Drag effect of triple junctions on grain boundary and grain growth kinetics in aluminium

被引：54
|
作者：
Mattissen, D
Molodov, DA [1 ]
Shvindlerman, LS
Gottstein, G
机构：
[1] Rhein Westfal TH Aachen, Inst Met Kunde & Met Phys, D-52056 Aachen, Germany
[2] Russian Acad Sci, Inst Solid State Phys, Chernogolovka, Moscow District, Russia
来源：
ACTA MATERIALIA | 2005年 / 53卷 / 07期
关键词：
grain boundary; triple junction; mobility; von Neumann-Mullins relation; grain growth;
D O I：
10.1016/j.actamat.2005.01.016
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The motion and geometry of connected 2D grain boundary systems with triple junctions in aluminium was investigated in situ in an SEM with a specially designed heating stage. The results show that triple junctions can have a marked influence on grain boundary motion and grain growth. kinetics. The grain area change with annealing time was recorded in situ in the SEM. An analysis of the experimental data reveals that there is no unique relationship between growth rate and the number it of grain sides (von NeumannMullins relation). This is attributed to the effect of triple junction drag on grain growth. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：2049 / 2057
页数：9
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