Active IR Thermography Evaluation of Coating Thickness by Determining Apparent Thermal Effusivity

Active IR Thermography Evaluation of Coating Thickness by Determining Apparent Thermal Effusivity

Bibliographic Details
Parent link:	Materials Vol. 13, iss. 8.— 2020.— [4057, 12 p.]
Corporate Author:	Национальный исследовательский Томский политехнический университет Инженерная школа неразрушающего контроля и безопасности Центр промышленной томографии Научно-производственная лаборатория "Тепловой контроль"
Other Authors:	Moskovchenko A. I. Aleksey Igorevich, Vavilov V. P. Vladimir Platonovich, Svantner M. Michal, Muzika L. Lukas, Houdkova S.
Summary:	Title screen Pulsed thermography is a common technique for nondestructive testing (NDT) of materials. This study presents the apparent effusivity method for the quantitative evaluation of coating thickness in a one-sided thermal NDT procedure. The proposed algorithm is based on determining a threshold value of apparent effusivity, which can be found for particular coating-on-substrate structures. It has been found that the square root of the time at which the apparent effusivity curve reaches this threshold is proportional to the coating thickness. The efficiency of the proposed approach is demonstrated by analytical modeling and experimentation performed on thermally-sprayed coatings.
Published:	2020
Subjects:	электронный ресурс труды учёных ТПУ pulse thermography coating thickness apparent effusivity thermal NDT thermally sprayed coatings thermographic testing infrared non-destructive testing термография толщина неразрушающий контроль покрытия термографические исследования
Online Access:	https://doi.org/10.3390/ma13184057
Format:	Electronic Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=662947

Internet

https://doi.org/10.3390/ma13184057