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Effect of additional elements on the mechanical and microstructural properties of copper polycrystal under dynamic compression

Published online by Cambridge University Press:  31 January 2011

P. Ancrenaz ,
C. Nguy  and
C. Servant
P. Ancrenaz
Affiliation:
DGA/CREA, 16 Bis Avenue Prieur de la Côte d'Or, 94114 Arcueil, France
C. Nguy
Affiliation:
DGA/CREA, 16 Bis Avenue Prieur de la Côte d'Or, 94114 Arcueil, France
C. Servant
Affiliation:
ISMA, Laboratoire de Métallurgie Structurale, URA CNRS 1107, Université de Paris-Sud, 91405 Orsay Cedex, France
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Abstract

The effect of additional elements (Si and Co) on the behavior of copper polycrystalline alloy under static and dynamic compression was studied. Relations between the deformation microstructure and the mechanical behavior have been investigated. In the Cu–Si alloys, the SFE depends on additional element content and the SFE level controls the dissociation of perfect dislocations into partial ones. In the Cu–Co alloy, Co induces precipitation and the dislocation repartition is uniform if the precipitates are coherent. When the precipitates become semicoherent, there is formation of dislocation walls around the precipitates.

Type
Articles
Information
Journal of Materials Research , Volume 7 , Issue 9 , September 1992 , pp. 2387 - 2394
Copyright
Copyright © Materials Research Society 1992

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