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Microstructure and yield strength of severely deformed silver

Gubicza, Jenő, Chinh, Nguyen Q., Lábár, János L., Hegedüs, Zoltán, Xu, Cheng and Langdon, Terence G. (2008) Microstructure and yield strength of severely deformed silver Scripta Materialia, 58, (9), pp. 775-778. (doi:10.1016/j.scriptamat.2007.12.028).

Record type: Article


High-purity silver was processed by equal-channel angular pressing (ECAP) to eight passes, giving an average grain size of 250 nm. The densities of dislocations and twins were measured and compared with reported values for other face-centered cubic metals processed by ECAP. The results show the saturation yield strength correlates to the dislocation density according to the Taylor equation, and that the value of the geometrical parameter ? in the Taylor equation is strongly influenced by the stacking fault energy.

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Published date: May 2008
Keywords: equal-channel angular pressing, severe plastic deformation, stacking fault energy, silver, taylor equation
Organisations: Engineering Mats & Surface Engineerg Gp


Local EPrints ID: 64175
ISSN: 1359-6462
PURE UUID: dc06d3ad-0425-42fb-b8b2-87f356214b93
ORCID for Terence G. Langdon: ORCID iD

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Date deposited: 05 Dec 2008
Last modified: 17 Jul 2017 14:14

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Author: Jenő Gubicza
Author: Nguyen Q. Chinh
Author: János L. Lábár
Author: Zoltán Hegedüs
Author: Cheng Xu

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