Abstract
The phenomenon of internal stress superplasticity is reviewed and the theoretical mechanical foundations of current mechanism models of the process examined. These models are shown to be based on two different principles: i.e. a biased internal plastic flow, or an enhanced creep generated by a superposition of internal and external stresses. Mechanical test data is shown to be more consistent with enhanced plasticity models in zinc and metal matrix composites for deformation during thermal cycling.
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References
K.A. Padmanabhan and G.J. Davies, Superplasticity, (Springer Verlag, 1980)
O.D. Sherby, R.D. Caliguri, E.S. Kayali and R.A. White, in Advances in Metal Processing. Eds. J.J. Burke, R. Mehrabian and V. Weiss, (Plenum 1981), p. 133.
S.T. Konobe'evsky, N.F. Pravdyuk and V.I. Kutaitsev, in Proc. 1stInter. Conf. on the Peaceful use of Atomic Energy, Vol. 7, (United Nations, Geneva 1956), p. 433.
A.C. Roberts and A.H. Cottrell, Phil. Mag. 1, 711 (1956).
A.C. Roberts, Acta Metall. 8, 817 (1960).
A.G. Young, K.M. Gardiner and W.B. Rotsey, J. Nucl. Mater. 2, 234 (1960).
R.G. Anderson and J.F.W. Bishop, in Symp. on Uranium and Graphite, paper 3, (Inst. of Metals, London 1962) p. 17.
R.C. Lobb, E.C. Sykes and R.H. Johnson, Metal Sci. J. 6 33 (1972).
M.Y. Wu, J. Wadsworth and O.D. Sherby, Metall. Trans, 18A, 451(1987).
W. Boas and R.W.K. Honeycombe, Proc. Roy. Soc. Lon. 186A, 57 (1946).
W. Boas and R.W.K. Honeycombe, Proc. Soc. Lon. 188A, 427 (1947).
R.H. Johnson and R.W.K. Honeycombe, J. Less Common Metals 4, 226 (1962).
M.Y. Wu and O.D. Sherby, Scipta Metal. 18, 773 (1984).
J.C. Le Flour and R. Locicero, Scripta Metall. 21, 1071 (1987).
S.M. Pickard and B. Derby, Acta Metall. to be published.
A. Sauveur, Trans AIMME 70, 3 (1924).
L.F. Porter and P.C. Rosenthal, Acta Metall. 7, 504 (1959).
A.G. Guy and J.E. Parwick, Trans AIMME 221, 802 (1961).
S.H. Hong, O.D. Sherby, S.P.D. Divecha, S.D. Karmarkar and B.A. MacDonald, J. Compos. Mater. 22, 102 (1988).
G.W. Greenwood and R.H. Johnson, Proc. Roy. Lon. 283A, 403 (1965).
B. Derby, Scripta Metall. 19, 703 (1985).
S.M. Pickard and B. Derby, in Proc. 9thRisø Inter. Symp.: Mechanical and Physical Behaviour of Metallic and Ceramic Composites, Edited by S.I. Andersen, H. Lilholt and O.B. Pedersen (Risø National Lab., Rosskilde Denmark 1988).
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Derby, B. The Mechanism of Internal Stress Superplasticity. MRS Online Proceedings Library 196, 115–120 (1990). https://doi.org/10.1557/PROC-196-115
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DOI: https://doi.org/10.1557/PROC-196-115