Study of the Microstructure and Ring Element Segregation Zone of Spray Deposited SiCp/7055Al
Abstract
:1. Introduction
2. Experiment
3. Results and Analysis
3.1. Metallographic Microstructure Analysis
3.2. Microstructure Analysis
3.3. Mechanical Properties
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Element | Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Zr | Al |
---|---|---|---|---|---|---|---|---|---|---|
Content (%) | 0.1 | 0.15 | 2.0–2.6 | 0.05 | 1.8–2.3 | 0.4 | 7.6–8.4 | 0.06 | 0.08–0.25 | Other |
Experimental Parameters | Numerical Value | Unit |
---|---|---|
Atomization temperature | 750~850 | °C |
Nebulizer pressure | 0.6~0.8 | MPa |
Diameter of sedimentary disk | 530 | mm |
Matrix rotation speed | 150~250 | r/min |
Powder-feeding pressure | 0.1~0.2 | MPa |
Number | Second Phase | Al | Zn | Mg | Cu | Si | C |
---|---|---|---|---|---|---|---|
1 | Al matrix | 91.1 | 6.4 | 0.9 | 2.5 | 0 | 0 |
2 | Al matrix near SiC | 75.7 | 5.7 | 0 | 1.2 | 7.3 | 10.1 |
3 | Al matrix far from SiC | 84.6 | 5.5 | 0 | 1.3 | 0 | 8.6 |
4 | SiC | 0 | 0 | 0 | 0 | 67.4 | 32.6 |
5 | AlMgCu phase | 46.5 | 3.6 | 15 | 9.8 | 18.2 | 0 |
6 | AlCu phase | 59.8 | 3 | 0 | 36 | 1.2 | 0 |
Test Location | Si | Mg | Cu | Others |
---|---|---|---|---|
Phases of Si, Mg, Cu | 21.77 | 19.65 | 12.80 | Bal. |
Matrix phase in the precipitation zone | 1.60 | 1.50 | 1.57 | Bal. |
Matrix phase | 0.1 | 1.8~2.3 | 2.0~2.6 | Bal. |
Position | Hardness/HV |
---|---|
Al matrix | 8.44 HV0.05 |
SiC particle | 10.20 HV0.05 |
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Yang, H.; She, X.-w.; Tang, B.-b.; Li, C.-m.; Jiang, X.-q. Study of the Microstructure and Ring Element Segregation Zone of Spray Deposited SiCp/7055Al. Materials 2019, 12, 1299. https://doi.org/10.3390/ma12081299
Yang H, She X-w, Tang B-b, Li C-m, Jiang X-q. Study of the Microstructure and Ring Element Segregation Zone of Spray Deposited SiCp/7055Al. Materials. 2019; 12(8):1299. https://doi.org/10.3390/ma12081299
Chicago/Turabian StyleYang, Hao, Xin-wei She, Bin-bin Tang, Chun-mei Li, and Xian-quan Jiang. 2019. "Study of the Microstructure and Ring Element Segregation Zone of Spray Deposited SiCp/7055Al" Materials 12, no. 8: 1299. https://doi.org/10.3390/ma12081299