Szczegóły publikacji
Opis bibliograficzny
Strain-induced microstructural and precipitation behavior of Al-Mg-Si-Mn alloys: effects of Si content under controlled thermomechanical conditions / Oleksandr LYPCHANSKYI, Nikolaos Rigas, Łukasz Rogal, Karol JANUS, Lidia Lityńska-Dobrzyńska, Grzegorz Korpała, Thomas Lampke, Marion Merklein, Ulrich Prahl // Journal of Materials Science & Technology (Shenyang) ; ISSN 1005-0302 . — 2026 — vol. 270, s. 68-85. — Bibliogr. s. 84-85, Abstr. — Publikacja dostępna online od: 2026-01-19. — O. Lypchanskyi - dod. afiliacja: Institute of Materials Science and Engineering, Chemnitz University of Technology, Germany
Autorzy (9)
- AGHLypchanskyi Oleksandr
- Rigas Nikolaos
- Rogal Łukasz
- AGHJanus Karol
- Lityńska-Dobrzyńska Lidia
- Korpała Grzegorz
- Lampke Thomas
- Merklein Marion
- Prahl Ulrich
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 165984 |
|---|---|
| Data dodania do BaDAP | 2026-03-09 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.jmst.2026.01.016 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Journal of Materials Science & Technology (Shenyang) |
Abstract
This study investigates the microstructural evolution of Al-Mg-Si-Mn alloys, focusing on the influence of Si content on mechanical properties, deformation mechanisms, and precipitate evolution during high-temperature tensile testing. Tensile tests were performed at 200, 250, 300, and 350 °C with strain rates of 0.1, 1, and 10 %/s, showing significant variations in mechanical response as a function of Si content. Microstructural characterization was performed using electron backscatter diffraction, energy-dispersive X-ray spectrometry, and a transmission electron microscope to analyze deformation mechanisms, precipitate evolution, and texture formation. The results show a progressive decrease in tensile strength and yield strength with increasing deformation temperature, with the most pronounced reduction occurring at 350 °C in alloys with higher Si content. This increased Si level promotes the strengthening of the Copper texture while progressively suppressing the Cube texture during deformation at elevated temperatures. At 200 °C, deformation bands are formed primarily by interaction with dislocations, while precipitates drive deformation band formation by effectively impeding dislocation motion. Resolved shear stress analysis indicates a direct influence on the initiation and progression of discontinuous dynamic recrystallization (DDRX), with higher Si levels promoting more pronounced DDRX. Deformation at elevated temperatures of 300 and 350 °C enhances dynamic recrystallization and accelerates continuous dynamic recrystallization, leading to increased grain boundary formation and a reduction in deformation band density. Furthermore, the evolution of β′, B′, and U1 phases at 300 °C and 0.1 %/s strain rate highlights the heterogeneous nucleation and growth mechanisms of precipitates. These results underscore the critical role of Si content in controlling the mechanical response and microstructural evolution of Al-Mg-Si-Mn alloys, providing valuable insights for optimizing alloy design and performance at elevated temperatures.
