Surface transient temperature inversion for hidden corrosion characterisation: theory and applications; International Journal of Heat and Mass Transfer; Vol. 39, iss. 2

Surface transient temperature inversion for hidden corrosion characterisation: theory and applications; International Journal of Heat and Mass Transfer; Vol. 39, iss. 2

Библиографические подробности
Источник:International Journal of Heat and Mass Transfer
Vol. 39, iss. 2.— 1996.— P. 355-371
Другие авторы: Vavilov V. P. Vladimir Platonovich, Grinzato E., Bison P. G., Marinetti S., Bales M. J.
Примечания:Corrosion in metals is simulated with variations in plate thickness which are laterally infinite in a 1D model and are represented by milled flat-bottom holes in a 2D model. Temperature contrast over corroded areas is chosen as an informative parameter, quite independent of absorbed thermal energy in the infra-red thermographic test. It is shown that, due to lower sensitivity to rear-side effects at the beginning of the thermal process and increasing 3D heat diffusion effects at the end of the process, there is an optimum time to detect corrosion. A robust inversion function is proposed and its stability against variations in tested material, heat pulse duration and observation time is analysed using numerical modelling. Corrosion in a steel specimen of 1.3 mm thickness is experimentally studied, having proved the validity of the inversion algorithm with an average accuracy of 17% for material loss ranging from 74 to 14%.
В фонде НТБ ТПУ отсутствует
Язык:английский
Опубликовано: 1996
Предметы:
труды учёных ТПУ
Формат: Статья
Запись в KOHA:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=599054

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