Abstract
The effect of friction stir processing on the superplastic behavior of extruded Al-4Mg-1Zr was examined at 350 °C to 600 °C and at initial strain rates of 1×10−3 to 1 s−1. A combination of a fine grain size of 1.5 μm and high-angle grain boundaries in the friction stir-processed (FSP) alloy led to considerably enhanced superplastic ductility, much-reduced flow stress, and a shift to a higher optimum strain rate and lower optimum temperature. The as-extruded alloy exhibited the highest superplastic ductility of 1015 pct at 580 °C and an initial strain rate of 1×10−2s−1, whereas a maximum elongation of 1280 pct was obtained at 525 °C and an initial strain rate of 1×10−1s−1 for the FSP alloy. The FSP alloy exhibited enhanced superplastic deformation kinetics compared to that predicted by the constitutive relationship for superplasticity in fine-grained aluminum alloys. A possible origin for enhanced superplastic deformation kinetics in the FSP condition is proposed.
Similar content being viewed by others
References
N.E. Paton, C.H. Hamilton, J. Wert, and M. Mahoney: J. Met., 1982, vol. 34, pp. 21–27.
J. Xinggang, C. Jiangzhong, and M. Longxiang: Acta Metall. Mater., 1993, vol. 41, pp. 2721–27.
V.M. Segal: Mater. Sci. Eng. A, 1995, vol. A197, pp. 157–64.
R.Z. Valiev: Mater. Sci. Eng. A, 1993, vol. A168, pp. 141–48.
R.S. Mishra, M.W. Mahoney, S.X. McFadden, N.A. Mara, and A.K. Mukherjee: Scripta Mater., 2000, vol. 42, pp. 163–68.
R.S. Mishra and M.W. Mahoney: Mater. Sci. Forum, 2001, vols. 357–359, pp. 507–12.
W.M. Thomas, E.D. Nicholas, J.C. Needham, M.G. Murch, P. Templesmith, and C.J. Dawes: G.B. Patent Application No. 9125978.8, Dec. 1991.
S. Benavides, Y. Li, L.E. Murr, D. Brown, and J.C. McClure: Scripta Mater., 1999, vol. 41, pp. 809–15.
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.
C.G. Rhodes, M.W. Mahoney, W.H. Bingel, R.A. Spurling, and C.C. Bampton: Scripta Mater., 1997, vol. 36, pp. 69–75.
K.V. Jata and S.L. Semiatin: Scripta Mater., 2000, vol. 43, pp. 743–49.
Z.Y. Ma, R.S. Mishra, and M.W. Mahoney: Acta Mater., 2002, vol. 50, pp. 4419–30.
Z.Y. Ma and R.S. Mishra: Acta Mater., 2003, vol. 51, pp. 3551–69.
I. Charit, R.S. Mishra, and M.W. Mahoney: Scripta Mater., 2002, vol. 47, pp. 631–36.
M. Mahoney, R.S. Mishra, T. Nelson, J. Flintoff, R. Islamgaliev, and Y. Hovansky: in Friction Stir Welding and Processing, K.V. Jata, M.W. Mahoney, R.S. Mishra, and D.P. Field, eds., TMS, Warrendale, PA, 2001, pp. 183–94.
T.R. McNelley and M.E. McMahon: Metall. Mater. Trans. A, 1997, vol. 28A, pp. 1879–87.
N. Ridley, E. Cullen, and F.J. Humphreys: in Superplasticity and Superplastic Forming, A.K. Ghosh and T.R. Bieler, eds., TMS, Warrendale, PA, 1998, pp. 65–74.
R. Grimes, R.J. Dashwood, A.W. Harrison, and H.M. Flower: Mater. Sci. Technol., 2000, vol. 16, pp. 1334–39.
R.J. Dashwood, R. Grimes, A.W. Harrison, and H.M. Flower: Mater. Sci. Forum, 2001, vols. 357–359, pp. 339–44.
