THERMAL SCIENCE

International Scientific Journal

Qingju Tang

,

Shuaishuai Gao

,

Yongjie Liu

,

Yumei Lu

,

Peng Xu

EXPERIMENTAL RESEARCH ON YSZ TBC STRUCTURE DEBONDING DEFECT DETECTION USING LONG-PULSED EXCITATION OF INFRARED THERMAL WAVE NON-DESTRUCTIVE TESTING

ABSTRACT
Thermal barrier coating structure components are prone to coating cracking, debonding and peeling defects in the service process, which affects the work safety and reliability of the hot end parts, even result to catastrophic consequences. Experimental research on Yttria-stabilized zirconia thermal barrier coating structure debonding defect detection has been conducted using long-pulsed excitation of infrared wave non-destructive testing technology. Differences between surface temperature signals of sound and defective regions, detection effect comparison of heating and cooling process, detection effect comparison of different defect preparation methods, and impact of inspection parameters on detection effect were studied and discussed. The research conclusions will provide technical guidance to Yttria-stabilized zirconia thermal barrier coating structure debonding defects using long-pulsed excitation of infrared wave non-destructive testing technology
KEYWORDS
thermal barrier coating, debonding defects, long-pulsed, infrared wave non-destructive testing technology
PAPER SUBMITTED: 2018-05-13
PAPER REVISED: 2018-06-17
PAPER ACCEPTED: 2018-08-12
PUBLISHED ONLINE: 2019-04-14
DOI REFERENCE: https://doi.org/10.2298/TSCI180513128T
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2019, VOLUME 23, ISSUE Issue 3, PAGES [1313 - 1321]
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Experimental research on YSZ TBC structure debonding defect detection using long-pulsed excitation of infrared thermal wave non-destructive testing

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence