Temperature distribution during welding measured by neutron imaging

Abstract This study was carried out to investigate the neutron transmission signal as a function of sample temperature during a welding process. A theoretical description that includes the Debye-Waller factor was used to describe the temperature influence on the neutron cross-sections. Neutron imagi...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 2605; no. 1; pp. 12026 - 12034
Main Authors Jamro, R., Mente, T., Kardjilov, N., Markötter, H., Al-Falahat, Ala’A. M., Woracek, R., Manke, I., Griesche, A.
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.09.2023
Subjects
Debye-Waller factor
Finite element method
Imaging
in-situ neutron imaging
Nuclear cross sections
Physics
Temperature distribution
Welding
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Summary:Abstract This study was carried out to investigate the neutron transmission signal as a function of sample temperature during a welding process. A theoretical description that includes the Debye-Waller factor was used to describe the temperature influence on the neutron cross-sections. Neutron imaging using a monochromatic beam helps to observe transmission variations related to the material temperature. In-situ neutron imaging of welding experiments show the distribution of the temperature in bulk steel samples. The performed finite element modelling of expected temperature distributions shows good agreement with the obtained experimental data.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/2605/1/012026