Z.Y. Ma, R.S. Mishra, M.W. Mahoney, and G. Grimes: Mater. Sci. Eng. A, 2003, vol. A351, pp. 148–53.
T.R. Chen and J.C. Huang: Metall. Mater. Trans. A, 1999, vol. 30A, pp. 53–64.
M.T. Perez-Prado, G. Gonzalez-Doncel, O.A. Ruano, and T.R. McNelley: Acta Mater., 2001, vol. 49, pp. 2259–68.
Y.N. Wang and J.C. Haung: Scripta Mater., 2003, vol. 48, pp. 1117–22.
M.G. Zelin and A.K. Mukherjee: Acta Metall. Mater., 1995, vol. 43, pp. 2359–72.
M.G. Zelin: J. Mater. Sci. Lett., 1996, vol. 15, pp. 2068–70.
K. Matsuki, T. Iwaki, M. Tokizawa, and Y. Murakami: Mater. Sci. Technol., 1991, vol. 7, pp. 513–19.
T. Watanabe: Metall. Trans. A, 1983, vol. 14A, pp. 531–45.
T. Watanabe, M. Yamada, S. Shima, and S. Karashima: Phil. Mag., 1979, vol. 40, pp. 667–83.
H. Salem, A. Reynolds, and J. Lyons: Lightweight Alloys for Aerospace Applications, K. Jata, E.W. Lee, W. Frazier, and N.J. Kim, eds., TMS, Warrendale, PA, 2001, pp. 141–50.
C.G. Rhodes, M.W. Mahoney, W.H. Bingel, and M. Calabrese: Scripta Mater., 2003, vol. 48, pp. 1451–55.
E. Nes: in Superplasticity, B. Baudelet and M. Suéry, eds., SNRS, Grenoble, France, 1985, ch. 7.
S.J. Hales and T.R. McNelley: Acta Mater., 1988, vol. 36, pp. 1229–39.
T.G. Nieh, R. Kaibyshev, L.M. Hsiung, N. Nguyen, and J. Wadsworth: Scripta Mater., 1997, vol. 36, pp. 1011–16.
E. Nes: J. Mater. Sci., 1978, vol. 13, pp. 2052–55.
E. Nes: Met. Sci., 1979, vol. 13, pp. 211–15.
R.H. Bricknell and J.W. Edington: Metall. Trans. A, 1979, vol. 10A, pp. 1257–63.
H. Kokawa, T. Watanabe, and S. Karashima: Scripta Metall., 1983, vol. 17, pp. 1155–59.
V.V. Astanin, O.A. Kaibyshev, and S.N. Faizova: Scripta Metall., 1991, vol. 25, pp. 2663–68.
M.G. Zelin, T.R. Bieler, and A.K. Mukherjee: Metall. Trans. A, 1993, vol. 24A, pp. 1208–12.
M.G. Zelin, R.W. James, and A.K. Mukherjee: J. Mater. Sci. Lett., 1993, vol. 12, pp. 176–78.
R.S. Mishra, T.R. Bieler, and A.K. Mukherjee: Acta Mater., 1995, vol. 43, pp. 877–91.
L. Geng, T. Imai, J.F. Mao, M. Takagi, and C.K. Yao: Mater. Sci. Technol., 2001, vol. 17, pp. 187–94.
M. Mabuchi and K. Higashi: Phil. Mag. Lett., 1994, vol. 70, pp. 1–6.
M. Mabuchi and K. Higashi: Acta Mater., 1999, vol. 47, pp. 1915–22.
T.G. Nieh, P.S. Gilman, and J. Wadsworth: Scripta Metall., 1985, vol. 19, pp. 1375–78.
W.J. Kim and S.H. Hong: J. Mater. Sci., 2000, vol. 35, pp. 2779–84.
W.J. Kim, K. Higashi, and J.K. Kim: Mater. Sci. Eng. A, 1999, vol. A260, pp. 170–77.
