AI Article Synopsis
- A high-pressure torsion apparatus, combined with in situ X-ray tomography (XRT), allows for the investigation of microstructures in materials under large shear strains.
- Deformation experiments on multi-phase samples were conducted at pressures of 3-5 GPa and temperatures of 300-500°C, measuring the shear strain in relation to the angles of anvil twisting.
- The study explores 2D and 3D quantifications of microfabrics in two-phase aggregates under high shear strain, while also addressing limitations in real-time investigation using this combined technology.
Article Abstract
High-pressure (>1 GPa) torsion apparatus can be coupled with in situ X-ray tomography (XRT) to study microstructures in materials associated with large shear strains. Here, deformation experiments were carried out on multi-phase aggregates at ∼3-5 GPa and ∼300-500°C, using a rotational tomography Paris-Edinburgh press (RoToPEc) with in situ absorption contrast XRT on the PSICHE beamline at Synchrotron SOLEIL. The actual shear strain reached in the samples was quantified with respect to the anvil twisting angles, which is γ ≤ 1 at 90° anvil twist and reaches γ ≃ 5 at 225° anvil twist. 2D and 3D quantifications based on XRT that can be used to study in situ the deformation microfabrics of two-phase aggregates at high shear strain are explored. The current limitations for investigation in real time of deformation microstructures using coupled synchrotron XRT with the RoToPEc are outlined.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10481265 | PMC |
| http://dx.doi.org/10.1107/S1600577523005374 | DOI Listing |
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