| 冷轧锆合金晶粒内取向差轴分布规律的EBSD研究 |
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| 引用本文： | 余泓冰,栾佰峰,陈建伟,刘庆. 冷轧锆合金晶粒内取向差轴分布规律的EBSD研究[J]. 电子显微学报, 2011, 30(4): 365-368 |
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| 作者姓名： | 余泓冰 栾佰峰 陈建伟 刘庆 |
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| 作者单位： | 重庆大学材料科学与工程学院,重庆,400044 |
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| 基金项目： | 中央高校基本科研业务费专项资金资助（No.CDJZR10130008,CDJXS10132201） |
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| 摘 要： | 锆合金具有密排六方结构,晶体对称性低,优先滑移系数目较少,变形机制较为复杂.本文利用电子背散射衍射(EBSD)技术研究了变形锆合金晶粒内部取向差轴(in-grain misorientation axes,简称IGMA)的分布规律.研究结果表明,c轴平行于TD或向TD倾斜的晶粒,IGMA集中分布在〈0001〉轴附近,其...
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| 关 键 词： | EBSD 变形机制 泰勒轴 织构 |
EBSD analysis of the distribution of in-grain misorientation axes in cold-rolled Zr alloy |
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| YU Hong-bing,LUAN Bai-feng,CHEN Jian-wei,LIU Qing. EBSD analysis of the distribution of in-grain misorientation axes in cold-rolled Zr alloy[J]. Journal of Chinese Electron Microscopy Society, 2011, 30(4): 365-368 |
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| Authors: | YU Hong-bing LUAN Bai-feng CHEN Jian-wei LIU Qing |
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| Affiliation: | (College of Material Science and Engineering,Chongqing University,Chongqing 400030,China) |
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| Abstract: | The deformation mechanism of Zr alloy became very complex due to its hexagonal close packed structure,low symmetry and limited primary slip systems.The distribution characteristics of in-grain misorientation（IGMA） in cold rolled Zr-Sn-Nb alloy were investigated by means of the electron backscatter diffraction（EBSD）.The results show that when the grains with c axes are paralleled or tilted to TD,the IGMA distribution is concentrated around the 〈0001〉 axis,indicating that the grain is mainly deformed by prism slip.When the grains with c axes are paralleled or tilted to ND,the IGMA density near the 〈0001〉 axis is weak,indicating that the pyramidal slip plays an important role during the plastic deformation.Beside the grains＇ orientation,the deformation mechanism of the grains may be affected by the constriction condition. |
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| Keywords: | EBSD deformation mechanism Taylor axes texture |
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