Application of Synchrotron Radiation–Computed Tomography In-Situ Observations and Digital Volume Correlation to Study Low-Cycle Fatigue Damage Micromechanisms in Lost Foam Casting A319 Alloy
| Autor: | Long Wang, Jean-Yves Buffiere, Ahmed El Bartali, Jean-François Witz, Eric Charkaluk, Nathalie Limodin |
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| Přispěvatelé: | Science and Technology on Reliability and Environmental Engineering Laboratory, Laboratoire de Mécanique, Multiphysique, Multiéchelle - UMR 9013 (LaMcube), Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Centrale Lille, Matériaux, ingénierie et science [Villeurbanne] (MATEIS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS), Laboratoire de mécanique des solides (LMS), École polytechnique (X)-Mines Paris - PSL (École nationale supérieure des mines de Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), China Scholarship Council (Ph.D. thesis of Long Wang), PSA Peugeot-Citroën, Swiss Light Source (TOMCAT beamline), ANR-12-RMNP-0011,INDiANA,Influence des défauts de fonderie dans l'endommagement par fatigue thermomécanique oligocyclique des alliages d'aluminium obtenus par un procédé à modèle perdu(2012), École polytechnique (X)-MINES ParisTech - École nationale supérieure des mines de Paris |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Alloy 0211 other engineering and technologies Synchrotron radiation 02 engineering and technology engineering.material 01 natural sciences law.invention [SPI]Engineering Sciences [physics] law 0103 physical sciences Composite material Synchrotron radiation computed tomography 021102 mining & metallurgy 010302 applied physics Structural material Metallurgy Low cycle fatigue Metals and Alloys In-situ Fracture mechanics Condensed Matter Physics Microstructure Synchrotron Mechanics of Materials Al-Si alloys engineering Digital Volume Correlation Tomography Lost-foam casting |
| Zdroj: | Metallurgical and Materials Transactions A Metallurgical and Materials Transactions A, 2020, 51 (8), pp.3843-3857. ⟨10.1007/s11661-020-05839-5⟩ Metallurgical and Materials Transactions A, Springer Verlag/ASM International, 2020, 51 (8), pp.3843-3857. ⟨10.1007/s11661-020-05839-5⟩ |
| ISSN: | 1073-5623 |
| Popis: | International audience; The synchrotron radiation–computed tomography (SR-CT) and digital volume correlation (DVC) methods were used to investigate the damage micromechanisms of lost foam casting (LFC) A319 alloy in low-cycle fatigue (LCF). LCF tests with SR-CT in-situ observations allow visualizing the damage evolution process in the bulk. DVC measures the mechanical fields and, thus, allows establishing the relations between crack initiation and propagation, mechanical fields, and microstructure. Cracks initiate at and propagate along hard inclusions due to strain localizations. The damage process, i.e., crack initiation and propagation, can be considered as a series of failure events of hard inclusions under strain localizations. The pores’ size, shape, location, and number were observed to have an influence on crack initiation, while the interconnected hard inclusion networks guarantee the continuous failure events of hard inclusions and, thus, provide crack propagation paths. |
| Databáze: | OpenAIRE |
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