

Conference

ConferenceNondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2011
國家/地區美國
城市San Diego, CA
期間07/03/1110/03/11

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