Modeling of Isothermal Dissolution of Precipitates in a 6061 Aluminum Alloy Sheet during Solution Heat Treatment
Abstract
:1. Introduction
2. Models and Methods
2.1. Dissolution Model
- The model was derived on the following assumptions:
- The precipitates are all spherical, with the same size, and uniformly distributed in the matrix.
- The composition and proportion of elements of the precipitates remain unchanged during the whole dissolution process.
- The solubility and diffusion coefficient of each element are not affected by other elements, concentration, and distance.
- All the precipitates are located within the grains, regardless of the dissolution of the precipitates at the grain boundary and the diffusion across the grain boundary.
- The dissolution process is isothermal.
- The precipitate dissolves in a spherical space, and there is only one precipitate in this space.
2.2. Model Discretization and Mobile Nodes Method
2.3. Calculation Process
3. Simulations and Experiments
3.1. Simulation Parameters
3.2. Verification Experiments
4. Results and Discussion
4.1. Modeling of Precipitates’ Dissolution
4.2. Verification Experimental Results
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Mg | Si | Mn | Cu | Fe | Cr | Ni | Zn | Ti | Al |
---|---|---|---|---|---|---|---|---|---|
1.104 | 0.676 | 0.078 | 0.150 | 0.423 | 0.165 | 0.006 | 0.210 | 0.027 | Remain |
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Liu, Y.; Fang, D.; Zhu, B.; Wang, Y.; Li, S.; Zhang, Y. Modeling of Isothermal Dissolution of Precipitates in a 6061 Aluminum Alloy Sheet during Solution Heat Treatment. Metals 2021, 11, 1234. https://doi.org/10.3390/met11081234
Liu Y, Fang D, Zhu B, Wang Y, Li S, Zhang Y. Modeling of Isothermal Dissolution of Precipitates in a 6061 Aluminum Alloy Sheet during Solution Heat Treatment. Metals. 2021; 11(8):1234. https://doi.org/10.3390/met11081234
Chicago/Turabian StyleLiu, Yong, Dongyu Fang, Bin Zhu, Yilin Wang, Shiqi Li, and Yisheng Zhang. 2021. "Modeling of Isothermal Dissolution of Precipitates in a 6061 Aluminum Alloy Sheet during Solution Heat Treatment" Metals 11, no. 8: 1234. https://doi.org/10.3390/met11081234