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Influence of Natural Ageing and Deformation on Precipitation in an Al– C u– L i Alloy
Author(s) -
Decreus Benjamin,
Deschamps Alexis,
de Geuser Frédéric,
Sigli Christophe
Publication year - 2013
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201300098
Subject(s) - materials science , alloy , ageing , precipitation , precipitation hardening , metallurgy , deformation (meteorology) , hardening (computing) , phase (matter) , composite material , chemistry , genetics , physics , organic chemistry , layer (electronics) , meteorology , biology
The influence of natural ageing and plastic deformation on precipitation in an Al–3 wt% Cu–1 wt% Li–(Mg,Ag) alloy is investigated by small‐angle X‐ray scattering. When predeformation is applied before artificial ageing, regardless of natural ageing, the T 1 phase precipitates rapidly, resulting in a strong hardening response. When no deformation is applied, the T 1 phase precipitates more sluggishly and the strengthening response is lowered.