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On the Ductility of Cast Al-7 Pct Si-Mg Alloys

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Abstract

The yield strength–elongation relationship in cast Al-7 pct Si-Mg castings has been investigated by analyzing 18 datasets from the literature on premium quality castings. The data representing the elongation for a given yield strength have been found to fall within an envelope, the top limit of which represents the ductility potential of Al-7 pct Si-Mg alloy castings. Analysis of maximum elongation data indicated that secondary arm spacing has no effect on elongation. It has also been determined that the quality index of Drouzy et al. does not provide a particularly accurate representation of the trends in maximum ductility data. A new quality index based on those proposed previously by Cáceres and Din et al. is proposed. Moreover, using the fracture toughness equation by Hahn and Rosenfield, intrinsic plane strain fracture toughness and intrinsic elongation values have been found to be correlated, indicating the internal consistency of the approach taken in this study. The implications of these results are discussed in the article.

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References

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

    Article  CAS  Google Scholar 

  2. C. Nyahumwa, N.R. Green, and J. Campbell: Metall. Mater. Trans. A., 2001, vol. 32A, pp. 349–58.

    Article  CAS  Google Scholar 

  3. J.T. Staley, Jr., M. Tiryakioğlu, and J. Campbell: Mater. Sci. Eng. A, 2007, vol. A465, pp. 136–45.

    CAS  Google Scholar 

  4. N.R. Green and J. Campbell: Mater. Sci. Eng. A, 1993, vol. A173, pp. 261–66.

    Google Scholar 

  5. X. Dai, X. Yang, J. Campbell, and J. Wood: Mater. Sci. Eng. A, 2003, vol. A354, pp. 315–25.

    CAS  Google Scholar 

  6. M. Tiryakioğlu: Mater. Sci. Eng. A, 2006, vol. A427, pp. 154–59.

    Google Scholar 

  7. J. Campbell: The Bifilm Concept: Prospects of Defect-Free Castings, World Foundry Congress, Chennai, India, 2008.

    Google Scholar 

  8. X. Yang, X. Huang, X. Dai, J. Campbell, and R.J. Grant: Mater. Sci. Technol., 2006, vol. 22, pp. 561–70.

    Article  CAS  Google Scholar 

  9. M.K. Surappa, E. Blank, and J.C. Jaquet: Scripta Metall., 1986, vol. 20, pp. 1281–86.

    Article  CAS  Google Scholar 

  10. L. Liu and F.H. Samuel: J. Mater. Sci., 1998, vol. 33, pp. 2269–81.

    Article  CAS  ADS  Google Scholar 

  11. G.E. Byczynski and J. Campbell: in Advances in Aluminum Casting Technology II, M. Tiryakioğlu and J. Campbell, eds., ASM INTERNATIONAL, Materials Park, OH, 2002, pp. 65–74.

    Google Scholar 

  12. J.A. Francis and G.M. Delphine Cantin: Mater. Sci. Eng. A, 2005, vol. A407, pp. 322–29.

    CAS  Google Scholar 

  13. Z. Ma, A.M. Samuel, F.H. Samuel, H.W. Doty, and S. Valtierra: Mater. Sci. Eng. A, 2008, vol. A490, pp. 36–51.

    CAS  Google Scholar 

  14. T.R. Finlayson, J.R. Griffiths, D.M. Viano, M.E. Fitzpatrick, E.C. Oliver, and Q.G. Wang: Shape Casting: 2nd Int. Symp., P.N. Crepeau, M. Tiryakioğlu, and J. Campbell, eds., TMS, Warrendale, PA, 2007, pp. 127–34.

  15. C.H. Cáceres and J.R. Griffiths: Acta Mater., 1996, vol. 44, pp. 25–33.

    Article  Google Scholar 

  16. C.H. Cáceres: Int. J. Cast Met. Res., 1998, vol. 10, pp. 293–99.

    Google Scholar 

  17. M. Tiryakioğlu, J.T. Staley, and J. Campbell: Mater. Sci. Eng. A, 2004, vol. A368, pp. 231–38.

    Google Scholar 

  18. M. Tiryakioğlu, J. Campbell, and J.T. Staley: Mater. Sci. Eng. A, 2004, vol. A368, pp. 205–11.

    Google Scholar 

  19. M. Tiryakioğlu, J.T. Staley, Jr., and J. Campbell: Mater. Sci. Eng. A, 2008, vol. A487, pp. 383–87.

    Google Scholar 

  20. W. Weibull: J. Appl. Mech., 1951, vol. 8, pp. 293–97.

    Google Scholar 

  21. N.R. Green and J. Campbell: Mater. Sci. Eng. A, 1993, vol. A137, pp. 261–66.

    Google Scholar 

  22. H. Zahedi, M. Emamy, A. Razaghian, M. Mahta, J. Campbell, and M. Tiryakioğlu: Metall. Mater. Trans. A., 2007, vol. 38A, pp. 659–70.

