| 电子背散射衍射分析中的伪对称性误标及其克服 |
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| 引用本文： | 孟利,杨平,李志超,崔凤娥. 电子背散射衍射分析中的伪对称性误标及其克服[J]. 中国体视学与图像分析, 2007, 12(4): 282-285 |
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| 作者姓名： | 孟利 杨平 李志超 崔凤娥 |
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| 作者单位： | 北京科技大学材料科学与工程学院,北京,100083 |
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| 摘 要： | 本文基于在实验过程中遇到的误标数据，考察EBSD测量过程中发生误标的原因。涉及的材料包括密排六方结构（镁合金）、体心立方结构（电工钢）金属。统计结果表明，密排六方结构中的误标点（块）主要以30°（0001）和30°（1 1 2 12）的取向关系出现；体心立方结构中的误标点（块）多是30°〈111〉的取向关系，而且误标点具有重合位置点阵（CSL）关系。误标具有明显的晶粒取向选择性。最后提出一些的减少误标的办法。
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| 关 键 词： | 电子背散射衍射(EBSD) 伪对称性 误标 取向 |
| 文章编号： | 1007-1482(2007)04-0282-04 |
| 修稿时间： | 2007-08-23 |
Mis-indexing of pseudosymmetry in EBSD analyses and its elimination |
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| MENG Li,YANG Ping,LI Zhichao,CUI Fenge. Mis-indexing of pseudosymmetry in EBSD analyses and its elimination[J]. Chinese Journal of Stereology and Image Analysis, 2007, 12(4): 282-285 |
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| Authors: | MENG Li YANG Ping LI Zhichao CUI Fenge |
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| Affiliation: | MENG Li, YANG Ping, LI Zhichao, CUI Fenge (Department of Materials, University of Science and Technology Beijing, Beijing 100083, China) |
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| Abstract: | The reason of mis-indexing during EBSD measurement was examined based on the mis-indexing data encountered in the experiments. The materials involve HCP metal of magnesium alloys and BCC metal of electric steel. Statistical results reveal that orientation relationships of 30°〈0001〉 and 30°〈1 1 2 12〉 appears mostly in HCP magnesium alloys. Otherwise, 30°〈111〉 is the most relationship in the BCC metal; furthermore the mis-indexing spots have CSL boundaries relative to matrix. Mis-indexing exhibits obviously orientation dependence. At the end of this article, several means of reduction mis-indexing are mentioned. |
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| Keywords: | EBSD pseudosymmetry mis-indexing orientation |
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