Grain boundary saturation and grain growth

被引:124
作者
Liu, F [1 ]
Kirchheim, R [1 ]
机构
[1] Univ Gottingen, Inst Mat Phys, D-37077 Gottingen, Germany
关键词
grain boundary energy; grain boundary segregation; grain growth;
D O I
10.1016/j.scriptamat.2004.05.042
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
In nanoscale alloys with strong segregation tendency, the grain size at metastable thermodynamic equilibrium is determined by the grain boundary energy, the enthalpy change of grain boundary segregation, and the solute excess of an equivalent grain boundary monolayer at saturation. Good agreement between experiment and thermodynamic description has been found with respect to the temperature-dependence of the metastable grain size. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:521 / 525
页数:5
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