Enhancing the Capillary Force of Binder-Jetting Printing Ti6Al4V and Mechanical Properties under High Temperature Sintering by Mixing Fine Powder
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. 3D Printing Processes
2.3. Characterization Methods
3. Results and Discussion
3.1. Principle of Capillary Infiltration of Polymer Binder for BJ3DP
3.1.1. Enhance Capillary Force of BJ3DP by Mixing Fine Powder
3.1.2. Compression Strength of the Green Body
3.2. The Appearance Morphology of the Sintered Samples
3.3. Relative Density and Shrinkage of the Sintered Samples
3.4. Microstructure of the Sintered Samples
3.5. Electron Microscopy and Elemental Analysis
3.6. Phase Analysis by XRD
3.7. Mechanical Properties
3.7.1. Microhardness
3.7.2. Compression and Tensile Tests
3.8. Lightweight Porous and Curved Structure for Ti6Al4V by BJ3DP
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Particle Size (μm) | Ti (wt%) | Al (wt%) | V (wt%) | C (wt%) | O (wt%) | N (wt%) |
---|---|---|---|---|---|---|
15–53 | Bal | 3.82 | 5.83 | 0.023 | 0.096 | 0.018 |
0–20 | Bal | 3.82 | 5.83 | 0.023 | 0.128 | 0.018 |
Sample Description | Sintering Temperature (°C) | Solid Volume Fraction (%) | Porosity (%) | Maximum Pore Size (μm) |
---|---|---|---|---|
Pure powder | 1260 °C | 82.0 ± 3.1 | 18.0 ± 3.8 | 188.5 ± 8.9 |
Pure powder | 1300 °C | 86.4 ± 1.6 | 13.6 ± 1.2 | 147.1 ± 5.7 |
Pure powder | 1340 °C | 89.5 ± 1.3 | 10.5 ± 2.1 | 132.8 ± 6.1 |
Pure powder | 1380 °C | 91.6 ± 1.1 | 8.4 ± 0.8 | 112.1 ± 5.4 |
Pure powder | 1420 °C | 93.2 ± 0.8 | 6.8 ± 0.7 | 117.2 ± 4.9 |
Mixed powder | 1260 °C | 90.5 ± 2.1 | 9.5 ± 2.0 | 128.7 ± 6.2 |
Mixed powder | 1300 °C | 92.2 ± 1.8 | 7.8 ± 1.5 | 109.7 ± 5.8 |
Mixed powder | 1340 °C | 93.8 ± 1.3 | 6.2 ± 0.5 | 92.5 ± 5.0 |
Mixed powder | 1380 °C | 94.9 ± 0.9 | 5.1 ± 1.0 | 62.5 ± 4.6 |
Mixed powder | 1420 °C | 97.1 ± 0.6 | 2.9 ± 0.2 | 35.1 ± 3.3 |
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Tang, Y.; Huang, Z.; Yang, J.; Xie, Y. Enhancing the Capillary Force of Binder-Jetting Printing Ti6Al4V and Mechanical Properties under High Temperature Sintering by Mixing Fine Powder. Metals 2020, 10, 1354. https://doi.org/10.3390/met10101354
Tang Y, Huang Z, Yang J, Xie Y. Enhancing the Capillary Force of Binder-Jetting Printing Ti6Al4V and Mechanical Properties under High Temperature Sintering by Mixing Fine Powder. Metals. 2020; 10(10):1354. https://doi.org/10.3390/met10101354
Chicago/Turabian StyleTang, Yang, Zheguan Huang, Jianming Yang, and Yonglin Xie. 2020. "Enhancing the Capillary Force of Binder-Jetting Printing Ti6Al4V and Mechanical Properties under High Temperature Sintering by Mixing Fine Powder" Metals 10, no. 10: 1354. https://doi.org/10.3390/met10101354