Determination and mitigation of the uncertainty of neutron diffraction measurements of residual strain in large-grained polycrystalline material
- Submitting institution
-
The Open University
- Unit of assessment
- 12 - Engineering
- Output identifier
- 1459828
- Type
- D - Journal article
- DOI
-
10.1107/S1600576715002757
- Title of journal
- Journal of Applied Crystallography
- Article number
- -
- First page
- 582
- Volume
- 48
- Issue
- 2
- ISSN
- 0021-8898
- Open access status
- Out of scope for open access requirements
- Month of publication
- March
- Year of publication
- 2015
- URL
-
-
- Supplementary information
-
-
- Request cross-referral to
- -
- Output has been delayed by COVID-19
- No
- COVID-19 affected output statement
- -
- Forensic science
- No
- Criminology
- No
- Interdisciplinary
- No
- Number of additional authors
-
4
- Research group(s)
-
-
- Proposed double-weighted
- No
- Reserve for an output with double weighting
- No
- Additional information
- The measurement of residual strains by neutron diffraction in large-grained polycrystalline material is inherently inaccurate because of the random positioning of the few diffracting grains. This work describes an original method for minimising errors by taking pairs of measurements, rotated 180° around the centre of the gauge volume. The work is significant because decreasing the error in residual strain enables better determination of residual stress. This approach benefits all experimentalists in future neutron strain experiments where large grain errors are of concern. The research was funded by AREVA and has contributed to the Neutron International Standard ISO/DIS21342:2018(E).
- Author contribution statement
- -
- Non-English
- No
- English abstract
- -
