Journal of Materials Science

, Volume 53, Issue 13, pp 9790–9805 | Cite as

Influencing factors of the coarsening behaviors for 7075 aluminum alloy in the semi-solid state

Metals
  • 60 Downloads

Abstract

The kinetics of microstructural coarsening for the semi-solid wrought 7075 aluminum alloy was determined. The variation of the coarsening rate constant K with the increasing liquid fractions and the corresponding coarsening mechanisms were determined for the recrystallization and partial remelting-processed sample. The effect of plastic pre-deformation on the value K was considered for equal channel angular pressing-based stain-induced melting activation-processed sample. A succinct review of the attempts to understand the various parameters involved in grain growth in this study and some similar literature was also provided. The results show that the rate of grain growth depends on the liquid content, temperatures, alloy composition and processing routes. The volume fraction of liquid influences both the liquid–solid interfacial area and the mean diffusion distance. The actual coarsening rate constant is the summation of independent solid and liquid contribution to the atoms diffusion. Three different coarsening mechanisms, viz. coalescence, inhibited Ostwald ripening and classical Ostwald ripening, are dominant for the elevated liquid fractions, respectively. A greater strain in the solid state or shearing rate in the liquid state usually leads to a lower coarsening rate for the alloys in the semi-solid state due to the facilitated nucleation–growth rate ratio. Further, the wrought aluminum alloys exhibit lower coarsening rate than the cast aluminum alloys due to the inhibited coarsening process by the intermetallic precipitates.

Notes

Acknowledgements

The present research was supported by the National Natural Science Foundation of China (Grant Number: 51174028).

Compliance with ethical standards

Conflict of interest

We declare that we do not have any commercial or associative interest that represents a conflict of interest in connection with the work submitted.

