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Microstructural modification of as-cast Al-Si-Mg alloy by friction stir processing

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Abstract

Friction stir processing (FSP) has been applied to cast aluminum alloy A356 plates to enhance the mechanical properties through microstructural refinement and homogenization. The effect of tool geometry and FSP parameters on resultant microstructure and mechanical properties was investigated. The FSP broke up and dispersed the coarse acicular Si particles creating a uniform distribution of Si particles in the aluminum matrix with significant microstructural refinement. Further, FSP healed the casting porosity. These microstructural changes led to a significant improvement in both strength and ductility. Higher tool rotation rate was the most effective parameter to refine coarse Si particles, heal the casting porosity, and consequently increase strength. The effect of tool geometry was complicated and no systematic trend was observed. For a standard pin design, maximum strength was achieved at a tool rotation rate of 900 rpm and traverse speed of 203 mm/min. Post-FSP aging increased strength for materials processed at higher tool rotation rates of 700 to 1100 rpm, but exerted only a marginal effect on samples prepared at the lower rotation rate of 300 rpm. Two-pass FSP with 100 pct overlapping passes resulted in higher strength for both as-FSP and post-FSP aged conditions.

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References

  1. D.L. Zhang and L. Zheng:Metall. Mater. Trans. A, 1996, vol. 27A, pp. 3983–91.

    Article  CAS  Google Scholar 

  2. T. Din and J. Campbell:Mater. Sci. Technol., 1996, vol. 12, pp. 644–50.

    CAS  Google Scholar 

  3. Y.B. Yu, P.Y. Song, S.S. Kim, and J.H. Lee:Scripta Mater., 1999, vol. 41, pp. 767–71.

    Article  CAS  Google Scholar 

  4. Aluminum Casting Technology, 2nd ed., D.L. Zalensas, ed., AFS Inc., Schaumburg, IL, 1993, p. 77.

    Google Scholar 

  5. S. Kumai, J. Hu, Y. Higo, and S. Nunomura:Acta Mater., 1996, vol. 44, pp. 2249–57.

    Article  CAS  Google Scholar 

  6. B. Zhang, D.R. Poirier, and W. Chen:Metall. Mater. Trans. A, 1999, vol. 30A, pp. 2659–66.

    CAS  Google Scholar 

  7. M.E. Seniw, J.G. Conley, and M.E. Fine:Mater. Sci. Eng., A, 2000, vol. A285, pp. 43–48.

    CAS  Google Scholar 

  8. G. Atxaga, A. Pelayo, and A.M. Irisarri:Mater. Sci. Technol., 2001, vol. 17, pp. 446–50.

    Article  CAS  Google Scholar 

  9. K.T. Kashyap, S. Murrall, K.S. Raman, and K.S.S. Murthy:Mater. Sci. Technol., 1993, vol. 9, pp. 189–203.

    CAS  Google Scholar 

  10. L. Wang and S. Shivkumar:Z. Metallkd., 1995, vol. 86, pp. 441–45.

    CAS  Google Scholar 

  11. T.J. Hurley and R.G. Atkinson:Trans. AFS, 1985, vol. 91, pp. 291–96.

    Google Scholar 

  12. D. Argo and J.E. Gruzleski:Trans. AFS, 1988, vol. 16, p. 65.

    Google Scholar 

  13. J. Wang, S. He, B. Sun, K. Li, D. Shu, and Y. Zhou:Mater. Sci. Eng., A, 2002, vol. A338, pp. 101–07.

    CAS  Google Scholar 

  14. W.M. Thomas, E.D. Nicholas, J.C. Needham, M.G. Murch, P. Templesmith, and C.J. Dawes: Great Britain Patent Application No. 9125978.8, Dec. 1991.

