Тhermographic defectoscopy of materials in nuclear power engineering based on the analysis of the normalized coefficient of the dynamics of thermoproduction of defects at induction activation

• Дата: 2018
• Автори: Bazaleev, N.I., Lytvynenko, V.V.
• Формат: Стаття
• Мова: English
• Опубліковано: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2018
• Назва видання: Вопросы атомной науки и техники
• Теми: Диагностика и методы исследований
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/147713
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Тhermographic defectoscopy of materials in nuclear power engineering based on the analysis of the normalized coefficient of the dynamics of thermoproduction of defects at induction activation / N.I. Bazaleev, V.V. Lytvynenko // Вопросы атомной науки и техники. — 2018. — № 5. — С. 154-161. — Бібліогр.: 13 назв. — англ.

The features of induction thermography for flaw detection of ferromagnetic materials used in nuclear power engineering are considered. A technique for thermographic defectoscopy of ferromagnetic materials based on dynamic contrast analysis of thermal images and the normalized coefficient of thermal manifestation of defects at the electromagnetic activation of samples is proposed. The materials of experimental studies confirming the efficiency of using low-frequency (50 Hz) inductors in thermographic defectoscopy, the possibility of identifying thermal manifestations of defects against a background of false thermoanomalies by monitoring the change in the thermodynamic temperature in the region of defects during induction activation are presented.