Abstract
The 2024/3003 aluminum gradient alloys are prepared by semi-continuous casting. The influences of throttle bore diameter of embedded nozzle and temperature of internal melt on composition distribution, macrostructure, hardness are analyzed, and the stability of gradient distribution of composition, macrostructure and hardness along the axial direction of the ingot is also studied. The results show that diffe-rent composition profiles can be achieved by adjusting the processing parameters; the volume fraction of inner alloy in the ingot can be increased by enlarging the throttle bore diameter and elevating the temperature of inner melt; quasi-steady solidification can be realized within 20 s during cast processing, and consistent quality ingot is obtained by controlling the casting speed and liquid height of inner melt.
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References
Sasaki M, Hirai T. Fabrication and properties of functionally gradient materials[J]. J Ceram Soc Japan, 1991, 99(10): 1002–1013.
Bishop A, Lin C Y, Nava Yavaratnam M. A functionally gradient material produced by a powder metallurgical process[J]. J Mater Sci Letter, 1993, 12(19): 1516–1518.
Nabih Cherradi, Akira Kawasaki, Michael Gasik. Worldwide trends in functional gradient materials research and development[J]. Composites Engineering, 1994, 4(8): 883–894.
Watanabe R, Kawasaki A. Development of functionally gradient materials via powder metallurgy[J]. J Jap Soc Powder Metallurgy, 1992, b(39): 279–286.
LI Yao-tian. Study on functional gradient material and its application[J]. Metallic Functional Materials (in Chinese), 2000, 7(4): 15–23.
XU Zhi-mou, ZHEN Jia-shen, ZHANG Lian-meng. Current status and future directions for research on new type FGM[J]. Materials Review (in Chinese), 2000, 14(4): 13–15.
LI Ke-ping, ZHANG Tong-jun. Present status and prospect of the study on the new type functionality gradient material (FGM)[J]. Materials Review (in Chinese), 1996, 10(3): 11–15.
Takeuchi E, Zeze M, Tanaka H, et al. Novel continuous casting process for clad steel slabs with level dc magnetic field[J]. Ironmaking and Steelmaking, 1997, 24(3): 257–263.
JIA Fei, JIN Jun-e, QI Feng. Some new continuous casting technologies using electromagnetic forces[J]. Materials Review (in Chinese), 2001, 15(4): 18–21.
ZHANG Wei-wen, ZHU Cang-shan, WEI Xing-zhao, et al. Double-stream-pouring technique for production of gradient materials by continuous casting [J]. Chinese Science Bulletin, 1998, 43(11): 911–914.
ZHANG Wei-wen, ZOU Gan-feng, DENG Chang-lin, et al. Investigation of production of gradient material by continuous casting[J]. ACTA Metallurgica Sinica (in Chinese), 1998, 34(6): 609–614.
Fady M N, Brian G T, Donald E H. Numerical study of turbulent flow through bifurcated nozzles in continuous casting[J]. Metallurgical and Materials Transactions B, 1995, 26B: 749–765.
LIN Bo-nian, WEI Zun-jie. Transfer theory of metal hot forming (in Chinese) [M]. Harbin: Harbin Institute of Technology Publishing House, 2000.
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Foundation item: The National Natural Science Foundation of China (No. 59905007); The Natural Science Foundation of Guangdong Province (No. 994250)
Biography of the first author: LI Yuan-yuan, professor, born in 1958, majoring in nonferrous metals, powder metallurgy.
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Li, Yy., Fei, J., Chen, Wp. et al. Preparation of 2024/3003 gradient materials by semi-continuous casting using double-stream-pouring technique. J Cent. South Univ. Technol. 9, 229–234 (2002). https://doi.org/10.1007/s11771-002-0033-z
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DOI: https://doi.org/10.1007/s11771-002-0033-z