Atom probe tomography of secondary γ′ precipitation in a single crystal Ni-based superalloy after isothermal aging at 1100 °c
| Autor: | Luc Rougier, Dominique Mangelinck, Carine Perrin-Pellegrino, Virginie Jaquet, Xipeng Tan, Alain Jacot, Charles-André Gandin, Damien Ponsen |
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| Přispěvatelé: | Institut des Matériaux, de Microélectronique et des Nanosciences de Provence (IM2NP), Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU), STI IMX LSMX, Ecole Polytechnique Fédérale de Lausanne (EPFL), Centre de Mise en Forme des Matériaux (CEMEF), MINES ParisTech - 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), Service YQGC, Snecma-SAFRAN group, Aix Marseille Université (AMU)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Mines Paris - PSL (École nationale supérieure des mines de Paris) |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
010302 applied physics
Materials science Precipitation (chemistry) Mechanical Engineering Nucleation mode Metals and Alloys 02 engineering and technology Atom probe Precipitation Composition fluctuations 021001 nanoscience & nanotechnology 01 natural sciences Isothermal process law.invention [SPI.MAT]Engineering Sciences [physics]/Materials Superalloy Crystallography Atom probe tomography High-temperature alloys Mechanics of Materials law 0103 physical sciences Materials Chemistry 0210 nano-technology Single crystal |
| Zdroj: | Journal of Alloys and Compounds Journal of Alloys and Compounds, Elsevier, 2014, 611, pp.389-394. ⟨10.1016/j.jallcom.2014.05.132⟩ Journal of Alloys and Compounds, 2014, 611, pp.389-394. ⟨10.1016/j.jallcom.2014.05.132⟩ |
| ISSN: | 0925-8388 |
| DOI: | 10.1016/j.jallcom.2014.05.132⟩ |
| Popis: | International audience; Secondary γ′ precipitation in a commercial single crystal Ni-based superalloy after the 1100 °C isothermal aging has been investigated by atom probe tomography. After the isothermal aging for 300 s, 1800 s and 3600 s, a bimodal size distribution of larger primary γ′ precipitates and numerous smaller secondary γ′ precipitates was obtained. It is proposed that the secondary γ′ precipitated via a non-classical nucleation mode. The coarsening of secondary γ′ precipitates well obeys the classical LSW theory. |
| Databáze: | OpenAIRE |
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