Effects of T6 heat treatment on the microstructure, tensile properties, and fracture behavior of the modified A356 alloys

Materials and Design

Volumn 36, Issue , 2012, Pages 243-249

  Zhu, Man ^a   Jian, Zengyun ^a   Yang, Gencang ^b   Zhou, Yaohe ^b  

^a XI'AN TECHNOLOGICAL UNIVERSITY   (China)

^b NORTHWESTERN POLYTECHNICAL UNIVERSITY   (China)

Author keywords

Fracture; Heat treatments; Microstructure

Indexed keywords

A356 ALLOYS; EUTECTIC SILICON; EUTECTIC SILICON PARTICLES; FRACTURE BEHAVIOR; FRACTURE MECHANISMS; FRACTURE PROCESS; MEAN DIAMETER; MICROSTRUCTURAL ANALYSIS; MISCH METAL; SCANNING ELECTRON MICROSCOPIES (SEM); SECONDARY DENDRITE ARM SPACING; SI-PARTICLE; SPHEROIDIZATION; T6 HEAT TREATMENT;

AGE HARDENING; ALLOYS; CERIUM ALLOYS; DUCTILE FRACTURE; EUTECTICS; FRACTURE; HEAT TREATMENT; MICROSTRUCTURE; PARTICLE SIZE ANALYSIS; SCANNING ELECTRON MICROSCOPY;

ALUMINUM ALLOYS;

EID: 84855391747     PISSN: 02641275     EISSN: 18734197     Source Type: Journal    
DOI: 10.1016/j.matdes.2011.11.018     Document Type: Article

References (25)

1. Mohanty P.S., Gruzleski J.E. Grain refinement mechanisms of hypoeutectic Al-Si alloys. Acta Mater 1996, 44:3749-3760.
2. Kori S.A., Murty B.S., Chakraborty M. Preparation and characterization of Al-B and B-rich Al-Ti-B master alloys for the grain refinement of Al-7Si alloy. AFS Trans 2001, 109:267-286.
3. 21.4 eutectic alloy. J Alloys Compd 2010, 490:L1-L4.
4. Osório W.R., Garcia A. Modeling dendritic structure and mechanical properties of Zn-Al alloys as a function of solidification conditions. Mater Sci Eng 2002, 325:103-111.
5. Osório W.R., Peixoto L.C., Moutinho D.J., Gomes L.G., Ferreira I.L., Garcia A. Corrosion resistance of directionally solidified Al-6Cu-1Si and Al-8Cu-3Si alloys castings. Mater Des 2011, 32:3822-3837.
6. Kocatepe K. Effect of low frequency vibration on porosity of LM25 and LM6 alloys. Mater Des 2007, 28:1767-1775.
7. Taghavi F., Saghafian H., Kharazi Y.H.K. Study on the effect of prolonged mechanical vibration on the grain refinement and density of A356 aluminum alloy. Mater Des 2009, 30:1604-1611.
8. Chirita G., Stefanescu I., Soares D., Silva F.S. Influence of vibration on the solidification behaviour and tensile properties of an Al-18wt.%Si alloy. Mater Des 2009, 30:1575-1580.
9. Campbell J. Grain refinement of solidifying metals by vibration: a review. Solidification technology in the foundry and cast house 1983, 61-65. The Metals Society, London.
10. Richards R.S., Rostoker W. The influence of vibration on the solidification of an aluminum alloy. Trans ASM 1956, 48:885-901.
11. Zhu M., Jian Z.Y., Yao L.J., Liu C.X., Yang G.C., Zhou Y.H. Effect of mischmetal modification treatment on the microstructure, tensile properties, and fracture behavior of Al-7.0%Si-0.3%Mg foundry aluminum alloys. J Mater Sci 2011, 46:2685-2694.
12. Hurley T.J., Atkinson R.G. Effects of modification practice on aluminum A356 alloys. AFS Trans 1985, 93:291-296.
13. Closset A., Gruzleski J.E. Structure and properties of hypoeutectic Al-Si-Mg alloys modified with pure strontium. Metall Trans A 1982, 13:945-951.
14. Ravi M., Pillar U.T.S., Pai B.C., Damodaran A.D., Dwarakadasa E.S. A study of the influence of mischmetal additions to Al-7Si-0.3Mg (LM 25/356) alloy. Metall Mater Trans A 1994, 27:1283-1292.
15. Zhang D.L., Zheng L. The quench sensitivity of cast Al-7wt.%Si-0.4wt.%Mg alloy. Metall Mater Trans A 1996, 27:3983-3991.
16. Ogris E., Wahlen A., Lüchinger H., Uggowitzer P.J. On the silicon spheroidization in Al-Si alloys. J Light Metals 2002, 2:263-269.
17. Zhang D.L., Zheng L.H., St John D.H. Effect of a short solution treatment time on microstructure and mechanical properties of modified Al-7wt.%Si-0.3wt.%Mg alloy. J Light Metals 2002, 2:27-36.
18. Wang Q.G., Davidson C.J. Solidification and precipitation behaviour of Al-Si-Mg casting alloys. J Mater Sci 2001, 36:739-750.
19. Wang Q.G. Microstructural effects on the tensile and fracture behavior of aluminum casting alloys A356/357. Metall Mater Trans A 2003, 34:2887-2899.
20. Cáceres C.H., Davidson C.J., Griffiths J.R., Wang Q.G. The effect of Mg on the microstructure and mechanical behavior of Al-Si-Mg casting alloys. Metall Mater Trans A 1999, 30:2611-2618.
21. Shivkumar S., Ricci S., Apelian D. Influence of solution parameters and simplified supersaturation treatment on tensile properties of A356 alloy. AFS Trans 1990, 98:913-922.
22. Paray F., Gruzleski J.E. Modification - a parameter to consider in the heat treatment of Al-Si alloys. Cast Metals 1993, 5(4):187-198.
23. Cáceres C.H., Wang Q.G. Solidification conditions, heat treatment and the tensile ductility of Al-7Si-0.4Mg casting alloys. AFS Trans 1996, 104:1039-1043.
24. Ran G., Zhou J.E., Wang Q.G. Precipitates and tensile fracture mechanism in a sand cast A356 aluminum alloy. J Mater Process Tech 2008, 207:46-52.
25. Martin J.W. Micromechanisms in particle hardened alloys 1980, Cambridge University Press, p. 54.