References

  1. 1.
    Chen G, Chen Q, Qin J, Du ZM (2016) Effect of compound loading on microstructures and mechanical properties of 7075 aluminum alloy after severe thixoformation. J Mater Process Tech 229:467–474CrossRefGoogle Scholar
  2. 2.
    Chen Q, Chen G, Ji XH, Han F, Zhao ZD, Wan J, Xiao XQ (2017) Compound forming of 7075 aluminum alloy based on functional integration of plastic deformation and thixoformation. J Mater Process Tech 246:167–175CrossRefGoogle Scholar
  3. 3.
    Balan T, Becker E, Langlois L, Bigot R (2017) A new route for semi-solid steel forging. CIRP ANN-Manuf Tech 66:297–300CrossRefGoogle Scholar
  4. 4.
    Tzimas E, Zavaliangos A (2000) Evolution of near-equiaxed microstructure in the semisolid state. Mater Sci Eng A 289:228–240CrossRefGoogle Scholar
  5. 5.
    Tzimas E, Zavaliangos A (2000) A comparative characterization of near-equiaxed microstructures as produced by spray casting, magnetohydrodynamic casting and the stress induced melt activated process. Mater Sci Eng A 289:217–227CrossRefGoogle Scholar
  6. 6.
    Birol Y (2013) Evolution of globular microstructures during processing of aluminum slurries. Trans Nonferrous Metals Soc China 23:1–6CrossRefGoogle Scholar
  7. 7.
    Alhawari KS, Omar MZ, Ghazali MJ, Salleh MS, Mohammed MN (2015) Evaluation of the microstructure and dry sliding wear behavior of thixoformed A319 aluminum alloy. Mater Des 76:169–180CrossRefGoogle Scholar
  8. 8.
    Bolouri A, Shahmiri M, Kang CG (2011) Study on the effects of the compression ratio and mushy zone heating on the thixotropic microstructure of AA 7075 aluminum alloy via SIMA process. J Alloys Compd 509:402–408CrossRefGoogle Scholar
  9. 9.
    Haghparast A, Nourimotlagh M, Alipour M (2012) Effect of the strain-induced melt activation (SIMA) process on the tensile properties of a new developed super high strength aluminum alloy modified by Al\5Ti\1B grain refiner. Mater Charact 71:6–18CrossRefGoogle Scholar
  10. 10.
    Fu JL, Wang YW, Wang KK, Li XW (2016) Microstructure evolution and coarsening mechanism of 7075 semi-solid aluminum alloy pre-deformed by ECAP method. Solid State Phenom 256:294–330CrossRefGoogle Scholar
  11. 11.
    Bolouri A, Kang CG (2012) Correlation between solid fraction and tensile properties of semisolid RAP processed aluminum alloys. J Alloys Compd 516:192–200CrossRefGoogle Scholar
  12. 12.
    Wang CP, Zhang YY, Li DF, Mei HS, Zhang W, Liu J (2013) Microstructure evolution and mechanical properties of ZK60 magnesium alloy produced by SSTT and RAP route in semi-solid state. Trans Nonferrous Metals Soc China 23:3621–3628CrossRefGoogle Scholar
  13. 13.
    Fu JL, Wang KK, Li XW, Hai HK (2016) Microstructure evolution and thixoforming behavior of 7075 aluminum alloy in the semi-solid state prepared by RAP method. Int J Miner Metall Mater 23:1404–1415CrossRefGoogle Scholar
  14. 14.
    Greenwood GW (1956) The growth of dispersed precipitates in solutions. Acta Metall 4:253–348CrossRefGoogle Scholar
  15. 15.
    Lifshitz IM, Slyozov VV (1961) The kinetics of precipitation from supersaturated solid solutions. J Phys Chem Solids 19:35–50CrossRefGoogle Scholar
  16. 16.
    German RM, Suri P, Park SJ (2009) Review: liquid phase sintering. J Mater Sci 22:1–39.  https://doi.org/10.1007/s10853-008-3008-0 CrossRefGoogle Scholar
  17. 17.
    Loué WR, Suéry M (1995) Microstructural evolution during partial remelting of Al-Si7Mg alloys. Mater Sci Eng A 203:1–13CrossRefGoogle Scholar
  18. 18.
    Zhao ZD, Chen Q, Wang YB, Shu DY (2009) Microstructural evolution of an ECAE-formed ZK60-RE magnesium alloy in the semi-solid state. Mater Sci Eng A 506:8–15CrossRefGoogle Scholar
  19. 19.
    Liu CM, He NJ, Li HJ (2001) Structure evolution of AlSi6.5Cu2.8 Mg alloy in semi-solid remelting processing. J Mater Sci 36:4949–4953.  https://doi.org/10.1023/A:1011804807769 CrossRefGoogle Scholar
  20. 20.
    Kazemi A, Nourouzi S, Kolahdooz A, Gorji A (2015) Experimental investigation of thixoforging process on microstructure and mechanical properties of the centrifugal pump flange. J Mater Process Technol 29:2957–2965Google Scholar
  21. 21.
    German RM, Olesky EA (2005) Modeling grain growth dependence on the liquid content in liquid-phase-sintered materials. Metall Mater Trans A 36:149–159CrossRefGoogle Scholar
  22. 22.
    Atkinson HV, Liu D (2008) Microstructural coarsening of semi-solid aluminium alloys. Mater Sci Eng A 496:439–446CrossRefGoogle Scholar
  23. 23.
    Atkinson HV, Liu D (2010) Coarsening rate of microstructure in semi-solid aluminium alloys. Trans Nonferrous Metals Soc China 20:1672–1676CrossRefGoogle Scholar
  24. 24.
    Annavarapu S, Doherty D (1995) Inhibited coarsening of solid-liquid microstructures in spray casting at high volume fractions of solid. Acta Metall Mater 43:3207–3230CrossRefGoogle Scholar
  25. 25.
