COATING THICKNESS EVALUATION BY THERMOGRAPHIC APPARENT EFFUSIVITY METHOD
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F21%3A43963568" target="_blank" >RIV/49777513:23640/21:43963568 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11025/46700" target="_blank" >http://hdl.handle.net/11025/46700</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
COATING THICKNESS EVALUATION BY THERMOGRAPHIC APPARENT EFFUSIVITY METHOD
Original language description
Active thermography is a method for nondestructive inspection of materials. This contribution presents quantitative inspection of coating thickness by flash-pulse thermographic inspection and apparent thermal effusivity based evaluation. The apparent thermal effusivity algorithm for evaluation and visualisation of coating thickness is presented. The algorithm is based on a threshold value of the apparent effusivity, which can be found for any couple of substrate and coating if their effusivities differ. The square root of time at which the apparent effusivity curve reaches this threshold is then proportional to the thickness of the coating. Effectivity of the method is demonstrated by numerical model and experimental data obtained by inspection of Cr13%Fe thermally sprayed coatings made by twin wire arc spaying technology. A linear dependence between square root of apparent effusivity threshold time and couating thickness was found. Influence of the pulse length and presence of defects on the results are studied.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20301 - Mechanical engineering
Result continuities
Project
<a href="/en/project/EF18_069%2F0010018" target="_blank" >EF18_069/0010018: LABIR-PAV / Pre-application research of infrared technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
METAL 2021
ISBN
978-80-87294-99-4
ISSN
2694-9296
e-ISSN
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Number of pages
5
Pages from-to
772-776
Publisher name
TANGER Ltd., Ostrava
Place of publication
Ostrava
Event location
Brno
Event date
May 26, 2021
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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