Abstract
On the basis of computer-calculated yield functions, the work hardening of 〈100〉 textured Cu-0.64 at % Co-0.48 at % Si and 〈111〉 textured polycrystalline copper wires were studied by simultaneous torsion and extension and by pure extension. Representing the work hardening by resolved shear stress-resolved shear strain curves, the rate of hardening is significantly lower for torsion than for pure extension. This behaviour is explained by the operation of different slip systems activated in the two modes of deformation. In the 〈100〉 textured Cu-Co-Si wires, heterogeneous plastic deformation was observed beyond about 80% shear strain.
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U. F. Kocks andG. R. Canova, “Deformation of Polycrystals: Mechanisms and Microstructures”, 2nd Riso International Symposium on Metallurgy and Materials Science, 1981, edited by N. Hansen, A. Horsewell, T. Leffers and H. Lilholt (Riso National Laboratory) p. 35.
G. I. Taylor,J. Inst. Met. 62 (1983) 307.
J. F. W. Bishop andR. Hill,Phil. Mag. 42 (1951) 414.
Idem. ibid. 42 (1951) 1298.
L. S. Tóth, I. Kovács, J. Lendvai andB. Albert,J. Mater. Sci. 19 (1984) 683.
L. S. Tóth andI. Kovács,J. Mater. Sci. in press.
I. Kovács,Acta Metall. 15 (1967) 1731.
L. S. Tóth andI. Kovács,J. Mater. Sci. 17 (1982) 43.
A. Nádai, “Theory of Flow and Fracture of Solids”, 2nd Edition, Vol. I (McGraw Hill, New York, 1950) p. 347.
S. C. Shrivastava, J. J. Jonas andG. Canova,J. Mech. Phys. Solids 30 (1982) 75.
R. O. Williams,Trans. AIME 224 (1962) 129.
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Tóth, L.S., Lendvai, J., Kovács, I. et al. The plastic behaviour of 〈100〉 and 〈111〉 textured polycrystalline metals during simultaneous torsion and extension. J Mater Sci 20, 3983–3987 (1985). https://doi.org/10.1007/BF00552388
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DOI: https://doi.org/10.1007/BF00552388