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Title

Optimisation of strength and ductility of Cu–Cr–Zr by combining severe plastic

AuthorsValdés León, Kesman; Muñoz-Morris, Mª Antonia; Morris, David G.
KeywordsEqual channel angular pressing
Non-ferrous alloys
Microstructure
Strengthening
Issue Date2012
PublisherElsevier
CitationMaterials Science and Engineering A 536 : 181 -189 (2012)
AbstractThe microstructure and mechanical behaviour of a Cu–Cr–Zr alloy has been examined after severe plastic deformation, and giving both prior and subsequent age hardening treatments. Dislocation subgrain structures are produced by deformation leading to high strength and reduced ductility. Mild annealing following deformation leads to slight substructural coarsening, some loss of dislocations, and simultaneous precipitation, resulting in an increase of strength with some improvement of ductility. The same heat treatments for precipitation before deformation lead to finer substructures, with shear reducing particle size and leading to partial dissolution. Strength and ductility are analysed in terms of the deformation substructures and the role of precipitate particles
Publisher version (URL)http://dx.doi.org/10.1016/j.msea.2011.12.098
URIhttp://hdl.handle.net/10261/49378
DOI10.1016/j.msea.2011.12.098
ISSN921-5093
Appears in Collections:(CENIM) Artículos
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