| Autor: |
Zhe Yu, He Li, Pengzhan Cai, Xiaoxiao Fu, Zongqiang Feng, Ling Zhang, Jinsan Wang, Namin Xiao |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Journal of Materials Research and Technology, Vol 23, Iss , Pp 2010-2019 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2238-7854 |
| DOI: |
10.1016/j.jmrt.2023.01.140 |
| Popis: |
In this study, the evolution of Ω plates during artificial aging and the effect of peak-aging treatment and over-aging treatment on the thermal stability of Al–Cu–Mg–Ag alloy were investigated by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). It was shown that the diameter distribution of Ω plates in the over-aged sample was narrower compared to the peak-aged one, which suppressed the Ostwald ripening in the over-aged sample. In addition, the Ω plates in the over-aged sample has a larger aspect ratio than that in the peak-aged sample, which makes it more likely for the soft impinge to inhibit the growth of the Ω plates. Quantitative analysis showed that after heat exposure, Ω plates in the over-aged sample contributed more to the yield strength compared to peak-aged sample. This study shows that better thermal stability can be obtained in exchange for a little loss of room temperature mechanical properties, improving the application potential of Al–Cu–Mg–Ag alloys. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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