We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Microstructure Optimization and Comprehensive Property Improvement of Al-4.47Zn-2.13Mg-1.2Cu Alloy by Non-isothermal Aging Treatment.
- Authors
Liu, X. Y.; Wang, C. C.; Wang, X.; Zhao, Z. J.; Wu, M.; Huang, J. C.; Huang, Z. H.
- Abstract
In order to thoroughly explore the relationship between precipitation and mechanical behavior in a precipitation-strengthened Al-4.47Zn-2.13Mg-1.2Cu wrought alloy plate under non-isothermal aging treatment (NIA), performance testing and transmission electron microscopy have been conducted. For the heating aging treatment, the mixture of the Guinier–Preston zone and η′ and η precipitates distribute uniformly everywhere with a narrow precipitate-free zone (PFZ) at the grain boundaries. The yield strength, ultimate tensile strength, and elongation of the Al alloy after (100–200°C, 20°C/h) were increased by 6.6%, 12.8%, and 9% as compared with those samples after T6 treatment. Because the bulky precipitation with a wider PFZ under the cooling aging treatment was obtained, the strength of the alloy was slightly lower. Meanwhile, the time spent on NIA can be decreased by about 70% compared that for T6 treatment. Current results indicate that NIA could improve the mechanical property and production efficiency with less energy consumption.
- Subjects
TENSILE strength; ALLOY plating; TRANSMISSION electron microscopy; ALLOYS; CRYSTAL grain boundaries; CRYSTALLIZATION
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2020, Vol 72, Issue 4, p1540
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-019-03809-w