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Effects of High Density Ultrasonic Field Coupling on the Microstructures and Properties of Al-Si Alloy

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Abstract:

The effects of high density ultrasonic field coupling on the microstructures and properties of Al-12Si alloy were investigated. It is shown that when the melt undergoes ultrasonic coupling processing prior to solidification, the nucleation rate of liquid phase can be raised to make α(Al) dendrite transform towards near equiaxed grains, the growth of Si phase is restrained and eutectic Si microstructure is refined due to acoustic streaming effect and thermal mechanism; When the melt undergoes ultrasonic coupling processing during the melt solidification, large degree of supercooling is produced in the liquid phase in the solidification interface front edge to reduce the critical radius of crystal nucleus and critical work of nucleation and break up, rupture by melting and refine the Si phase to improve obviously the strength of Al-12Si alloy due to its cavitation effect, acoustic streaming action and heat undulation; The crushing effect of ultrasonic coupling on Si phase occurs mainly during the crystallizing solidification and threshold sound intensity exists.

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Periodical:

Advanced Materials Research (Volumes 291-294)

Pages:

1981-1988

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.291-294.1981

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Online since:

July 2011

Authors:

Ying Long Li, Hua Ding, Fu Rong Cao

Keywords:

Al-12Si Alloy, High Density Ultrasonic Field Coupling, Microstructure and Property, Solidification Behavior

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References

[1] G.I. Eskin,Adv. Perform. Mater Vol. 4(1997) , pp.223-232

Google Scholar

[2] G. I. Eskin, Ultrason. Sonochem Vol. 8(2001) , pp.319-325

Google Scholar

[3] G. M. Swallowe, J.E. Field and C. S. Rees, Acta. Metall Vol. 373(1989) , pp.961-967

Google Scholar

[4] H.B. Xu, X.G. Jiang and T. Thomas, Mater. Lett Vol. 58(2004) , pp.3669-3673

Google Scholar

[5] J.H.Xu, T.T. Meek and Q. Han, Mater.Lett Vol. 59(2005) , pp.190-193

Google Scholar

[6] O. V. Abramov, Ultrason Vol. 25(1987) , pp.73-82

Google Scholar

[7] G. I.Eskin and D.G. Eskin, Ultrason. Sonochem Vol. 10(2003) , pp.297-301

Google Scholar

[8] T. Takahashi, Light Metals Vol.32 (1982) , pp.511-516

Google Scholar

[9] G. H.Qi, X.F. Liu and Z.Q. Yang, Mater. Sci. Technol Vol. 9(2001) , pp.211-214

Google Scholar

[10] Y.Feng, Chongqing University doctoral dissertation, (2008) , p.79

Google Scholar

[11] V.Abramov, O.Abramov and V.Bulgakov, Mater. Lett Vol. 37(1998) , pp.27-34

Google Scholar

[12] M.M. Susan, R.C. Baciu and P.G. Dumitras,Surf. Eng. Appl. Electrochem Vol. 43(2007) , pp.303-309

Google Scholar

[13] X.F. Bian and W. M.Wang, Mater. Lett Vol.44(2000) , pp.54-58

Google Scholar

[14] W.D.Xu, Sci, China Ser A-Math Vol. 32(1989) , pp.351-360

Google Scholar

[15] K. Kobayashi and L.M. Hogan,J. Mat. Sci Vol. 20(1985) , p.1961- (1975)

Google Scholar

[16] Y.Yang, J.Lan and X.C.Li, Mater. Sci.& Eng Vol. A380(2004) , pp.378-383

Google Scholar

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