Study of residual stresses in CT test specimens welded by electron beam

The paper reports result of residual stress distribution studies in CT specimens reconstituted by electron beam welding (EBW). The main aim of the study is evaluation of the applicability of the welding technique for CT specimens' reconstitution. Thus, the temperature distribution during electr...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 992; no. 1; pp. 12016 - 12020
Main Authors Papushkin, I V, Kaisheva, D, Bokuchava, G D, Angelov, V, Petrov, P
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.03.2018
Subjects
Electron beam welding
Neutron diffraction
Neutrons
Physics
Residual stress
Stress distribution
Temperature distribution
Welded joints
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Summary:The paper reports result of residual stress distribution studies in CT specimens reconstituted by electron beam welding (EBW). The main aim of the study is evaluation of the applicability of the welding technique for CT specimens' reconstitution. Thus, the temperature distribution during electron beam welding of a CT specimen was calculated using Green's functions and the residual stress distribution was determined experimentally using neutron diffraction. Time-of-flight neutron diffraction experiments were performed on a Fourier stress diffractometer at the IBR-2 fast pulsed reactor in FLNP JINR (Dubna, Russia). The neutron diffraction data estimates yielded a maximal stress level of ±180 MPa in the welded joint.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/992/1/012016