How does long-range order affect creep of alloys?

被引:15
作者
Cahn, RW [1 ]
机构
[1] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England
来源
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2002年 / 324卷 / 1-2期
关键词
long-range order; creep of alloys; creep of intermetallics;
D O I
10.1016/S0921-5093(01)01273-4
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The 'strength' of ordering in an intermetallic is measured by the ordering energy; ways of measuring this quantity are reviewed. The influence of ordering energy on the creep resistance of an intermetallic is examined; the slowing down of self-diffusion when long-range order is established is one possible source of enhanced creep resistance, the effect of a high ordering energy in slowing down 'viscous' motion of dislocations in a slip plane is another. In this connection, the available published evidence is outlined. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:1 / 4
页数:4
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