Microstructural evolution of AA7050 al alloy processed by ECAP
| العنوان: | Microstructural evolution of AA7050 al alloy processed by ECAP |
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| المؤلفون: | W.J. Botta Filho, E. K. Cardoso, A.M. Jorge Junior, V. Guido, Gilbert Silva |
| المصدر: | Matéria (Rio de Janeiro) v.15 n.2 2010 Matéria (Rio de Janeiro. Online) instacron:RLAM Scopus-Elsevier Matéria (Rio de Janeiro), Volume: 15, Issue: 2, Pages: 291-298, Published: 2010 |
| بيانات النشر: | FapUNIFESP (SciELO), 2010. |
| سنة النشر: | 2010 |
| مصطلحات موضوعية: | Materials science, ECAP, Precipitation (chemistry), Scanning electron microscope, microstructure, Metallurgy, Alloy, General Physics and Astronomy, General Chemistry, engineering.material, Microstructure, Indentation hardness, law.invention, Optical microscope, law, Transmission electron microscopy, engineering, General Materials Science, Deformation bands, aluminum alloy |
| الوصف: | This work aimed to study the microstructural evolution of commercial aluminum alloy AA7050 in the solution treated condition (W) processed by equal channel angular pressing - ECAP. The analyses were made considering the effects of process parameters as temperature (Tamb and 150°C), processing route (A and B C) and number of passes. Optical microscopy (OM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used for microstructural characterization, and hardness tests for a preliminary assessment of mechanical properties. The results show that the refining of the microstructure by ECAP occurred by the formation of deformation bands, with the formation of dislocations cells and subgrains within these bands. The increase of the ECAP temperature led to the formation of more defined subgrains contours and intense precipitation of η phase in the form of spherical particles. The samples processed by Route B C present a more refined microstructure. |
| وصف الملف: | text/html |
| تدمد: | 1517-7076 |
| DOI: | 10.1590/s1517-70762010000200029 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c23a908c8733c5911c3c76510bf975e https://doi.org/10.1590/s1517-70762010000200029 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....0c23a908c8733c5911c3c76510bf975e |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15177076 |
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| DOI: | 10.1590/s1517-70762010000200029 |