Polycrystalline modeling of the behavior of neutron-irradiated recrystallized zirconium alloys during strain path change tests
| العنوان: | Polycrystalline modeling of the behavior of neutron-irradiated recrystallized zirconium alloys during strain path change tests |
|---|---|
| المؤلفون: | B. Verhaeghe, Philippe Pilvin, F. Onimus, M. Bono, A. Soniak |
| المساهمون: | Service des Recherches Métallurgiques Appliquées (SRMA), Département des Matériaux pour le Nucléaire (DMN), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Service d'Etudes des Matériaux Irradiés (SEMI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut de Recherche Dupuy de Lôme (IRDL), École Nationale d'Ingénieurs de Brest (ENIB)-Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Centre National de la Recherche Scientifique (CNRS), This work has been funded by the project GAINE from the French nuclear tripartite institute CEA EDF Framatome., CEA- Saclay (CEA), Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | International Journal of Plasticity International Journal of Plasticity, 2020, 134, pp.102835. ⟨10.1016/j.ijplas.2020.102835⟩ International Journal of Plasticity, Elsevier, 2020, 134, pp.102835-. ⟨10.1016/j.ijplas.2020.102835⟩ |
| بيانات النشر: | HAL CCSD, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | 010302 applied physics, Cladding (metalworking), polycrystalline material, Materials science, Strain (chemistry), Mechanical Engineering, Zirconium alloy, Internal pressure, 02 engineering and technology, [CHIM.MATE]Chemical Sciences/Material chemistry, Flow stress, 021001 nanoscience & nanotechnology, 01 natural sciences, [SPI]Engineering Sciences [physics], Mechanics of Materials, mechanical testing, 0103 physical sciences, Ultimate tensile strength, General Materials Science, Crystallite, Composite material, 0210 nano-technology, Softening, cyclic loading, dislocations |
| الوصف: | International audience; During normal operating conditions, zirconium alloy nuclear fuel cladding tubes experience various biaxial loadings with complex strain path histories. Experiments have been conducted on neutron-irradiated thin cladding tubes in order to study the response to changes in the loading path. These tests consist of alternate internal pressure tests and axial tensile tests. During the internal pressure test steps, the flow stress exhibits significant cyclic strain softening, while axial tensile tests exhibit a smaller degree of cyclic strain softening. TEM analyses of the tested samples have revealed that the observed mechanical behavior can be attributed to clearing of irradiation-induced defect by gliding dislocations. The cyclic strain softening observed for internal pressure tests is due to clearing of defect by dislocations gliding in the basal planes. The smaller degree of cyclic strain softening in tensile tests is due to clearing of defects by dislocations gliding in the prismatic and pyramidal planes. A polycrystalline model has been developed to simulate these tests. This model is able to reproduce many features of the complex behavior of the material and provides a better understanding of the role of the clearing of defects and the contribution of kinematic hardening on the behavior of neutron-irradiated recrystallized zirconium alloys. |
| اللغة: | English |
| تدمد: | 0749-6419 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::418d163ca70f8a061bcf3ac5a5ba02bf https://hal.science/hal-03491963/document |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....418d163ca70f8a061bcf3ac5a5ba02bf |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 07496419 |
|---|