Journal article
Application of strain tomography and contour method to residual stress analysis in additively manufactured CM247LC superalloy parts
- Abstract:
- Residual stresses are recognized as a critical factor influencing the mechanical performance and structural integrity of additively manufactured parts, particularly in nickel-based superalloys. Although the contour method and strain tomography have been applied independently for residual stress evaluation of such materials, a direct comparison of their reconstructions in laser powder bed fusion fabricated specimens has not been reported. In this study, both techniques were employed on identically produced specimens of CM247LC superalloy, and a strong qualitative agreement in residual elastic strain distributions was observed. Using the contour method, tensile residual stresses up to +1300 MPa were identified near the specimen edges, while compressive stresses approaching − 600 MPa were found in the central regions. Strain tomography, based on synchrotron X-ray diffraction, was used to non-destructively reconstruct internal residual elastic strain fields, revealing consistent trends and capturing localized variations aligned with the contour method. Through this integrated approach, a complete validation of stress reconstruction was achieved, and new insights into the stress evolution of laser powder bed fusion manufactured CM247LC were provided. The findings demonstrate how the complementary strengths of these techniques can be leveraged for improved residual stress characterization in high-performance superalloy parts.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Access Document
- Files:
-
-
(Preview, Version of record, pdf, 1.4MB, Terms of use)
-
- Publisher copy:
- 10.1007/s40964-025-01116-2
Authors
+ Engineering and Physical Sciences Research Council
More from this funder
- Funder identifier:
- https://ror.org/0439y7842
- Grant:
- EP/V007785/1
- Publisher:
- Springer
- Journal:
- Progress in Additive Manufacturing More from this journal
- Volume:
- 10
- Issue:
- 10
- Pages:
- 8279-8291
- Publication date:
- 2025-04-23
- Acceptance date:
- 2025-04-06
- DOI:
- EISSN:
-
2363-9520
- ISSN:
-
2363-9512
- Language:
-
English
- Keywords:
- Pubs id:
-
2121097
- Local pid:
-
pubs:2121097
- Deposit date:
-
2025-05-27
- ARK identifier:
Terms of use
- Copyright holder:
- Uzun et al.
- Copyright date:
- 2025
- Rights statement:
- Copyright © 2025, The Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
- Licence:
- CC Attribution (CC BY)
If you are the owner of this record, you can report an update to it here: Report update to this record