Effects of Powder Preparation and Sintering Temperature on Properties of Spark Plasma Sintered Ti-48Al-2Cr-8Nb Alloy
Abstract
:1. Introduction
2. Materials and Methods
3. Results and Discussion
3.1. Characterization of the As-Atomized SP Powder and MP Powder
3.2. Effect of Sintering Temperature on Density and Vickers Hardness of Ti-48Al-2Cr-8Nb Alloy
3.3. Bending Strength and Fracture Mechanism
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Temperature (°C) | Time (h) | Density (g/cm3) | Size (μm) | Vickers Hardness (HV) | Troom Bending Strength (MPa) | Microstructure |
---|---|---|---|---|---|---|
1200 | 0 | 4.080 | / | 252.6 | 440.5 | Grain phase |
1200 | 12 | 4.250 | 15–20 | 324.6 | 635 | Grain phase |
1250 | 0 | 4.181 | 10–15 | 287.9 | 644 | Grain phase |
1250 | 12 | 4.254 | 3–6 | 333.2 | 1025 | Grain phase |
1300 | 0 | 4.226 | 8–13 | 290.5 | 598 | Grain phase |
1300 | 12 | 4.239 | 5–8 | 331.5 | 1018 | Duplex (less lamellar) |
1350 | 0 | 4.244 | 200–300 | 286.5 | 485 | Duplex (more lamellar) |
1350 | 12 | 4.252 | 50–100 | 326.4 | 494 | Near lamellar |
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Wang, Z.; Sun, H.; Du, Y.; Yuan, J. Effects of Powder Preparation and Sintering Temperature on Properties of Spark Plasma Sintered Ti-48Al-2Cr-8Nb Alloy. Metals 2019, 9, 861. https://doi.org/10.3390/met9080861
Wang Z, Sun H, Du Y, Yuan J. Effects of Powder Preparation and Sintering Temperature on Properties of Spark Plasma Sintered Ti-48Al-2Cr-8Nb Alloy. Metals. 2019; 9(8):861. https://doi.org/10.3390/met9080861
Chicago/Turabian StyleWang, Zhenhua, Haoxuan Sun, Yulei Du, and Juntang Yuan. 2019. "Effects of Powder Preparation and Sintering Temperature on Properties of Spark Plasma Sintered Ti-48Al-2Cr-8Nb Alloy" Metals 9, no. 8: 861. https://doi.org/10.3390/met9080861