ISIS Neutron and Muon Source Data Journal
This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at https://www.isis.stfc.ac.uk.
Residual Stress Mapping of MIG-Welded 304L Stainless Steel Cladding on Q345R Steel Using Neutron Diffraction
Abstract: The reliability of dissimilar metal welded structures, particularly 304L stainless steel cladded onto Q345R low alloy steel, depends strongly on residual stresses generated during fabrication. These stresses, which develop at the cladding substrate interface, influence structural integrity, service life, and susceptibility to cracking. This proposal aims to establish a baseline understanding of residual stress distributions in MIG-welded cladded joints using high-resolution neutron diffraction on the ENGIN-X beamline. The study will focus specifically on the role of cladding in stress development, rather than attempting to cover multiple simultaneous variables. Three representative samples are proposed: one stress-free reference specimen, one welded but unbent specimen, and one welded and pre-bent specimen. This simplified design ensures efficient use of beamtime while isolating the direct contribution of cladding and the combined effect of bending and welding. The results will provide fundamental insight into stress localisation at the weld interface, which is directly relevant to the safe design of pressure vessels and pipeline systems. The measurements will also form the foundation for validating finite element simulations, with future phases planned to investigate additional mechanical and environmental effects.
Principal Investigator: Professor Hongbiao Dong
Experimenter: Mr Ali Fahem
Experimenter: Dr Tung Lik Lee
Local Contact: Dr Ruiyao Zhang
Experimenter: Dr Elsiddig Elmukashfi
DOI: 10.5286/ISIS.E.RB2610366
ISIS Experiment Number: RB2610366
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2610366-1 | ENGINX | 12 June 2029 | Download |
Publisher: STFC ISIS Neutron and Muon Source
Data format: RAW/Nexus
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Data Citation
The recommended format for citing this dataset in a research
publication is as:
[author], [date], [title], [publisher],
[doi]
For Example:
Professor Hongbiao Dong et al; (2026): Residual Stress Mapping of MIG-Welded 304L Stainless Steel Cladding on Q345R Steel Using Neutron Diffraction, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2610366
Data is released under the CC-BY-4.0 license.
