Comments on a comparison of early and recent work on the effect of trace additions of Cd, In, or Sn on nucleation and growth of θ′ in Al-Cu alloys

被引：94
作者：
Silcock, JM [1 ]
Flower, HM [1 ]
机构：
[1] Univ London Imperial Coll Sci Technol & Med, Dept Mat, London SW7 2BP, England
来源：
SCRIPTA MATERIALIA | 2002年 / 46卷 / 05期
关键词：
aluminium alloys; precipitation; trace elements;
D O I：
10.1016/S1359-6462(02)00003-9
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The role of trace elements X (Cd, In or Sn) in theta' formation in Al-Cu alloys is considered. Two processes may occur: (i) heterogeneous nucleation on small particles of X (mainly at 200 degreesC and above) and (ii) incorporation of atoms of X into the theta' nuclei reducing the misfit with the aluminium matrix (principally at lower temperatures). (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
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页码：389 / 394
页数：6
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