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Hughes, D; Koukovini-Platia, E and Heeley, Ellen
(2014).
DOI: https://doi.org/10.1016/j.fusengdes.2013.12.041
Abstract
Whilst the structural integrity and lifetime considerations in welded joints for blanket modules can be predicted using finite element software, it is essential to prove the validity of these simulations. This paper provides detailed analysis for the first time, of the residual stress state in a laser-welded sample with integral cooling channels. State-of-the-art non-destructive neutron diffraction was employed to determine the triaxial stress state and to understand microstructural changes around the heat affected zone. Synchrotron X-ray diffraction was used to probe the variation of strain-free lattice reference parameter around the weld zone allowing correction of the neutron measurements. This paper details an important experimental route to validation of predicted stresses in complex safety-critical reactor components for future applications.
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About
- Item ORO ID
- 39623
- Item Type
- Journal Item
- ISSN
- 0920-3796
- Keywords
- EUROFER; laser welds; blanket assemblies; residual stress
- Academic Unit or School
-
Faculty of Science, Technology, Engineering and Mathematics (STEM) > Life, Health and Chemical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM) - Research Group
- Chemistry and Materials Research Group
- Copyright Holders
- © 2014 Elsevier B.V.
- Depositing User
- Ellen Heeley