R. Kaibyshev, F. Musin, D. Gromov, T.G. Nieh, and D.R. Lesuer: Scripta Mater., 2002, vol. 47, pp. 569–75.
T.G. Nieh, L.M. Hsiung, J. Wadsworth, and R. Kaibyshev: Acta Mater., 1998, vol. 46, pp. 2789–2800.
K.T. Park, D.Y. Hwang, Y.K. Lee, Y.K. Kim, and D.H. Shin: Mater. Sci. Eng. A, 2003, vol. A341, pp. 273–81.
S. Lee, M. Furukawa, Z. Horita, and T.G. Langdon: Mater. Sci. Eng. A, 2003, vol. A342, pp. 294–301.
R.S. Mishra, R.Z. Valiev, S.X. McFadden, R.K. Islamgaliev, and A.K. Mukherjee: Phil. Mag. A, 2001, vol. 81, pp. 37–48.
A.K. Mukherjee, R.S. Mishra, and T.R. Bieler: Mater. Sci. Forum, 1997, vols. 233–234, pp. 217–34.
J. Koike, K. Mabuchi, and K. Higashi: Acta Metall. Mater., 1995, vol. 43, pp. 199–206.
Smithells Metals Reference Book, 7th ed., E.A. Brandes and G.B. Brook, eds., Butterworth-Heinemann, Oxford, United Kingdom, 1997, p. 41.
A.K. Mukherjee, J.E. Bird, and J.E. Dorn: Trans. ASM, 1969, vol. 62, pp. 155–79.
O.D. Sherby and P.M. Burke: Progr. Mater. Sci., 1967, vol. 13, pp. 325–90.
K.L. Murty, F.A. Mohamed, and J.E. Dorn: Acta Metall., 1972, vol. 20, pp. 1009–18.
H. Oikawa, K. Sugawara, and S. Karashima: Trans. JIM, 1978, vol. 19, pp. 611–16.
T.G. Nieh and J. Wadsworth: Mater. Sci. Forum, 1997, vols. 243–245, pp. 257–66.
H. Iwasaki, T. Mori, M. Mabuchi, and K. Higashi: Metall. Mater. Trans. A, 1998, vol. 29A, pp. 677–83.
G.Q. Tong and K.C. Chan: Mater. Sci. Eng. A, 2000, vol. A286, pp. 218–24.
W.J. Kim and O.D. Sherby: Acta Mater., 2000, vol. 48, pp. 1763–74.
Y. Li and TG. Langdon: Acta Mater., 1999, vol. 47, pp. 3395–3403.
F.U. Enikeev: Mater. Sci. Eng. A, 2000, vol. A276, pp. 22–31.
W.J. Kim, J.H. Yeon, D.H. Shin, and S.H. Hong: Mater. Sci. Eng. A, 1999, vol. A269, pp. 142–51.
A.K. Mukherjee: in Grain Boundaries in Engineering Materials, J.L. Walter et al., eds., Claiton Publishing, Baton Rouge, LA, 1975, p. 93.
A. Arieli and A.K. Mukherjee: Mater. Sci. Eng., 1980, vol. 45, pp. 61–70.
A. Ball and M.M. Hutchison: Met. Sci. J., 1969, vol. 3, pp. 1–7.
H. Kokawa, T. Watanabe, and S. Karashima: Phil. Mag. A, 1981, vol. 44, pp. 1239–54.
A.F. Norman, I. Brough, and P.B. Prangnell: Mater. Sci. Forum, 2000, vols. 331–337, pp. 1713–18.
M. Eddahbi, T.R. McNelley, and OA. Ruano: Metall. Mater. Trans. A, 2001, vol. 32A, pp. 1093–1102.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Ma, Z.Y., Mishra, R.S., Mahoney, M.W. et al. Effect of friction stir processing on the kinetics of superplastic deformation in an Al-Mg-Zr alloy. Metall Mater Trans A 36, 1447–1458 (2005). https://doi.org/10.1007/s11661-005-0237-6
Received:
Issue Date:
DOI: https://doi.org/10.1007/s11661-005-0237-6