Novel Methods for Recording Stress-Strain Curves in Proton Irradiated Material
| Autor: | Jack Donoghue, Michael Preuss, D. Lunt, Albert D. Smith, Alistair Garner, Keith Wilford, Philip J. Withers, Allan Harte |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Diffraction
Digital image correlation Materials science lcsh:Medicine Mechanical properties 02 engineering and technology Characterization and analytical techniques 01 natural sciences Focused ion beam Article 0103 physical sciences Ultimate tensile strength Irradiation Composite material lcsh:Science 010302 applied physics Multidisciplinary Stress–strain curve lcsh:R Nuclear energy Metals and alloys Strain hardening exponent 021001 nanoscience & nanotechnology Mechanical engineering lcsh:Q 0210 nano-technology Scanning electron microscopy Test data |
| Zdroj: | Scientific Reports, Vol 10, Iss 1, Pp 1-11 (2020) Scientific Reports |
| ISSN: | 2045-2322 |
| DOI: | 10.1038/s41598-020-62241-2 |
| Popis: | Proton irradiation is often used as a proxy for neutron irradiation but the irradiated layer is typically in-situ loading experiments are carried out using a combination of X-ray diffraction and digital image correlation on the near surface region in order to measure stress and strain, thereby eliminating the influence of the non-irradiated volume. The second approach is to manufacture small-scale tensile specimens containing only the proton irradiated volume but approaching the smallest representative volume of the material. This is achieved by high-speed focused ion beam (FIB) milling though the application of a Xe+ Plasma-FIB (PFIB). It is demonstrated that both techniques are capable of recording the early stage of uniaxial flow behaviour of the irradiated material with sufficient accuracy providing a measure of irradiation-induced shift of yield strength, strain hardening and tensile strength. |
| Databáze: | OpenAIRE |
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