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), 775-778. (doi:10.1016/j.scriptamat.2007.12.028).
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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 α in the Taylor equation is strongly influenced by the stacking fault energy.
|Keywords:||equal-channel angular pressing, severe plastic deformation, stacking fault energy, silver, taylor equation|
|Subjects:||T Technology > TN Mining engineering. Metallurgy
T Technology > TA Engineering (General). Civil engineering (General)
|Divisions:||University Structure - Pre August 2011 > School of Engineering Sciences > Engineering Materials & Surface Engineering
|Date Deposited:||05 Dec 2008|
|Last Modified:||27 Mar 2014 18:45|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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