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High-Temperature Workability of Thixocast A356 Aluminum Alloy

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Abstract

The present work highlights the role of globular microstructure on the workability of A356 aluminum alloy at elevated temperature. The hot deformation behavior was studied by isothermal hot compression tests in the temperature range 573 K to 773 K (300 °C to 500 °C) and strain rate range of 0.001 to 10 s−1. The flow stress data obtained from the tests were used to estimate the strain rate sensitivity and strain rate hardening. Flow stress analysis of the alloy shows that the effect of temperature on strain hardening is more significant at lower strain levels and strain rate sensitivity is independent of strain. The results also reveal that the flowability of conventionally cast alloy increases after changing the dendritic microstructure into a globular structure through semisolid processing route. Thixocast alloy exhibits lower yield strength and higher elongation at elevated temperature in comparisons to conventionally cast values. This property has an important implication toward thixo-forming at an elevated temperature.

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References

  1. K.Siriporn, S. Wisutmethangoon, T. Plookpholi and J.Wannasin: JOM, 2008, vol.18, pp. 93-97.

    Google Scholar 

  2. M.C. Flemings and R. Mehrabian: AFS Transactions, 1973, vol.102, pp. 81-88.

    Google Scholar 

  3. T. Matsumiya and M.C. Flemings: Metall. Trans. B, 1981, vol. 21, pp. 17-31.

    Article  Google Scholar 

  4. P. Kapranos, P.J. Ward, H.V. Atkinson and D.H. Kirkwood: Mater. Des., 2000, vol. 21(4), pp.387-94.

    Article  Google Scholar 

  5. Z. Fan: Int. Mater. Rev., 2002, vol. 47(2), pp. 49-85.

    Article  Google Scholar 

  6. D. Brabazon, D.J. Browne and A.J. Carr: Mater. Sci. Eng. A, 2003, vol. 356, pp. 69-80.

    Article  Google Scholar 

  7. S. N. Aqida, M. Maurel, D. Brabazon, S. Naher and M. Rosso: Int. J. Mater. Form., 2009, vol. 2, pp. 761- 64.

    Article  Google Scholar 

  8. S. K. Singh, K. Chattopadhyay, G. Phanikumar and P. Dutta: Acta Mater., 2014, vol.73, pp.177-85.

    Article  Google Scholar 

  9. S. Venugopal, S.L.Mannan, and Y.V.R.K. Prasad: Mater. Lett., 1992, vol. 15, pp.79-83.

    Article  Google Scholar 

  10. S. Venugopal, S.L. Mannan, and Y.V.R.K Prasad: Mater. Sci. Eng. A, 1994, vol. 177, pp. 143–49.

  11. P.V. Sivaprasad, S.L Mannan and Y.V.R.K. Prasad: Mater. Sci. Technol., 2004, vol. 20, pp. 1545-50.

    Article  Google Scholar 

  12. B. Paul, R. Kapoor, J.K. Chakravartty., A.C. Bidaye, I.G. Sharma, and A.K. Suri: Scripta Mater., 2009, vol. 60, pp. 104–07.

