Three dimensional atom probe investigation on the formation of Al3(Sc,Zr)-dispersoids in aluminium alloys

被引：207
|
作者：
Forbord, B
Lefebvre, W
Danoix, F [1 ]
Hallem, H
Marthinsen, K
机构：
[1] Univ Rouen, CNRS, UMR 6634, Grp Phys Mat, F-76801 St Etienne, France
[2] SINTEF Mat Technol, N-7465 Trondheim, Norway
[3] Norwegian Univ Sci & Technol, N-7491 Trondheim, Norway
来源：
SCRIPTA MATERIALIA | 2004年 / 51卷 / 04期
关键词：
aluminium alloys; rare earth; dispersoids; nucleation; 3DAP;
D O I：
10.1016/j.scriptamat.2004.03.033
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Three dimensional atom-probe (3DAP) has been applied in order to study the nucleation of small, spherical and coherent Al-3(Sc,Zr)-dispersoids. The results indicate that Al-3(Sc,Zr) in the beginning of the nucleation process mainly consist of Al and Sc, while Zr enters the dispersoids at a later stage, i.e. relatively Zr-rich shells seem to form around Sc-rich cores. (C) 2004 Published by Elsevier Ltd. on behalf of Acta Materialia Inc.
引用
收藏
页码：333 / 337
页数：5
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