Role of Al in the Solution Strengthening of Mg–Al Binary Alloys
Abstract
:1. Introduction
2. Materials and Methods
3. Results and Discussion
4. Conclusions
- Microstructure of as-extruded Mg–Al alloys has been refined and the average grain size is related to the concentration of aluminum within certain limits. Moreover, the texture of as-extruded Mg–Al alloys is in a similar situation as well.
- For Mg–xAl (x = 1, 2, 3, 4) alloys, yield strength increases from 142 MPa to 160 MPa, and ultimate tensile strength rises from 225 MPa to 251 MPa. And the fracture elongation of Mg–3Al reaches the maximum of 21.3% among four Mg–Al alloys.
- The results of VPSC simulation match well with the experimental data. The simulation results show that basal slip plays a decisive part in deformation mechanism in Mg alloys.
5. Patents
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Alloys | Compositions (wt.%) | TYS (MPa) | UTS (MPa) | FE (%) |
---|---|---|---|---|
Mg | Mg | 75 ± 0.5 | 182 ± 0.8 | 15.1 ± 0.2 |
Mg–1Al | Mg–1.06Al | 142 ± 1.7 | 225 ± 1.2 | 17.1 ± 0.6 |
Mg–2Al | Mg–1.99Al | 151 ± 0.9 | 230 ± 0.9 | 20.4 ± 0.8 |
Mg–3Al | Mg–3.07Al | 156 ± 0.8 | 240 ± 0.5 | 21.3 ± 0.9 |
Mg–4Al | Mg–3.96Al | 160 ± 1.2 | 251 ± 0.8 | 20.8 ± 0.9 |
Specimens | Mode | τ0/MPa | τ1/MPa | θ0/MPa | θ1/MPa |
---|---|---|---|---|---|
Mg | Basal | 5 | 30 | 800 | 30 |
Prismatic | 150 | 10 | 1200 | 0 | |
Pyramidal <a> | 245 | 10 | 300 | 0 | |
Pyramidal <c + a> | 185 | 10 | 100 | 0 | |
Extension twin | 80 | 100 | 2500 | 0 | |
Contraction twin | 275 | 300 | 1500 | 0 | |
Mg–2Al | Basal | 18 | 30 | 1000 | 70 |
Prismatic | 180 | 10 | 1200 | 0 | |
Pyramidal <a> | 245 | 65 | 300 | 0 | |
Pyramidal <c + a> | 205 | 70 | 100 | 0 | |
Extension twin | 75 | 170 | 2500 | 0 | |
Contraction twin | 275 | 300 | 1500 | 0 | |
Mg–4Al | Basal | 22 | 30 | 1000 | 80 |
Prismatic | 200 | 10 | 1200 | 0 | |
Pyramidal <a> | 245 | 65 | 300 | 0 | |
Pyramidal <c + a> | 225 | 70 | 100 | 0 | |
Extension twin | 70 | 170 | 2500 | 0 | |
Contraction twin | 275 | 300 | 1500 | 0 |
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Liu, T.; Liu, Y.; Xiao, L.; Zhou, S.; Song, B. Role of Al in the Solution Strengthening of Mg–Al Binary Alloys. Metals 2022, 12, 84. https://doi.org/10.3390/met12010084
Liu T, Liu Y, Xiao L, Zhou S, Song B. Role of Al in the Solution Strengthening of Mg–Al Binary Alloys. Metals. 2022; 12(1):84. https://doi.org/10.3390/met12010084
Chicago/Turabian StyleLiu, Tingting, Yanglu Liu, Lu Xiao, Shibo Zhou, and Bo Song. 2022. "Role of Al in the Solution Strengthening of Mg–Al Binary Alloys" Metals 12, no. 1: 84. https://doi.org/10.3390/met12010084