Effects of In Situ TiB2 on the Microstructural Evolution, Mechanical Properties, and Friction Behavior of the Al-Si-Cu Alloys Processed by Laser Powder-Bed Fusion
Abstract
:1. Introduction
2. Materials and Experimental Procedures
2.1. Powder and Material Fabrication
2.2. Microstructure Characterization
2.3. Mechanical and Frictional Properties
3. Results
3.1. Densification Behavior
3.2. Phase Analysis
3.3. Microstructural Characterization
3.4. Mechanical Properties
3.5. Tribological Behavior
4. Discussion
4.1. Effect of In-Situ TiB2 Particles on Microstructural Evolution
4.2. Effect of In-Situ TiB2 Particles on Strengthening Mechanisms
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Alloy (wt.%) | Si | Cu | Mn | Mg | Ti | B | Al |
---|---|---|---|---|---|---|---|
Al8SiCu | 7.48 ± 0.03 | 1.42 ± 0.01 | 0.47 ± 0.01 | 0.40 ± 0.01 | 0.09 ± 0.02 | / | Bal. |
TiB2/Al8SiCu | 7.68 ± 0.03 | 1.40 ± 0.01 | 0.45 ± 0.01 | 0.39 ± 0.01 | 2.89 ± 0.02 | 1.24 ± 0.01 | Bal. |
Sample | Lattice Strain | Dislocation Density | Lattice Parameter |
---|---|---|---|
Al8SiCu | 2.87 × 10−3 | 8.53 × 1014 m−2 | 4.056 Å |
TiB2/Al8SiCu | 3.01 × 10−3 | 9.45 × 1014 m−2 | 4.066 Å |
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He, Z.; Wang, J.; Zhu, M.; Wen, T.; Yang, F.; Ji, S.; Zheng, J.; Shan, L.; Yang, H. Effects of In Situ TiB2 on the Microstructural Evolution, Mechanical Properties, and Friction Behavior of the Al-Si-Cu Alloys Processed by Laser Powder-Bed Fusion. Metals 2024, 14, 1015. https://doi.org/10.3390/met14091015
He Z, Wang J, Zhu M, Wen T, Yang F, Ji S, Zheng J, Shan L, Yang H. Effects of In Situ TiB2 on the Microstructural Evolution, Mechanical Properties, and Friction Behavior of the Al-Si-Cu Alloys Processed by Laser Powder-Bed Fusion. Metals. 2024; 14(9):1015. https://doi.org/10.3390/met14091015
Chicago/Turabian StyleHe, Zhongxue, Jianying Wang, Mengzhen Zhu, Tao Wen, Feipeng Yang, Shouxun Ji, Jianming Zheng, Ling Shan, and Hailin Yang. 2024. "Effects of In Situ TiB2 on the Microstructural Evolution, Mechanical Properties, and Friction Behavior of the Al-Si-Cu Alloys Processed by Laser Powder-Bed Fusion" Metals 14, no. 9: 1015. https://doi.org/10.3390/met14091015