Effect of semi-solid isothermal heat treatment on the microstructure of Mg-6A1-1Zn-0.7Si alloy

Journal of Materials Processing Technology

Volumn 206, Issue 1-3, 2008, Pages 374-381

  Mingbo, Yang ^a,b   Fusheng, Pan ^b   Renju, Cheng ^b   Liang, Bai ^b  

^a CHONGQING UNIVERSITY OF TECHNOLOGY   (China)

^b CHONGQING UNIVERSITY   (China)

Author keywords

Mg A1 Si based alloys; Mg2Si phase; Semi solid; Semi solid isothermal heat treatment

Indexed keywords

HEAT TREATMENT; ISOTHERMS; MICROSTRUCTURAL EVOLUTION; PARTICLE SIZE; PHASE INTERFACES;

LIQUID CONTENT; NON-DENDRITIC MICROSTRUCTURE; SEMI-SOLID ISOTHERMAL HEAT TREATMENT; SEMI-SOLID MICROSTRUCTURAL EVOLUTION;

TERNARY ALLOYS;

EID: 44749088028     PISSN: 09240136     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jmatprotec.2007.12.041     Document Type: Article

References (26)

1. Balasubramani, N., Pillai, U.T.S., Pai, B.C., in press. Optimization of heat treatment parameters in ZA84 magnesium alloy. J. Alloys Compd.
2. Chen T.J., Ma Y., Hao Y., Lu S., Xu G.J., and Sun J. Structural evolution of ZA27 alloy during semi-solid isothermal heat treatment. Trans. Nonferrous Met. Soc. China 11 (2001) 98-102
3. Chen T.J., Hao Y., Sun J., and Li Y.D. Effects of Mg and RE additions on the semi-solid microstructure of a zinc alloy ZA27. Sci. Technol. Adv. Mater. 4 (2003) 495-502
4. Chen T.J., Ma Y., Li B., Li Y.D., and Hao Y. Wear behavior of thixoformed AZ91D magnesium alloy: a comparison with permanent mould cast alloy. Mater. Sci. Eng. A 445/446 (2007) 477-485
5. Czerwinski F. The processing phenomena of semisolid Mg-9Al-1Zn alloy at ultra high contents of the unmelted phase. Mater. Sci. Eng. A 392 (2005) 51-61
6. Czerwinski F., and Zielinska-Lipiec A. The microstructure evolution during semisolid molding of a creep-resistant Mg-5Al-2Sr alloy. Acta Mater. 53 (2005) 3433-3444
7. Dargusch M.S., Bowles A.L., Pettersen K., Bakke P., and Dunlop G.L. The effect of silicon content on the microstructure and creep behavior in die-cast magnesium AS alloys. Met. Mater. Trans. A 35 (2004) 1905-1909
8. 2Si morphology in squeeze cast Mg-Al-Zn-Si alloys by Ca or P addition. Scripta Mater. 41 (1999) 333-340
9. Kim J.M., Kim K.T., and Jung W.J. Effects of isothermal heating procedure and strontium addition on semisolid forming of AZ91 magnesium alloy. Mater. Sci. Technol. 18 (2002) 698-701
10. Li D.Z., Hu Z.Y., Li Q., and Li Y.Y. Microstructure simulation and process optimization of turbine blade castings[J]. Acta Metall. Sinica 11 (1998) 383-390 (English Letters)
11. Lu Y.Z., Wang Q.D., Zeng X.Q., Zhu Y.P., and Ding W.J. Effects of silicon on microstructure, fluidity, mechanical properties, and fracture behaviour of Mg-6Al alloy. Mater. Sci. Technol. 17 (2001) 207-214
12. Luo A., and Pekguleryuz M.Z. Review cast magnesium alloys for elevated temperature applications. J. Mater. Sci. 29 (1994) 5259-5271
13. 2Si morphology in as-cast Mg-Al-Si alloys with strontium and antimony. Mater. Sci. Forum 510/511 (2006) 238-241
14. Nishioka K., and Maksimov I.L. Reconsideration of the concept of critical nucleus and the Gibbs-Thomson equation. J. Crystal Growth 163 (1996) 1-7
15. 2Si/Al-Si-Cu composite in semisolid remelting processing. Mater. Sci. Eng. A 407 (2005) 196-200
16. Quimby P.D., Lu S.Z., Plichta R., Visser D.K., and Jacobe K.P. In: Luo A., Neelameggham N., and Beals R. (Eds). Effects of Minor Addition and Cooling Rate on the Microstructure of Cast Magnesium-Silicon Alloys[A] (2006), Magnesium Technology[C], San Antonio, Texas, USA pp. 535-538, TMS
17. Srinivasan A., Pillai U.T.S., and Pai B.C. Microstructure and mechanical properties of Si and Sb added AZ91 magnesium alloy. Met. Mater. Trans. A 36 (2005) 2235-2243
18. Tang B., Li S.S., Wang X.S., Zeng D.B., and Wu R. An investigation on hot-crack mechanism of ca addition into AZ91D alloy. J. Mater. Sci. 40 (2005) 2931-2936
19. Wang, J.G., Lin, H.Q., Li, Y.Q., Jiang, Q.C., in press. Effect of initial as-cast microstructure on semisolid microstructure of AZ91D alloy during the strain-induced melt activation process. J. Alloys Compd.
20. Wang J.L., Su Y.H., and Tsao C.Y.A. Structural evolution of conventional cast dendritic and spray-cast nonodendritic structures during isothermal holding in the semi-solid state. Scripta Mater. 37 (1997) 2003-2007
21. 2Si particles on the elevated temperature tensile properties of squeeze-cast Mg-Al alloys. Metal. Mater. Trans. A 35 (2004) 1629-1632
22. Yuan G.Y., Liu Z.L., Wang Q.D., and Ding W.J. Microstructure refinement of Mg-Al-Zn-Si alloys. Mater. Lett. 56 (2002) 53-58
23. Zeng X.Q., Wang Y.X., and Ding W.J. Effect of strontium on the microstructure, mechanical properties, and fracture behavior of AZ31 magnesium alloys. Metall. Mater. Trans. A 37 (2006) 1333-1341
24. Zhang Q.Q., Cao Z.Y., Zhang Y.F., Su G.H., and Liu Y.B. Effect of compression ratio on the microstructure evolution of semisolid AZ91D alloy. J. Mater. Process. Technol. 184 (2007) 195-200
25. Zhang X.L., Li T.J., Teng H.T., Xie S.S., and Jin J.Z. Semisolid processing AZ91magnesium alloy by electromagnetic stirring after near-liquidus isothermal heat treatment. Mater. Sci. Eng. A 475 (2008) 194-201
26. Zoqui E.J., and Robert M.H. Contribution to the study of mechanisms involved in the formation of rheocast structure. J. Mater. Process. Technol. 109 (2001) 215-219