Abstract
Background: The ability to non-destructively map the residual strain field inside an engineering component is important for predicting its fatigue life or developing processing methods to prevent failure or enhance performance. Objective: In this paper, we describe a new residual strain mapping program at the Advanced Photon Source, Argonne National Laboratory. Methods: The new program is based on energy dispersive x-ray diffraction (EDXRD). It is capable of non-destructively penetrating a several-cm thick polycrystalline sample fabricated from engineering alloys using high-energy x-rays and measuring the residual strain field with mm or better spatial resolution and approximately ± 1 × 10 - 4 strain resolution. A multi-element detector array is employed to measure multiple strain components simultaneously. The residual strain mapping setup is augmented with a high-energy tomography capability, allowing precise alignment of the material volume of interest for residual strain mapping and providing a complementary view of the structure to understand the measured strain field. Results: These measurement capabilities are demonstrated using several strain mapping examples ranging from polycrystalline structural alloys to biological materials. We also provide some guidance for the future users of the program for a successful residual strain mapping experiment. Conclusions: We are expanding the capabilities of the new setup with various in situ capabilities including thermo-mechanical loading.
Original language | English (US) |
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Pages (from-to) | 1363-1379 |
Number of pages | 17 |
Journal | Experimental Mechanics |
Volume | 62 |
Issue number | 8 |
DOIs | |
State | Published - Oct 2022 |
Funding
This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility at Argonne National Laboratory and is based on research supported by the U.S. DOE Office of Science-Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. The authors acknowledge Ali Mashayekhi and Roger Ranay of the APS for their assistance in setting up the EDXRD program at the APS 6-BM beamline. Beamline 6BM-B, APS, is supported by COMPRES, the Consortium for Materials Properties Research in Earth Sciences under NSF Cooperative Agreement EAR-1661511. JSP acknowledges discussions with Basil Blank of PulseRay Inc., NY for the development of the interference fit sample. This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility at Argonne National Laboratory and is based on research supported by the U.S. DOE Office of Science-Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. The authors acknowledge Ali Mashayekhi and Roger Ranay of the APS for their assistance in setting up the EDXRD program at the APS 6-BM beamline. Beamline 6BM-B, APS, is supported by COMPRES, the Consortium for Materials Properties Research in Earth Sciences under NSF Cooperative Agreement EAR-1661511. JSP acknowledges discussions with Basil Blank of PulseRay Inc., NY for the development of the interference fit sample.
Keywords
- ADXRD
- Angle dispersive x-ray diffraction
- EDXRD
- Energy dispersive x-ray diffraction
- Synchrotron radiation
ASJC Scopus subject areas
- Aerospace Engineering
- Mechanics of Materials
- Mechanical Engineering