Atom probe tomography and transmission electron microscopy characterisation of precipitation in an Al-Cu-Li-Mg-Ag alloy

被引：93
作者：
Gault, B. [1 ,2 ]
de Geuser, F. [3 ]
Bourgeois, L. [4 ,5 ]
Gabble, B. M. [6 ]
Ringer, S. P. [2 ]
Muddle, B. C. [5 ]
机构：
[1] Univ Oxford, Dept Mat, Oxford OX1 3PH, England
[2] Univ Sydney, Australian Ctr Microscopy & Microanal, Sydney, NSW 2006, Australia
[3] Grenoble INP UJF CNRS, SIMaP, St Martin Dheres, France
[4] Monash Univ, Monash Ctr Elect Microscopy, Clayton, Vic 3800, Australia
[5] Monash Univ, Dept Mat Engn, Clayton, Vic 3800, Australia
[6] Aerosp Corp, El Segundo, CA 90245 USA
来源：
ULTRAMICROSCOPY | 2011年 / 111卷 / 06期
关键词：
Atom probe tomography; Aluminium alloys; Local magnification; LOCAL MAGNIFICATION; PHASE; RECONSTRUCTION; AL-CU-MG-(AG);
D O I：
10.1016/j.ultramic.2010.12.004
中图分类号：
TH742 [显微镜];
学科分类号：
摘要：
State-of-the art atom probe tomography (APT) combined with transmission electron microscopy (TEM) were used to investigate the microstructure at different stages of the ageing process of an alloy of composition (at%) Al-1.68%Cu-4.62%Li-0.33%Mg-0.1%Ag. These alloys were shown to exhibit a complex microstructure of T-1 plates and several metastable phases, including theta' and S. We will highlight the early stages of clustering, precipitate interactions and possible solute segregation at the matrix/precipitate interfaces and detail the chemical composition of the different phases. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：683 / 689
页数：7
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