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Título: | Analysis of the Combined Strengthening Effect of Solute Atoms and Precipitates on Creep of Aluminum Alloys |
Autor: | Fernández, Ricardo CSIC ORCID CVN; Bokuchava, Gizo; Toda Caraballo, Isaac CSIC ORCID ; Bruno, Giovanni; Turchenko, Vitalii; Gorshkova, Yulia; González-Doncel, Gaspar | Palabras clave: | Aluminum Creep Diffraction Precipitation Solute atoms |
Fecha de publicación: | 2020 | Editor: | Wiley-VCH | Citación: | Advance Engineering Materials 22 (4) : 1-12 1901355 (2020) | Resumen: | The creep strengthening mechanisms in (age-hardenable) aluminum alloys are analyzed on the basis of a new microstructural study of powder samples, an analysis of a comprehensive revision of creep data from the literature, and a new modeling approach. A strategy based on the strength difference (SD) method to separate the contributions of solid solution atoms and precipitates to creep strengthening is proposed. The new methodology considers the combination of the two contributions avoiding the need of a threshold stress term in the creep equation. The contribution of both precipitates and solid solution is taken into account by means of the analysis of the lattice parameter variation with aging time. For this study, powders of two commercial AA2xxx alloys have been analyzed using diffraction methods. The experimental results are modeled using Lubarda¿s approach combined with the SD method. | Versión del editor: | https://doi.org/10.1002/adem.201901355 | URI: | http://hdl.handle.net/10261/208248 | DOI: | 10.1002/adem.201901355 | Identificadores: | doi: 10.1002/adem.201901355 issn: 14381656 |
Aparece en las colecciones: | (CENIM) Artículos |
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Analysis of the Combined Strengthening Effect of Solute Atoms and Precipitates on Creep.pdf | Articulo principal | 1,26 MB | Adobe PDF | Visualizar/Abrir |
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