ISIS Neutron and Muon Source Data Journal

POST WELD HEAT TREATMENT RESIDUAL STRESS RELIEF IN INCONEL ALLOY 740H ANALYSED BY NEUTRON DIFFRACTION AND EIGENSTRAIN MODELLING

Abstract: The eigenstrain reconstruction method can provide residual stress calibration for processing and simulated service conditions for which experimental data is available. The eigenstrain Contour Method (eCM) previously allowed the reconstruction of residual stresses in large components and was partially validated against experimental CMM data, but further cross-techniqu validation is crucially needed. The eigenstrain source distributions from the previous study will be used to fine tune the creep model to predict the residual stress relief during the PWHT of Alloy 740H weldments. Our model can already predict the 3D distribution of the longitudinal, short- and long-transverse residual stress components from as-welded to PWHT conditions, but validation using neutron diffraction strain scanning (NDSS) is a key step needed to confirm its validity.

Principal Investigator: Professor Alexander Korsunsky
Experimenter: Mrs Chrysanthi Papadaki
Local Contact: Dr Tung Lik Lee
Experimenter: Mr Enrico Salvati
Experimenter: Dr Fatih Uzun
Experimenter: Mr Benjamin de Jager
Experimenter: Mr Ivan Wang

DOI: 10.5286/ISIS.E.RB1910363

ISIS Experiment Number: RB1910363

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 Alexander Korsunsky et al; (2019): POST WELD HEAT TREATMENT RESIDUAL STRESS RELIEF IN INCONEL ALLOY 740H ANALYSED BY NEUTRON DIFFRACTION AND EIGENSTRAIN MODELLING, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1910363

Data is released under the CC-BY-4.0 license.