    Article  CAS  Google Scholar 

  23. J. Mi, R. Harding, and J. Campbell: Metall. Mater. Trans. A, 2004, vol. 35A, pp. 2893–2902.

    Article  CAS  Google Scholar 

  24. T. Din, A.K.M.B. Rashid, and J. Campbell: Mater. Sci. Technol., 1996, vol. 12, pp. 269–73.

    CAS  Google Scholar 

  25. M. Drouzy, S. Jacob, and M. Richard: AFS Int. Cast Met. J., 1980, vol. 5, pp. 43–50.

    CAS  Google Scholar 

  26. G. Dieter: Mechanical Metallurgy, McGraw-Hill, New York, NY, 1988, pp. 340–43.

    Google Scholar 

  27. D.L. McLellan: J. Test. Eval., 1980, vol. 8, pp. 170–76.

    Google Scholar 

  28. U.F. Kocks: J. Eng. Mater. Technol., 1976, vol. 98, pp. 76–85.

    CAS  Google Scholar 

  29. H. Mecking and U.F. Kocks: Acta Metall., 1981, vol. 29, pp. 1865–75.

    Article  CAS  Google Scholar 

  30. E. Voce: Metallurgia, 1955, vol. 51, pp. 219–26.

    Google Scholar 

  31. C. Nyahumwa, N.R. Green, and J. Campbell: in Advances in Aluminum Casting Technology, M. Tiryakioğlu and J. Campbell, eds., ASM INTERNATIONAL, Materials Park, OH, 1998, pp. 225–33.

    Google Scholar 

  32. C. Nyahumwa, N.R. Green, and J. Campbell: J. Mech. Behav. Mater., 1998, vol. 9, pp. 227–35.

    CAS  Google Scholar 

  33. K.J. Oswalt and A. Maloit: AFS Trans., 1990, vol. 98, pp. 865–77.

    CAS  Google Scholar 

  34. D.L. McLellan and M.M. Tuttle: Manufacturing Methodology Improvement for Aluminum Casting Ductility, AFWAL-TR-82-4135, The Boeing Company, Seattle, WA, Dec. 1982.

  35. J.G. Kaufman and E.L. Rooy: Aluminum Alloy Castings: Properties, Processes and Applications, ASM INTERNATIONAL, Materials Park, OH, 2004, pp. 69–122.

    Google Scholar 

  36. S. Kumai, T. Tanaka, H. Zhu, and A. Sato: Mater. Trans., 2004, vol. 45, pp. 1706–13.

    Article  CAS  Google Scholar 

  37. K.A. Yoshida: M.Sc. Thesis, University of Texas–El Paso, El Paso, TX, 1995.

  38. S. Mashl: Bodycote Corporation, Andover, MA, private communication, 2008.

  39. J.D. Gruner: Northrop Internal Report No. NOR 94-026, Northrop Corporation, Hawthrone, CA, 1994.

  40. M. Tiryakioğlu and N.D. Alexopoulos: Metall. Mater. Trans. A, vol. 39A, pp. 2772–80.

  41. M.W. Ozelton, S.J. Mocarski, and P.G. Porter: Durability and Damage Tolerance of Aluminum Castings, WL-TR-91-4111, Northrop Corporation, Hawthrone, CA, 1991.

  42. J.T. Staley: Alcoa Progress Report No. 13-HP160, Alcoa, Alcoa Center, PA, 1966.

  43. K.J. Oswalt and Y. Lii: Manufacturing Methods for Process Effects on Aluminum Casting Allowables, AFWAL-TR-84-4117, Northrop Corporation, Hawthrone, CA, 1985.

  44. Q.G. Wang and C.H. Cáceres: Proc. Int. Conf. on Solidification of Light Alloys, Gold Cost, Queensland, Aug. 30–31, 1995, pp. 33–37.

