Mechanical and electrical responses of nanostructured Cu–3 wt%Ag alloy fabricated by ECAP and cold rolling

This paper investigated the mechanical and electrical responses of nanostructured Cu–3 wt%Ag alloy as a function of the strain imposed by a combination of equal channel angular pressing and subsequent cold rolling. The influence of cold rolling on the microstructural change was observed to be pronou...

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Bibliographic Details
Published inJournal of alloys and compounds Vol. 504; pp. S448 - S451
Main Authors Ko, Young Gun, Namgung, Seung, Lee, Byung Uk, Shin, Dong Hyuk
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.08.2010
Subjects
Cu–3 wt%Ag alloy
Electrical conductivity
Mechanical properties
Nanostructure
Mechanical properties
Cu–3 wt%Ag alloy
Nanostructure
Electrical conductivity
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Summary:This paper investigated the mechanical and electrical responses of nanostructured Cu–3 wt%Ag alloy as a function of the strain imposed by a combination of equal channel angular pressing and subsequent cold rolling. The influence of cold rolling on the microstructural change was observed to be pronounced, resulting in the occurrence of lamellar band structure. Room-temperature tension tests results revealed that, as the amount of strain increased, the tensile strength of the nanostructured Cu–3 wt%Ag alloy increased while losing its ductility. The electrical conductivity slightly decreased with increasing amount of strain imposed. This phenomenon was mainly attributed to the nano-grained structure together with the non-equilibrium state of the grain boundaries.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2010.02.198