Magnetically driven migration of specific planar grain boundaries in Zn bicrystals

被引：16
作者：
Guenster, Christoph [1 ]
Molodov, Dmitri A. [1 ]
Gottstein, Guenter [1 ]
机构：
[1] Rhein Westfal TH Aachen, Inst Phys Met & Met Phys, D-52056 Aachen, Germany
来源：
SCRIPTA MATERIALIA | 2010年 / 63卷 / 03期
关键词：
Grain boundary migration; Magnetic driving force; Bicrystal; MOTION; FIELD; BISMUTH;
D O I：
10.1016/j.scriptamat.2010.04.023
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Magnetically driven migration of planar < 10 (1) over bar0 > tilt grain boundaries with various misorientations in high purity zinc bicrystals was measured in situ by means of a specially designed polarization microscopy probe. The absolute grain boundary mobility and its temperature dependence were measured in the regime between 330 and 415 degrees C. The results revealed that there is a pronounced misorientation dependence of grain boundary mobility in the investigated angular range. The migration activation enthalpy was found to vary between 1.18 and 2.15 eV. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：300 / 303
页数：4
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