| 铜双晶水平与垂直晶界压缩形貌观察与分析 |
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| 引用本文： | 段先云,阮锋,张赛军.铜双晶水平与垂直晶界压缩形貌观察与分析[J].湖南大学学报(自然科学版),2013,40(7):59-63. |
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| 作者姓名： | 段先云 阮锋 张赛军 |
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| 作者单位： | 华南理工大学机械与汽车工程学院,广东广州,510640 |
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| 基金项目： | 国家自然科学基金青年基金项目，2012年广东省精密装备与制造技术重点实验室开放课题 |
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| 摘 要： | 对含水平和垂直晶界的铜双晶进行了等应压缩,并对变形后的显微形貌进行了观察.结果表明:在等应变压缩条件下,相比于水平晶界双晶体,垂直晶界双晶体中晶界附近的应力更高,孔洞和裂纹数量多于水平晶界的,孔洞和裂纹分布位置更集中于滑移线上或临近滑移线某一侧.
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| 关 键 词： | 晶界 晶体塑性 铜双晶 孔洞 裂纹 |
Morphologic Observation and Analysis of Compressed Copper Bicrystals with Horizontal and Vertical Grain Boundaries |
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| DUAN Xian-yun,RUAN Feng,ZHANG Sai-jun.Morphologic Observation and Analysis of Compressed Copper Bicrystals with Horizontal and Vertical Grain Boundaries[J].Journal of Hunan University(Naturnal Science),2013,40(7):59-63. |
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| Authors: | DUAN Xian-yun RUAN Feng ZHANG Sai-jun |
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| Abstract: | The microscopic morphologies of uniaxially compressed copper bicrystals (CB) with horizontal and vertical grain boundaries (GB) were observed. Experiment results have shown that, under the same comppressive loading condition and comparing the case of CB sample with horizontal GB, a higher stress exists beside the GB for the CB sample with vertical GB, for which there are much more micro-voids and cracks, whose locations are much concentrated to or beside the slip lines. |
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| Keywords: | grain boundary crystal plasticity copper bicrystal hole crack |
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