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Deformation behavior of nanostructured aluminum alloy processed by severe plastic deformation

journal contribution
posted on 2001-12-01, 00:00 authored by R Islamgaliev, N Yunusova, Ilchat Sabirov, A Sergueeva, R Valiev
Microstructure and deformation behavior of the commercial aluminum-based Al7.5%Zn–2.7%Mg–2.3%Cu–0.15%Zr alloy subjected to high pressure torsion (HPT) were studied in the present work. A small grain size less than 100 nm, high level of internal stresses and presence of second phase nanoparticles were revealed by transmission electron microscopy (TEM) and X-ray diffraction (XRD). The nanostructured alloy processed by HPT exhibits tensile strength of 800 MPa and ductility of 20% at optimal temperature-strain rate conditions. Unusual influence of a short pre-annealing on tensile strength and ductility of as-processed alloy is discussed.

History

Journal

Materials science and engineering A

Volume

319-321

Pagination

877 - 881

Publisher

Elsevier

Location

Amsterdam, The Netherlands

ISSN

0921-5093

eISSN

1873-4936

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2001, Elsevier Science B.V.

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