  45. T.L. Reinhart: Presented at Aeromat, Anaheim, CA, 1994.

  46. Y.N. Kwon, K. Lee, and S. Lee: Key Eng. Mater., 2007, vols. 345–346, pp. 633–36.

    Article  Google Scholar 

  47. K.H. Lee, Y.N. Kwon, and S.H. Lee: J. Kor. Inst. Met. Mater., 2007, vol. 45, pp. 18–29.

    CAS  Google Scholar 

  48. P.R. Austen and H.M. Williamson: J. Aust. Inst. Met., 1975, vol. 20, pp. 39–43.

    CAS  Google Scholar 

  49. D.S. Saunders, B.A. Parker, and J.R. Griffiths: J. Aust. Inst. Met., 1975, vol. 20, pp. 33–38.

    CAS  Google Scholar 

  50. J. Campbell: Castings, 2nd ed., Elsevier, New York, NY, 2003, pp. 274–75.

  51. Q.G. Wang and C.H. Cáceres: Mater. Sci. Eng. A, 1998, vol. A241, pp. 72–82.

    CAS  Google Scholar 

  52. E.W. Miguelucci: AFS Trans., 1985, vol. 93, pp. 913–16.

    Google Scholar 

  53. M. Wierzbinska and J. Sieniawski: Int. J. Cast. Met. Res., 2004, vol. 17, pp. 267–70.

    Article  CAS  Google Scholar 

  54. R. Doglione, J.L. Douziech, C. Berdin, and D. Francois: Mater. Sci. Forum., 1996, vols. 217–222, pp. 1435–40.

    Article  Google Scholar 

  55. C. Meyers and J.S. Chou: AFS Trans., 1991, vol. 99, pp. 165–73.

    Google Scholar 

  56. J. Campbell: Metall. Mater. Trans. B., 2006, vol. 37B, pp. 857–63.

    Article  ADS  CAS  Google Scholar 

  57. M.C. Flemings: Solidification Processing, McGraw-Hill, New York, NY, 1974, pp. 146–54.

    Google Scholar 

  58. G.T. Hahn and A.R. Rosenfield: in Applications Related Phenomena in Titanium Alloys, ASTM Special Technical Publication No. 432, ASTM, Philadelphia, PA, 1968, pp. 5–32.

  59. C.Q. Chen and J.F. Knott: Met. Sci., 1981, vol. 15, pp. 357–64.

    Article  CAS  Google Scholar 

  60. F. Barlat: Alcoa Internal Report No. 04-115, Alcoa, Alcoa Center, PA, 2004.

  61. M. Tiryakioğlu: Mater. Sci. Eng. A, 2007, vol. A497, pp. 512–14.

    Google Scholar 

  62. M.O. Speidel: 6th Eur. Non-Ferrous Metals Industry Colloquium of the CAEF, 1982, pp. 65–78.

  63. G.D. Scott, B.A. Cheney, and D.A. Granger: in Technology for Premium Quality Castings, E. Dunn and D.R. Durham, eds., TMS, Warrandale, PA, 1988, pp. 123–49.

  64. J.T. Staley: in Properties Related to Fracture Toughness, ASTM STP. 605, 1976, pp. 71–96.

  65. K.V. Jata and E.A. Starke, Jr.: Metall. Trans. A., 1986, vol. 17A, pp. 1011–26.

    ADS  CAS  Google Scholar 

  66. S. Kang and N.J. Grant: Mater. Sci. Eng., 1985, vol. 72, pp. 155–62.

    Article  CAS  Google Scholar 

  67. N. Kamp, I. Sinclair, and M.J. Starink: Metall. Mater. Trans A., 2002, vol. 33A, pp. 1125–36.

    Article  CAS  ADS  Google Scholar 

  68. D.J. Lloyd: Int. Mater. Rev., 1994, vol. 39, pp. 1–23.

    CAS  Google Scholar 

  69. W.H. Hunt, Jr.: Ph.D. Dissertation, Carnegie Mellon University, Pittsburgh, PA, 1992.

  70. J. Campbell: Mater. Sci. Technol., 2006, vol. 22, pp. 127–45 and 999–1008.

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Authors and Affiliations

  1. Department of Engineering, Robert Morris University, Moon Township, PA, 15108, USA

    Murat Tiryakioğlu (Professor)

  2. Department of Metallurgy and Materials, University of Birmingham, Edgbaston, B15 2TT, United Kingdom

    John Campbell (Professor Emeritus)

  3. Department of Financial and Management Engineering, University of the Aegean, 821 00, Chios, Greece

    Nikolaos D. Alexopoulos (Assistant Professor)

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  1. Murat Tiryakioğlu
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  2. John Campbell
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Correspondence to Murat Tiryakioğlu.

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Manuscript submitted July 1, 2008.

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Tiryakioğlu, M., Campbell, J. & Alexopoulos, N.D. On the Ductility of Cast Al-7 Pct Si-Mg Alloys. Metall Mater Trans A 40, 1000–1007 (2009). https://doi.org/10.1007/s11661-008-9762-4

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