Tailoring stacking fualt energy for high ductility and high strength in ultra-fine grained Cu and Its alloy


Zhao, Y.H., Zhu, Y.T., Liao, X.Z., Horita, Z. and Langdon, T.G. (2006) Tailoring stacking fualt energy for high ductility and high strength in ultra-fine grained Cu and Its alloy. Applied Physics Letters, 89, (121906), 121906/1- 121906/3. (doi:10.1063/1.2356310).

Download

Full text not available from this repository.

Original Publication URL: http://dx.doi.org/10.1063/1.2356310

Description/Abstract

Bulk ultrafine grained (UFG) materials produced by severe plastic deformation often have low ductility. Here the authors report that simultaneous increases in ductility and strength can be achieved by tailoring the stacking fault energy (SFE) via alloying. Specifically, UFG bronze (Cu 10 wt. % Zn) with a SFE of 35 mJ/m2 was found to have much higher strength and ductility than UFG copper with a SFE of 78 mJ/m2. Accumulations of both twins and dislocations during tensile testing play a significant role in enhancing the ductility of the UFG bronze. This work demonstrates a strategy for designing UFG alloys with superior mechanical properties.

Item Type: Article
Related URLs:
Subjects: T Technology > TN Mining engineering. Metallurgy
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences > Engineering Materials & Surface Engineering
ePrint ID: 43704
Date Deposited: 26 Jan 2007
Last Modified: 27 Mar 2014 18:28
URI: http://eprints.soton.ac.uk/id/eprint/43704

Actions (login required)

View Item View Item