Effects of Sintering Temperature on Densification, Microstructure and Mechanical Properties of Al-Based Alloy by High-Velocity Compaction
Abstract
:1. Introduction
2. Experimental Details
3. Results and Discussion
3.1. Effect of Sintering Temperature on Densification
3.2. Microstructure and Phases Constitution
3.3. Mechanical Property
3.4. Fractography
4. Conclusions
- For the green of Al-based alloy by HVC, the sintered density increased with the temperature increasing. When the compaction energy was 1885 J, the samples sintered at 640 °C with a relative density of 98%.
- XRD of the sintered sample displayed the phases Al13Fe4, Al13Cr2, Al3Ti, AlN, AlCr2. TEM further verified the existence of intermetallic compounds Al13Cr2, Al3Ti, and Al13Fe4.
- The tensile properties of the sintered samples at 640 °C reached the maximum, UTS 222 MPa, YS 160 MPa, and the maximum δ 2.6% when the sample was compacted by the energy 1885 J.
- Fracture mechanism of the Al-based alloy was ductility fracture.
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Element | Phase | Al | Ti | Cr | Fe |
---|---|---|---|---|---|
Atomic% | 1 | 87.94 | 2.08 | 6.88 | 3.10 |
Atomic% | 2 | 77.52 | 0.37 | 0.75 | 21.36 |
Atomic% | 3 | 77.64 | 21.41 | 0.74 | 0.21 |
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Yuan, X.; Qu, X.; Yin, H.; Feng, Z.; Tang, M.; Yan, Z.; Tan, Z. Effects of Sintering Temperature on Densification, Microstructure and Mechanical Properties of Al-Based Alloy by High-Velocity Compaction. Metals 2021, 11, 218. https://doi.org/10.3390/met11020218
Yuan X, Qu X, Yin H, Feng Z, Tang M, Yan Z, Tan Z. Effects of Sintering Temperature on Densification, Microstructure and Mechanical Properties of Al-Based Alloy by High-Velocity Compaction. Metals. 2021; 11(2):218. https://doi.org/10.3390/met11020218
Chicago/Turabian StyleYuan, Xianjie, Xuanhui Qu, Haiqing Yin, Zaiqiang Feng, Mingqi Tang, Zhenwei Yan, and Zhaojun Tan. 2021. "Effects of Sintering Temperature on Densification, Microstructure and Mechanical Properties of Al-Based Alloy by High-Velocity Compaction" Metals 11, no. 2: 218. https://doi.org/10.3390/met11020218