    Binesh B, Aghaie-Khafri M (2016) RUE-based semi-solid processing: microstructure evolution and effective parameters. Mater Des 95:268–286CrossRefGoogle Scholar
  26. 26.
    Kim HS, Stone IC (2008) B, Cantor. Microstructural evolution in semi-solid AA7034. J Mater Sci 43:1292–1304.  https://doi.org/10.1007/s10853-007-2151-3 CrossRefGoogle Scholar
  27. 27.
    Hogg SC, Atkinson HV (2005) Inhibited coarsening of a spray-formed and extruded hypereutectic aluminum-silicon alloy in the semisolid state. Metall Mater Trans A 36:149–159CrossRefGoogle Scholar
  28. 28.
    Atkinson HV, Burke K, Vaneetveld G (2008) Recrystallization in the semi-solid state in 7075 aluminum alloy. Int J Mater Form 1:973–976CrossRefGoogle Scholar
  29. 29.
    Jiang JF, Wang Y, Qu JJ, Du ZM, Sun Y, Luo SJ (2010) Microstructure evolution of AM60 magnesium alloy semisolid slurry prepared by new SIMA. J Alloys Compd 497:62–67CrossRefGoogle Scholar
  30. 30.
    Manson-Whitton D, Stone IC, Jones JR, Grant PS, Cantor B (2002) Isothermal grain coarsening of spray formed alloys in the semisolid state. Acta Mater 50:2517–2535CrossRefGoogle Scholar
  31. 31.
    Kim SS, Yoon DN (1983) Coarsening behaviour of Mo grains dispersed in liquid matrix. Acta Metall 31:1151CrossRefGoogle Scholar
  32. 32.
    Chen Q, Zhao ZD, Chen G, Wang B (2015) Effect of accumulative plastic deformation on generation of spheroidal structure, thixoformability and mechanical properties of large-size AM60 magnesium alloy. J Alloys Compd 632:190–200CrossRefGoogle Scholar
  33. 33.
    Bolouri A, Shahmiri M, Cheshmeh ENH (2010) Microstructural evolution during semisolid state strain induced melt activation process of aluminum 7075 alloy. Trans.Nonferrous Metals Soc China 20:1663–1671CrossRefGoogle Scholar
  34. 34.
    Wang CP, Tang ZJ, Mei HS, Wang L, Li RQ, Li DF (2015) Formation of spheroidal microstructure in semi-solid state and thixoforming of 7075 high strength aluminum alloy. Rare Met 34:710–716CrossRefGoogle Scholar
  35. 35.
    Kang SS, Yoon DN (1982) Kinetics of grain coarsening during sintering of Co-Cu and Fe-Cu alloys with low liquid contents. Metall Trans 13A:1405–1412CrossRefGoogle Scholar
  36. 36.
    Jiang JF, Wang Y, Nie X, Xiao GF (2016) Microstructure evolution of semisolid billet of nano-sized SiCp/7075 aluminum matrix composite during partial remelting process. Mater Des 96:36–43CrossRefGoogle Scholar
  37. 37.
    Mohammadi H, Ketabchi M, Kalaki A (2011) Microstructure evolution of semi-Solid 7075 aluminum alloy during reheating process. J Mater Eng Perform 20:1256–1263CrossRefGoogle Scholar
  38. 38.
    Bolouri A, Shahmiri M, Kang CG (2012) Coarsening of equiaxed microstructure in the semisolid state of aluminum 7075 alloy through SIMA processing. J Mater Sci 47:3544–3553.  https://doi.org/10.1007/s10853-011-6200-6 CrossRefGoogle Scholar
  39. 39.
    Binesh B, Aghaie-Khafri M (2015) Microstructure and texture characterization of 7075 Al alloy during the SIMA process. Mater Charact 106:390–403CrossRefGoogle Scholar
  40. 40.
    Jiang JF, Wang Y, Atkinson HV (2014) Microstructural coarsening of 7005 aluminum alloy semisolid billets with high solid fraction. Mater Charact 90:52–61CrossRefGoogle Scholar
  41. 41.
    Jiang JF, Wang Y, Xiao GF, Nie X (2016) Comparison of microstructural evolution of 7075 aluminum alloy fabricated by SIMA and RAP. J Mater Process Technol 238:361–372CrossRefGoogle Scholar
  42. 42.
    Zoqui EJ, Shehata MT, Paes M, Kao V, Sadiqi EE (2002) Morphological evolution of SSM A356 during partial remelting. Mater Sci Eng A 325:38–53CrossRefGoogle Scholar
  43. 43.
    Khalifa W, Tsunekawa Y, Okumiya M (2008) Effect of reheating to the semisolid state on the microstructure of the A356 aluminum alloy produced by ultrasonic melt-treatment. Solid State Phenom 141–143:499–504CrossRefGoogle Scholar
  44. 44.
    Guo HM, Luo XQ, Zhang AS, Yang XJ (2010) Isothermal coarsening of primary particles during rheocasting. Trans Nonferrous Metals Soc China 20:1361–1366CrossRefGoogle Scholar
  45. 45.
    Yan GH, Zhao SD, Ma SQ, Shou HT (2012) Microstructural evolution of A356.2 alloy prepared by the SIMA process. Mater Charact 69:45–51CrossRefGoogle Scholar
  46. 46.
    Abed A, Shahmiri M, Amir Esgandari B, Nami B (2013) Microstructural evolution during partial remelting of Al-Si alloys containing different amounts of magnesium. J Mater Sci Technol 29:971–978CrossRefGoogle Scholar
  47. 47.
    Hassas-Irani SB, Zarei-Hanzaki A, Bazaz B, Roostaei Ali A (2013) Microstructure evolution and semi-solid deformation behavior of an A356 aluminum alloy processed by strain induced melt activated method. Mater Des 46:579–587CrossRefGoogle Scholar
  48. 48.
    Haghdadi N, Zarei-Hanzaki A, Heshmati-Manesh S, Abedi HR, Hassas-Irani SB (2013) The semisolid microstructural evolution of a severely deformed A356 aluminum alloy. Mater Des 49:878–887CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijingChina

Personalised recommendations