  15. R.S. Mishra and Z.Y. Ma:Mater. Sci. Eng., R, 2005, vol. 50, pp. 1–78.

    Article  CAS  Google Scholar 

  16. R.S. Mishra, M.W. Mahoney, S.X. McFadden, N.A. Mara, and A.K. Mukherjee:Scripta Mater., 2000, vol. 42, pp. 163–68.

    Article  CAS  Google Scholar 

  17. Z.Y. Ma, R.S. Mishra, and M.W. Mahoney:Acta Mater., 2002, vol. 50, pp. 4419–30.

    Article  CAS  Google Scholar 

  18. Z.Y. Ma and R.S. Mishra:Acta Mater., 2003, vol. 51, pp. 3551–69.

    Article  CAS  Google Scholar 

  19. Z.Y. Ma, R.S. Mishra, M.W. Mahoney, and R. Grimes:Metall. Mater. Trans. A, 2005, vol. 36A, pp. 1447–58.

    CAS  Google Scholar 

  20. Z.Y. Ma and R.S. Mishra:Scripta Mater., 2005, vol. 53, pp. 75–80.

    Article  CAS  Google Scholar 

  21. R.S. Mishra, Z.Y. Ma, and I. Charit:Mater. Sci. Eng., A, 2003, vol. 341A, pp. 307–10.

    Google Scholar 

  22. P.B. Berbon, W.H. Bingel, R.S. Mishra, C.C. Bampton, and M.W. Mahoney:Scripta Mater., 2001, vol. 44, pp. 61–66.

    Article  CAS  Google Scholar 

  23. J.E. Spowart, Z.Y. Ma, and R.S. Mishra: inFriction Stir Welding and Processing II, K.V. Jata, M.W. Mahoney, R.S. Mishra, S.L. Semiatin, and T. Lienert, eds., TMS, Warrendale, PA, 2003, pp. 243–52.

    Google Scholar 

  24. Z.Y. Ma, S.R. Sharma, R.S. Mishra, and M.W. Mahoney:Mater. Sci. Forum, 2003, vols. 426–432, pp. 2891–96.

    Article  Google Scholar 

  25. S.R. Sharma, Z.Y. Ma, R.S. Mishra, and M.W. Mahoney:Scripta Mater., 2004, vol. 51, pp. 237–41.

    Article  CAS  Google Scholar 

  26. M.W. Mahoney, C.G. Rhodes, J.G. Flintoff, R.A. Spurling, and W.H. Bingel:Metall. Mater. Trans. A, 1998, vol. 29A, pp. 1955–64.

    CAS  Google Scholar 

  27. W. Tang, X. Guo, J.C. McClure, and L.E. Murr:J. Mater. Processing Manufacturing Sci, 1998, vol. 7, pp. 163–72.

    Article  CAS  Google Scholar 

  28. Y.S. Sato, H. Kokawa, M. Enmoto, and S. Jogan:Metall. Mater. Trans. A, 1999, vol. 30A, pp. 2429–37.

    CAS  Google Scholar 

  29. T. Hashimoto, S. Jyogan, K. Nakata, Y.G. Kim, and M. Ushio:Proc. 1st Int. Symp. on Friction Stir Welding, Thousand Oaks, CA, June 14–16, 1999.

  30. Y.J. Kwon, N. Saito, and I. Shigematsu:J. Mater. Sci. Lett., 2002, vol. 21, pp. 1473–76.

    Article  CAS  Google Scholar 

  31. Y.S. Sato, M. Urata, and H. Kokawa:Metall. Mater. Trans. A, 2002, vol. 33A, pp. 625–35.

    Google Scholar 

  32. A.P. Reynolds:Sci. Technol. Welding Joining, 2000, vol. 5, pp. 120–24.

    Article  Google Scholar 

  33. K. Colligan:Weld J., 1999, vol. 78, pp. 229S-237S.

    Google Scholar 

  34. B. London, M. Mahoney, W. Bingel, M. Calabrese, R.H. Bossi, and D. Waldron: inFriction Stir Welding and Processing II, K.V. Jata, M.W. Mahoney, R.S. Mishra, S.L. Semiatin, and T. Lienert, eds., TMS, Warrendale, PA, 2003, pp. 3–10.

    Google Scholar 

  35. L.E. Murr, R.D. Flores, O.V. Flores, J.C. McClure, G. Liu, and D. Brown:Mater. Res. Innovat., 1998, vol. 1, pp. 211–23.

    Article  CAS  Google Scholar 

  36. J.H. Ouyang and R. Kovacevic:J. Mater. Eng. Performance, 2002, vol. 11, pp. 51–63.

    Article  CAS  Google Scholar 

  37. S. Xu, X. Deng, A.P. Reynolds, and T.U. Seidel:Sci. Technol. Welding Joining, 2001, vol. 6, pp. 191–93.

    Article  Google Scholar 

  38. M.B. Stewart, G.P. Adamas, A.C. Nunes, Jr., and P. Romine:Developments in Theoretical and Applied Mechanics, Florida Atlantic University, Boca Raton, FL, 1998, pp. 472–84.

