Evolution of irradiation-induced strain in an equiatomic NiFe alloy
| Autor: | Hongbin Bei, William J. Weber, Mohammad W. Ullah, Neila Sellami, Yanwen Zhang, Aurélien Debelle |
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| Přispěvatelé: | Centre de Sciences Nucléaires et de Sciences de la Matière (CSNSM), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11) |
| Rok vydání: | 2017 |
| Předmět: |
[PHYS]Physics [physics]
010302 applied physics Diffraction Materials science Strain (chemistry) Mechanical Engineering Alloy Relaxation (NMR) Metals and Alloys 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Crystallographic defect Molecular physics Ion Crystallography Mechanics of Materials 0103 physical sciences engineering General Materials Science Irradiation Dislocation 0210 nano-technology |
| Zdroj: | Scripta Mater. Scripta Mater., 2017, 140, pp.35-39. ⟨10.1016/j.scriptamat.2017.06.042⟩ |
| ISSN: | 1359-6462 |
| DOI: | 10.1016/j.scriptamat.2017.06.042 |
| Popis: | International audience; The evolution of irradiation-induced atomic strain in an equiatomic NiFe concentrated solid-solution alloy is investigated using both atomistic simulations and x-ray diffraction analysis. The irradiations are performed using 1.5 MeV Ni ions to fluences ranging from 1 × 1013 to 1 × 1014 cm− 2. The irradiation simulations are carried out by overlapping 5 keV Ni recoils cascades up to a total of 300 recoils. An increase of volumetric strain is observed at low dose, which is associated with production of point defects and small clusters. Relaxation of strain occurs at higher doses, when large defect clusters, e.g., dislocation loops, dominate. |
| Databáze: | OpenAIRE |
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