Evolution of grain boundary character distributions in Pb alloy during high temperature annealing

被引：0
|
作者：
Xia, Shuang [1 ]
Zhou, Bangxin [1 ]
Chen, Wenjue [1 ]
Wang, Weiguo [2 ]
机构：
[1] Institute of Materials, Shanghai University, Shanghai 200072, China
[2] School of Mechanical Engineering, Shandong University of Technology, Zibo 255049, China
来源：
Jinshu Xuebao/Acta Metallurgica Sinica | 2006年 / 42卷 / 02期
关键词：
Backscattering - Cold rolling - Crystal orientation - Electron diffraction - Grain boundaries - Optical microscopy - Recrystallization (metallurgy) - Thermomechanical treatment;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Grain boundary character distributions (GBCD) in Pb alloy after thermomechanical treatments were analyzed by electron back scatter diffraction (EBSD) and orientation imaging microscopy (OIM). The frequencies of low ∑ coincidence site lattice (CSL) grain boundaries in Pb-alloy can be enhanced to more than 70% after proper cold rolling combined with annealing at high temperature (0.9Tm) for a very short period of time. Together with ∑1 boundaries, the ∑3 boundaries appeared during recovering. The development of ∑3 boundaries in the primary stage of recrystallization is the main reason for enhancing the frequencies of low ∑ CSL grain boundaries. Triple junctions contained three CSL grain boundaries could be easily found in the OIM map of the specimen with high frequencies of low ∑ CSL grain boundaries, and there are specific orientation relationships among the grains assembled by the triple junctions.
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页码：129 / 133
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