    Google Scholar 

  39. L. Ke, L. Xing, and J.E. Indacochea:Joining of Advanced and Specialty Materials IV, ASM INTERNATIONAL, Materials Park, OH, 2002, pp. 125–34.

    Google Scholar 

  40. K.N. Krishnan:Mater. Sci. Eng., A, 2002, vol. A327, pp. 246–51.

    CAS  Google Scholar 

  41. G. Biallas, R. Braun, C.D. Donne, G. Staniek, and W.A. Keysser:1st Int. Conf. on Friction Stir Welds, Thousand Oaks, CA, 1999.

  42. A. Askari, S. Silling, B. London, and M. Mahoney: inFriction Stir Welding and Processing, K.V. Jata, M.W. Mahoney, R.S. Mishra, and D.P. Field, eds., TMS, Warrendale, PA, 2001, pp. 43–54.

    Google Scholar 

  43. S. Shivkumar, S. Ricci, Jr., C. Keller, and D. Apelian:J. Heat Treatment, 1990, vol. 8, pp. 63–70.

    CAS  Google Scholar 

  44. S. Shivkumar, S. Ricci, Jr., B. Steenhoff, D. Apelian, and G. Sigworth:AFS Trans., 1989, vol. 97, pp. 791–810.

    Google Scholar 

  45. J.W. Martin and R.D. Doherty:Stability of Microstructure in Metallic Systems, Cambridge University Press, Cambridge, United Kingdom, 1976, p. 35.

    Google Scholar 

  46. Q.C. Wang, C.H. Cáceres, and J.R. Griffiths:ASF Trans., 1998, vol. 106, pp. 131–36.

    CAS  Google Scholar 

  47. C.H. Cáceres, C.J. Davidson, and J.R. Griffiths:Mater. Sci. Eng., A, 1995, vol. A197, pp. 171–79.

    Google Scholar 

  48. C.H. Cáceres and Q.C. Wang:Int. J. Cast Met. Res., 1996, vol. 9, pp. 157–62.

    Google Scholar 

  49. M. Tiryakioğlu, J. Campbell, and J.T. Staley:Scripta Mater., 2003, vol. 49, pp. 873–78.

    Article  CAS  Google Scholar 

  50. M.L. Santella, T. Engstrom, D. Storjohann, and T.Y. Pan:Scripta Mater., 2005, vol. 53, pp. 201–06.

    Article  CAS  Google Scholar 

  51. Z.Y. Ma, S.R. Sharma, and R.S. Mishra:Scripta Mater., 2006, vol. 54, pp. 1623–26.

    Article  CAS  Google Scholar 

  52. W.M. Thomas, E.D. Nicholas, and S.D. Smith:Aluminum 2001-Proc. TMS 2001 Aluminum Automotive and Joining Sessions, S.K. Das, J.G. Kaufman, and T.J. Lienert, eds., TMS, Warrendale, PA, 2001, p. 213.

    Google Scholar 

  53. Metals Handbook, 9th ed., ASM, Metals Park, OH, 1988, vol. 15.

  54. S. Shivkumar, S. Ricci, Jr., C. Keller, and D. Apelian:AFS Trans., 1990, vol. 98, pp. 913–22.

    CAS  Google Scholar 

  55. D.L. Zhang, L.H. Zheng, and D.H. St John:J. Light Met., 2002, vol. 2, pp. 27–36.

    Article  Google Scholar 

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Author notes

  1. Z. Y. Ma (Professor)

    Present address: Department of Materials Science and Engineering, Center for Friction Stir Processing, University of Missouri, USA

  2. S. R. Sharma

    Present address: Department of Materials Science and Engineering, Center for Friction Stir Processing, University of Missouri, USA

Authors and Affiliations

  1. Institute of Metal Research, Chinese Academy of Sciences, 110016, Shenyang, People’s Republic of China

    Z. Y. Ma (Professor)

  2. Intel Corporation, 97124, Portland, OR

    S. R. Sharma

  3. Department of Materials Science and Engineering, Center for Friction Stir Processing, University of Missouri, 65409, Rolla, MO

    R. S. Mishra (Professor)

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Ma, Z.Y., Sharma, S.R. & Mishra, R.S. Microstructural modification of as-cast Al-Si-Mg alloy by friction stir processing. Metall Mater Trans A 37, 3323–3336 (2006). https://doi.org/10.1007/BF02586167

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  • DOI: https://doi.org/10.1007/BF02586167

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