  13. Y.V.R.K Prasad and K.P Rao: Mater. Sci. Eng. A, 2008, vol. 487, pp. 316–27.

  14. K.P. Rao, Y.V.R.K. Prasad, N. Hort, and K.U. Kainer: J. Mater. Process. Technol., 2008 vol. 201, pp. 359–63.

    Article  Google Scholar 

  15. Y.V.R.K Prasad and K.P. Rao: Mater. Sci. Eng. A, 2008, vol. 487, pp. 316-27.

    Article  Google Scholar 

  16. Y. Niu, H. Hou, M. Li and Z. Li: Mater. Sci. Eng. A, 2008, vol. 492, pp. 24-28.

    Article  Google Scholar 

  17. H.Z. Li, H.J. Wang, X.P. Liang, H.T. Liu, Y. Liu and X.M. Zhang: Mater. Sci. Eng. A, 2011, vol. 528, pp. 1548-52.

    Article  Google Scholar 

  18. D.B. Spencer: PhD. Thesis, MIT, 1971.

  19. D.B. Spencer, R. Mehrabian, and M.C. Flemings: Metall. Trans., 1972, vol.3, pp.1925-32.

    Article  Google Scholar 

  20. M. C. Flemings, R. G. Riek and K. P. Young: Mater. Sci. Eng., 1976, vol. 25, pp. 103-17.

    Article  Google Scholar 

  21. J. Cheng, D. Apelian and R.D. Doherty: Metall. Trans. A, 1986, vol.17A, pp. 2049-62.

    Article  Google Scholar 

  22. W. G. Cho and C. G. Kang: J.Mater. Process. Technol., 2000, vol. 105, pp. 269-77.

    Article  Google Scholar 

  23. E. J. Zoqui, M. Paes and E. Es-Sadiqi: J. Mater. Process.Technol., 2002, vol. 120, pp. 365-73.

    Article  Google Scholar 

  24. H. V. Atkinson: Prog. Mater. Sci., 2005, vol. 50, pp. 341-412.

    Article  Google Scholar 

  25. G. Hirt and R. Kopp: Thixoforming, Semi-Solid Metal Processing, Wiley-VCH, New York, NY, 2009.

    Google Scholar 

  26. M.Theron, R.D. Knutsen, L.H. Ivanchev and H.P. Burger: J.Mater. Process. Technol., 2012, vol. 212, pp. 465-70.

    Article  Google Scholar 

  27. Y.V.R.K. Prasad and S. Sasidhara: A Compendium of Processing Maps, ASM International, Metals Park, Ohio, 1997.

    Google Scholar 

  28. Y.V.R.K. Prasad, H.L. Gegel, S.M. Doraivelu, J.C. Malas, J.T. Morgan, K.A. Lark, and D.R. Barker: Metall. Trans. A, 1984, vol. 15, pp. 1883–92.

  29. N. Ravichandran and Y.V.R.K. Prasad: Metall. Trans. A, 1991, vol. 22A, pp. 2339-48.

    Article  Google Scholar 

  30. N. Srinivasan and Y.V.R.K. Prasad: Mater. Sci. Technol., 1992, vol. 8, pp. 206-12.

    Article  Google Scholar 

  31. O. Sivakesavam, I.S. Rao and Y.V.R.K. Prasad: Mater. Sci. Technol., 1993, vol.9, pp.805-10.

    Google Scholar 

  32. S.V. Narayanamurthy, B. Nageswararao, and B.P. Kashyap: Int. Mater. Rev., 2000, vol.45, pp. 15-21.

    Article  Google Scholar 

  33. Y.V.R.K. Prasad, T. Seshacharyalu, S.C. Medeiors, and W.G. Frazier: Mater. Sci. Technol., 2000, vol.16, pp.511-16.

    Article  Google Scholar 

  34. D. Padmavardhani and Y.V.R.K. Prasad: Metall. Trans. A, 1991, vol. 22A, pp. 2985–92.

    Article  Google Scholar 

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Authors and Affiliations

  1. Department of Materials Engineering, Indian Institute of Science, Bangalore, 560012, India

    Shailesh Kumar Singh (Graduate Student) & K. Chattopadhyay (Professor)

  2. Department of Mechanical Engineering, Indian Institute of Science, Bangalore, 560012, India

    Pradip Dutta (Professor)

Authors
  1. Shailesh Kumar Singh
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  2. K. Chattopadhyay
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  3. Pradip Dutta
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Correspondence to Pradip Dutta.

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Manuscript submitted August 10, 2014.

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Singh, S.K., Chattopadhyay, K. & Dutta, P. High-Temperature Workability of Thixocast A356 Aluminum Alloy. Metall Mater Trans A 46, 3248–3259 (2015). https://doi.org/10.1007/s11661-015-2855-y

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