The Study of A356 Alloy Rheo-Squeeze Casting Process

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Abstract:

In this paper, the castings of A356 alloy were made by the rheo-squeeze casting with slurry-making from the process of LSPSF. Experiments were designed to study the influence of three parameters in rheo-squeeze casting process, such as injection speed, mould preheating temperature and injection pressure, on castings performance. The results show that high-quality castings were produced with the injection speed of 0.5m/s ,the mould preheating temperature of 240°C, the injection pressure of 50MPa. The mechanical properties, such as the yield strength, tensile strength and elongation of the castings with T6 heat treatment are 241 MPa, 328MPa and 11.6%, respectively.

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Solid State Phenomena (Volume 256)

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270-275

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September 2016

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© 2016 Trans Tech Publications Ltd. All Rights Reserved

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[1] Luo S J, Keung W C, Kang Y L. Theory and application research development of semi-solid forming in China [J]. Transactions of Nonferrous Metals Society of China, 2010, 20(9): 1805-1814.

DOI: 10.1016/s1003-6326(09)60378-2

Google Scholar

[2] Kleiner S, Beffort O, Wahlen A, et al. Microstructure and mechanical properties of squeeze cast and semi-solid cast Mg–Al alloys [J]. Journal of Light Metals, 2002, 2(4): 277-280.

DOI: 10.1016/s1471-5317(03)00012-9

Google Scholar

[3] Cho W G, Kang C G. Mechanical properties and their microstructure evaluation in the thixoforming process of semi-solid aluminum alloys[J]. Journal of Materials Processing Technology, 2000, 105(3): 269-277.

DOI: 10.1016/s0924-0136(00)00577-x

Google Scholar

[4] FLEMINGS M C. Behavior of metal alloy in the semi-solid state [J]. Metall Trans A, 1991, 22(5): 957−981.

Google Scholar

[5] Fang X, Lü S, Zhao L, et al. Microstructure and mechanical properties of a novel Mg–RE–Zn–Y alloy fabricated by rheo-squeeze casting[J]. Materials & Design, 2016, 94: 353-359.

DOI: 10.1016/j.matdes.2016.01.063

Google Scholar

[6] Mao W M, Zheng Q, Zhu D P. Rheo-squeeze casting of semi-solid A356 aluminum alloy slurry[J]. Transactions of Nonferrous Metals Society of China, 2010, 20(9): 1769-1773.

DOI: 10.1016/s1003-6326(09)60372-1

Google Scholar

[7] Guo H M, Yang X J. Continuous fabrication of sound semi-solid slurry for rheoforming[C]/Solid State Phenomena. Trans Tech Publications, 2006, 116: 425-428.

DOI: 10.4028/www.scientific.net/ssp.116-117.425

Google Scholar

[8] Xubo L, Xiangjie Y, Hongmin G. On-line preparation technology for semi-solid slurry of aluminum alloy based on LSPSF (Low shearing pouring semi-solid forming) method [J]. Special Casting & Nonferrous Alloys, 2008, 10: 014.

Google Scholar

[9] Guo H M, Yang X J, Wang J X. Microstructure and mechanical properties of Al alloys by semi-solid processing with LSPSF technology[C]/Materials Science Forum. 2009, 628: 477-482.

DOI: 10.4028/www.scientific.net/msf.628-629.477

Google Scholar

[10] Guo H M, Yang X J, Wang J X. Pressurized solidification of semi-solid aluminum die casting alloy A356[J]. Journal of Alloys and Compounds, 2009, 485(1): 812-816.

DOI: 10.1016/j.jallcom.2009.06.083

Google Scholar

[11] Dai W, Wu S, Lü S, et al. Effects of rheo-squeeze casting parameters on microstructure and mechanical properties of AlCuMnTi alloy[J]. Materials Science & Engineering A, 2012, 538: 320-326.

DOI: 10.1016/j.msea.2012.01.051

Google Scholar

[12] Guo H M, Yang X J. Preparation of semi-solid slurry containing fine and globular particles for wrought aluminum alloy 2024[J]. Transactions of Nonferrous Metals Society of China, 2007, 17(4): 799-804.

DOI: 10.1016/s1003-6326(07)60177-0

Google Scholar