Enhanced strength–ductility synergy in nanostructured Cu and Cu–Al alloys processed by high-pressure torsion and subsequent annealing


An, X.H, Wu, S.D, Zhang, Z. F, Figueiredo, R.B., Gao, N. and Langdon, T.G. (2012) Enhanced strength–ductility synergy in nanostructured Cu and Cu–Al alloys processed by high-pressure torsion and subsequent annealing. Scripta Materialia, 66, (5), 227-230. (doi:10.1016/j.scriptamat.2011.10.043).

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Description/Abstract

Nanostructured Cu and Cu–Al alloys processed by high-pressure torsion were isochronally annealed to investigate the effects of the stacking fault energy (SFE) on strength and ductility. All metals exhibit a similar general trend that the strength decreases and the ductility improves with increasing annealing temperatures, and a notable enhancement of ductility was achieved only when the volume fraction of recrystallized grains exceeded ~80%. The strength–ductility synergy improves significantly with decreasing SFE

Item Type: Article
ISSNs: 1359-6462 (print)
Keywords: Cu and Cu–Al alloy, high-pressure torsion (HPT), nanostructure, strength–ductility synergy, stacking fault energy (SFE)
Subjects: T Technology > TN Mining engineering. Metallurgy
Divisions: Faculty of Engineering and the Environment > Engineering Sciences > Engineering Materials Surface Engineering
ePrint ID: 300700
Date Deposited: 29 Feb 2012 09:52
Last Modified: 27 Mar 2014 20:19
URI: http://eprints.soton.ac.uk/id/eprint/300700

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