Abstract
A back extrusion technique was used to study the isothermal flow behavior of partially remelted Sn-15.6 pct Pb through thin-walled sections. Shear rates between 50 and 300 s−1 were used to produce cylinders with walls ranging from 1 to 2.5 mm in thickness. Back extrusion was found to be an unsuitable technique for characterizing the rheological behavior of high solid fraction semi-solid material through thin-walled sections. Inhomogeneous flow occurred, with the extruded product having a higher fraction of liquid than the original nonextruded sample. The fraction of liquid in the wall of the extruded product was found to be a function of the extrusion ratio, increasing with decreasing wall thickness.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
T.G. Nguyen, D. Favier, and M. Suery: Int. J. Plast., 1994, vol. 10, pp. 663–93.
J.F. Seconde and M. Suery: J. Mater. Sci., 1984, vol. 19, pp. 3995–4006.
M. Suery and M.C. Flemings: Metall. Trans. A, 1982, vol. 13A, pp. 1809–19.
C.L. Martin, S.B. Brown, D. Favier, and M. Suery: Mater. Sci. Eng. A, 1995, pp. 112–22.
W.R. Loue, M. Suery, and J.L. Qyerbes: Proc. 2nd Int. Conf. on the Semi-Solid Processing of Alloys and Composites, S.B. Brown and M.C. Flemings, eds., TMS, Warrendale, PA, 1992, pp. 266–75.
E. Tzimas, A. Zavaliangos, A. Lawley, and C. Pumberger: 4th Int. Conf. on Semi-Solid Processing of Alloys and Composites, D.H. Kirkwood and P. Kapranos, eds., The University of Sheffield, Sheffield, England, 1996, pp. 40–46.
G. Wan and P. R. Sahm: Proc. 2nd. Int. Conf. on the Semi-Solid Processing of Alloys and Composites, S. B. Brown and M. C. Flemings, eds., TMS, Warrendale, PA, 1992, pp. 328–35.
L. Salvo, W.R. Loue, and M. Suery: Proc. 3rd Int. Conf. on Processing of Semi-Solid Alloys and Composites, Institute of Industrial Science, University of Tokyo, Tokyo, 1994, pp. 261–70.
W.R. Loue and M. Suery: Mater. Sci. Eng. A, 1995, vol. 203, pp. 1–13.
N. Nicholas, W. Haws, L. Lane, and J. Marder: 4th Int. Conf. on Semi-Solid Processing of Alloys and Composites, D.H. Kirkwood and P. Kapranos, eds., The University of Sheffield, Sheffield, England, 1996, pp. 215–20.
M. Garat, S. Blais, C. Pluchon, and W.R. Loue: 5th Int. Conf. on Semi-Solid Processing of Alloys and Composites, A. K. Bhasin, J.J. Moore, K.P. Young, and S. Midson, eds., Colorado School of Mines, Golden, Co, 1998, pp. 199–213.
R. Fink, and T. Witulski: 5th Int. Conf. on Semi-Solid Processing of Alloys and Composites, A.K. Bhasin, J.J. Moore, K.P. Young, and S. Midson, eds., Colorado School of Mines, Golden, CO, 1998, pp. 557–64
K.P. Young and A.A. Koch: U.S. Patent Number 4,938,052, July 3, 1990, Alumax, Inc., Norcross, GA.
V. Laxmanan and M.C. Flemings: Metall. Trans. A, 1980, vol. 11A, pp. 1927–37.
D.A. Pinsky, P.O. Charreyron, and M.C. Flemings: Metall. Trans. B, 1984, vol. 15B, pp. 173–81.
P. Secordel, E. Valette, and F. Leroy: Proc. 2nd Int. Conf. on the Semi-Solid Processing of Alloys and Composites, S.B. Brown and M.C. Flemings, eds., TMS, Warrendale, PA, 1992, pp. 306–15.
S. Sannes, H. Gjestland, L. Arnberg, and J.K. Solberg: Proc. 3rd Int. Conf. on Processing of Semi-Solid Alloys and Composites, Institute of Industrial Science, University of Tokyo, Tokyo, 1994, pp. 271–80.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Basner, T., Sachdev, A. & Pehlke, R. Thin-wall back extrusion of partially remelted semi-solid Sn-Pb. Metall Mater Trans A 31, 57–62 (2000). https://doi.org/10.1007/s11661-000-0052-z
Received:
Issue Date:
DOI: https://doi.org/10.1007/s11661-000-0052-z