Modeling of Dynamic Recrystallization Behavior of As-Extruded AM50 Magnesium Alloy during Hot Compression by a Cellular Automaton Method
Abstract
:1. Introduction
2. Materials and Testing Procedure
3. Model Description
3.1. Evolution Modeling of Dislocation Density
3.2. Nucleation
3.3. Grain Growth
4. Simulation Procedures
4.1. Cell Dimension Model and State Variable Setting
4.2. CA Performing Formulation
4.3. Material Parameters of CA Simulation
5. Results and Discussion
6. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Qb/kJ mol−1 | µ/MPa | b/m | δD0b/m3s−1 | m | C | v |
---|---|---|---|---|---|---|
145.425 | 175,000 | 3.2 × 10−10 | 1 × 10−13 | 0.75 | 1.2 × 1010 | 0.32 |
Temperature/°C | Strain Rate/s−1 | Average Grain Size/μm | Error (%) | |
---|---|---|---|---|
Experiment | CA Simulated | |||
250 | 0.1 | 7.5 | 7.8 | 4.00 |
350 | 0.001 | 6.6 | 6.4 | 3.03 |
350 | 0.1 | 5.1 | 4.9 | 3.92 |
350 | 10 | 6.8 | 6.2 | 8.82 |
450 | 0.1 | 8.5 | 8.7 | 2.35 |
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Shu, D.; Wang, J.; Jiang, M.; Chen, G.; Lu, L.; Zhang, H. Modeling of Dynamic Recrystallization Behavior of As-Extruded AM50 Magnesium Alloy during Hot Compression by a Cellular Automaton Method. Metals 2021, 11, 75. https://doi.org/10.3390/met11010075
Shu D, Wang J, Jiang M, Chen G, Lu L, Zhang H. Modeling of Dynamic Recrystallization Behavior of As-Extruded AM50 Magnesium Alloy during Hot Compression by a Cellular Automaton Method. Metals. 2021; 11(1):75. https://doi.org/10.3390/met11010075
Chicago/Turabian StyleShu, Dayu, Jing Wang, Menghao Jiang, Gang Chen, Liwei Lu, and Hongming Zhang. 2021. "Modeling of Dynamic Recrystallization Behavior of As-Extruded AM50 Magnesium Alloy during Hot Compression by a Cellular Automaton Method" Metals 11, no. 1: 75. https://doi.org/10.3390/met11010075