Microstructure and Properties of Mg-Al-Ca-Mn Alloy with High Ca/Al Ratio Fabricated by Hot Extrusion
Abstract
:1. Introduction
2. Experimental Procedure
3. Results and Discussion
3.1. Results
3.2. Discussion
3.2.1. Microstructure Characterization
3.2.2. Tensile Strength
3.2.3. Creep and Superplasticity
3.2.4. Flame Retardation and Corrosion Resistance
4. Conclusions
Author Contributions
Funding
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Al | Ca | Mn | Fe | Mg | |
---|---|---|---|---|---|
AX33 | 3.20 | 3.30 | 0.70 | <0.001 | Bal. |
AX44 | 4.20 | 4.30 | 0.70 | <0.001 | Bal. |
AX55 | 5.10 | 5.20 | 0.70 | <0.001 | Bal. |
Experiment Conditions | Units | AX33 | AX44 | AX55 | |
---|---|---|---|---|---|
σb/σs/δ | RT | MPa/MPa/% | 324/287/6 | 350/318/5 | 339/315/4 |
σb/σs/δ | 423 K | MPa/MPa/% | 201/150/16 | 210/153/14 | 187/152/13 |
σb/σs/δ | 448 K | MPa/MPa/% | 175/143/32 | 194/154/17 | 151/128/15 |
Creep total-elongation | 423 K 60 MPa 100 h | % | 1.03 | 0.98 | 0.92 |
Secondary creep rate | 423 K 60 MPa 100 h | ×10−8 s−1 | 2.05 | 1.95 | 1.98 |
423 K 70 MPa 100 h | ×10−8 s−1 | 3.04 | 2.89 | 2.68 | |
423 K 90 MPa 100 h | ×10−8 s−1 | 32.6 | 27.2 | 26.5 | |
superplasticity elongation-to-failure δ/σb | 673 K 3.6 × 10−4 s−1 | %/MPa | 312/4.3 | 384/8.3 | 602/9.5 |
673 K 3.6 × 10−3 s−1 | %/MPa | 272/9.8 | 311/18.2 | 449/18.3 | |
623 K 3.6 × 10−4 s−1 | %/MPa | 213/17.9 | 263/20.3 | 352/20.5 | |
623 K 3.6 × 10−3 s−1 | %/MPa | 139/28.8 | 209/34.1 | 229/41.9 | |
Ignition temperature | in air | k | 1292 | 1313 | 1344 |
Corrosion rate | 298 K in 5% NaCl aq | g·mm−2·h−1 | 1.3125 | 1.4861 | 2.2492 |
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Chu, A.; Zhao, Y.; ud-din, R.; Hu, H.; Zhi, Q.; Wang, Z. Microstructure and Properties of Mg-Al-Ca-Mn Alloy with High Ca/Al Ratio Fabricated by Hot Extrusion. Materials 2021, 14, 5230. https://doi.org/10.3390/ma14185230
Chu A, Zhao Y, ud-din R, Hu H, Zhi Q, Wang Z. Microstructure and Properties of Mg-Al-Ca-Mn Alloy with High Ca/Al Ratio Fabricated by Hot Extrusion. Materials. 2021; 14(18):5230. https://doi.org/10.3390/ma14185230
Chicago/Turabian StyleChu, Aimin, Yuping Zhao, Rafi ud-din, Hairong Hu, Qian Zhi, and Zerui Wang. 2021. "Microstructure and Properties of Mg-Al-Ca-Mn Alloy with High Ca/Al Ratio Fabricated by Hot Extrusion" Materials 14, no. 18: 5230. https://doi.org/10.3390/ma14185230