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Simultaneously Increasing the Ductility and Strength of Nanostructured Alloys
Author(s) -
Zhao Y. H.,
Liao X. Z.,
Cheng S.,
Ma E.,
Zhu Y. T.
Publication year - 2006
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200600310
Subject(s) - ductility (earth science) , materials science , alloy , yield (engineering) , metallurgy , composite material , nanotechnology , creep
Simultaneous increase of the ductility and strength of a bulk nanostructured Al alloy with an average grain size of ∼ 100 nm (curve NS) has been achieved by precipitating Guinier–Preston (G–P) zones, η′, and η particles (curve NS+P). Bulk nanostructured materials usually have high strength, but disappointingly low ductility. All previous attempts to enhance the ductility of nanostructured materials have sacrificed their yield strengths. This strategy is applicable to many nanostructured alloys and composites.