| 多晶与单晶铜塑性变形行为的相关性 |
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| 引用本文： | 黄晓旭,蔡大勇,刘庆,姚枚.多晶与单晶铜塑性变形行为的相关性[J].中国有色金属学报,2001,11(Z2):110-113. |
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| 作者姓名： | 黄晓旭 蔡大勇 刘庆 姚枚 |
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| 作者单位： | 1. 燕山大学,材料科学与工程学院,秦皇岛,066004
2. 清华大学,材料系,北京,100084 |
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| 基金项目： | 中丹合作研究项目及国家自然科学基金资助项目(59701011) |
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| 摘 要： | 利用TEM分析拉伸变形多晶铜中不同取向晶粒的位错组织, 研究了多晶与单晶形变行为的相关性. 结果发现, 多晶铜中诸晶粒的形变显微组织可分为3种不同类型, 而且组织类型与其相应晶粒的晶体学取向存在密切的相关性; 根据多晶中不同类型组织的体积含量, 结合相应取向单晶的应力应变曲线, 计算出了多晶的应力应变曲线, 其结果与实测曲线相似.
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| 关 键 词： | 位错组织 晶粒取向 应力应变曲线 |
| 文章编号： | 1004-0609(2001)S2-0110-04 |
| 修稿时间： | 2001年3月6日 |
Correlation of plastic deformation behavior between polycrystalline and single crystal copper |
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| HUANG Xiao xu ,CAI Da yong ,LIU Qing ,YAO Mei.Correlation of plastic deformation behavior between polycrystalline and single crystal copper[J].The Chinese Journal of Nonferrous Metals,2001,11(Z2):110-113. |
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| Authors: | HUANG Xiao xu CAI Da yong LIU Qing YAO Mei |
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| Affiliation: | HUANG Xiao xu 1,CAI Da yong 1,LIU Qing 2,YAO Mei 1 |
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| Abstract: | The dislocation microstructure was analyzed by TEM for grains of different orientations in polycrystalline copper during tensile deformation, and also the correlation of plastic deformation behavior between polycrystalline and single crystal copper was studied. The results show that three types of microstructure have been identified in polycrystalline copper after deformation. Meanwhile, an obvious correlation is found between microstructure and grain orientation. The stress strain curve of the polycrystal is calculated with fair accuracy from single crystal data, which are weighted according to the volume fraction of the three different types of microstructure, and a good match with the experimental curve has been obtained. |
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| Keywords: | dislocation microstructure grain orientation stress strain curve |
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