An Investigation on the Overheating of A357 Aluminum Alloy

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Abstract:

The structure and properties of A357 aluminum alloy with different second dendrite arm spacing (SDAS) in different situations of overheating were investigated. The results indicate that serious overheating characteristic structure takes on compound melting ball, crystal separating phase and overheating triangle section; The overheating level of A357 alloy raises with solution temperature increasing; The mechanical properties decrease with the overheating level increasing; The overheating temperature of casting increases as the SDAS decreases, the regression equations of the correlation between SDAS and overheating temperature is as follows: T = 575.46-0.213SDAS; Optimum solution temperature could be selected for A357 alloy with different SDAS depending on supercritical solution region proposed in this paper.

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Periodical:

Advanced Materials Research (Volumes 97-101)

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1049-1052

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March 2010

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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[1] W.C. Li, Y.Z. Zou, J.M. Zeng and W.K. Gan: Foundry Vol. 57 (2008), p.565 (in Chinese).

Google Scholar

[2] C.S. Lim, A.J. Clegg and N.L. Loh: J. Mater. Process. Technol. Vol. 70 (1997), p.99.

Google Scholar

[3] M.C. Flemings, T. Z. Kattamis and B.P. Bardes: AFS Trans. Vol. 99 (1991), p.501.

Google Scholar

[4] S. Shivkumar, S. Ricci Jr, C Keller and D Apelian: J. Heat Treat. Vol. 8 (1990), p.63.

Google Scholar

[5] N. Wan and X.S. Xie: Special Casting & Nonferrous Alloys Vol. 25(2005), p.378 (in Chinese).

Google Scholar

[6] Y.M. Wang, Z. W Dong and H.K. Long: Hebei metall. Vol. 5 (1995), p.38 (in Chinese).

Google Scholar

[7] Y. Zhao, L. Chen and Y. Lei: Hot Working Technol. Vol. 11(2004), p.27 (in Chinese).

Google Scholar

[8] X.M. Chen, R.G. Song, Y. Zhang and J. Li: Light Alloy Fabric. Technol. Vol. 37 (2009), p.48 (in Chinese).

Google Scholar

[9] S.Z. Wang and J.X. Wan: J. Mater. Eng. Vol. 1 (1992), p.25 (in Chinese).

Google Scholar