Restraining effect of strontium on the crystallization of Mg 2Si phase during solidification in Al-Si-Mg casting alloys and mechanisms

Materials Science and Engineering: A

Volumn 358, Issue 1-2, 2003, Pages 164-170

  Hengcheng, Liao ^a   Yu, Sun ^a,b   Guoxiong, Sun ^a  

^a SOUTHEAST UNIVERSITY   (China)

^b YANCHENG INSTITUTE OF TECHNOLOGY   (China)

Author keywords

Al Si Mg alloy; Crystallization; Mg2Si; Strontium modification

Indexed keywords

CASTING; CRYSTALLIZATION; EUTECTICS; SOLIDIFICATION; STRONTIUM;

CASTING ALLOYS;

ALUMINUM ALLOYS;

CRYSTALLIZATION;

EID: 0142248079     PISSN: 09215093     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0921-5093(03)00276-4     Document Type: Article

References (16)

1. Liao Hengcheng, Ph.D thesis: Investigations on microstructure refinement and mechanical properties of near-eutectic Al-Si alloys, Southeast University, August, 2000.
2. Kulunk B. Zulian D.J. Applications for the strontium treatment of wrought and die-cast Al JOM 48 10 1996 60-63
3. Shu-zu Lu Hellawell A. Growth mechanisms of silicon in Al-Si alloys J. Cryst. Growth 73 1985 316-328
4. Shu-zu Lu Hellawell A. The mechanism of silicon modification in aluminum silicon alloys: impurity induced twinning Metall. Trans. A. 18A 10 1987 1721-1732
5. Pekguleryuz M.O. Gruzleski J.E. Conditions for strontium master alloy addition to A356 melts AFS Trans. 96 1988 55-64
6. Sigworth G.K. Theoretical and practice aspects of the modification of Al-Si alloys AFS Trans. 91 1983 7-16
7. Chai G. Backrud L. Factors affecting modification of Al-Si alloys by adding Sr-containing master alloys AFS Trans. 100 1992 847-854
8. Ravi M. Pillai U.T.S. Pai B.C. et-al. A study of the influence of mischmetal additions to Al-7Si-0.3Mg (LM25/356) alloy Metall. Mater. Trans. A 27A 5 1996 1283-1292
9. Haque M.M. Effects of strontium on the structure and properties of aluminium-silicon alloys J. Mater. Processing Tech. 55 1995 193-198
10. Hengcheng Liao Yi Din Guoxiong Sun Investigations of the effect of strontium on the growth of dendritic α in near-eutectic Al-Si alloys Acta Metall. Sin. 38 3 2002 245-249
11. Sun Guoxiong, Liao Hengcheng, Pan Ye, Microstructure and mechanical properties of near-eutectic Al-Si alloy modified with strontium, The First International Conference on the Science of Casting and Solidification (SoCaS), Brasov, Romania, 28-31 May, 2001, pp. 61-69.
12. Hengcheng Liao Yu Sun Guoxiong Sun Correlation between mechanical properties and amount of dendritic α-Al phase in as-cast near-eutectic Al-11.6%Si alloys modified with strontium Mater. Sci. Eng. A 335 2002 62-66
13. Mondolfo L.F. Microstructure and Properties of Aluminum Alloys 1988 504-514 Metallurgy Industry Press Beijing
14. Dowling J.M. Corbett J.M. Kerr H.W. Growth mechanisms of modified eutectic silicon J. Mater. Sci. 22 1987 4504-4513
15. Shamsuzzoha M. Hogan L.M. The crystal morphology of fibrous silicon in strontium-modified Al-Si eutectic Philos. Mag. A 54 4 1986 459-477
16. Shamsuzzoha M. Hogan L.M. Berry J.T. Effects of modifying agents on crystallography and growth of silicon phase in Al-Si casting alloys AFS Trans. 101 1993 999-1005