| 固溶处理对Al-Cu合金中Portevin-Le Chatelier效应空域行为的影响 |
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| 引用本文： | 江慧丰,张青川,徐毅豪,伍小平.固溶处理对Al-Cu合金中Portevin-Le Chatelier效应空域行为的影响[J].物理学报,2006,55(1):409-412. |
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| 作者姓名： | 江慧丰 张青川 徐毅豪 伍小平 |
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| 作者单位： | 中国科学技术大学，中科院材料力学行为和设计重点实验室，合肥 230027 |
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| 基金项目： | 国家高技术研究发展计划(863计划);国家自然科学基金 |
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| 摘 要： | 研究了在定加载速率拉伸条件下，固溶处理对Al-Cu合金材料中PLC(Portevin-Le Chatelier)效应空域行为的影响.在较低拉伸速率时，变形初期PLC变形带在试件宽度方向中央附近某点处“成核”.随着变形的继续，出现多带共存的现象.且带宽较小，带与拉伸轴向的夹角较大.在较大拉伸速率条件下，PLC变形带先连续传播，再随机出现.
关键词：
PLC效应
动态应变时效
固溶处理
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| 关 键 词： | PLC效应 动态应变时效 固溶处理 |
| 文章编号： | 1000-3290/2006/55(01)/0409-04 |
| 收稿时间： | 5/5/2005 12:00:00 AM |
| 修稿时间： | 2005-05-052005-05-30 |
The effect of solution treatment on the spatial behavior of the Portevin-Le Chatelier effect in Al-Cu alloys |
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| Jiang Hui-Feng,Zhang Qing-Chuan,Xu Yi-Hao,Wu Xiao-Ping.The effect of solution treatment on the spatial behavior of the Portevin-Le Chatelier effect in Al-Cu alloys[J].Acta Physica Sinica,2006,55(1):409-412. |
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| Authors: | Jiang Hui-Feng Zhang Qing-Chuan Xu Yi-Hao Wu Xiao-Ping |
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| Institution: | CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei 230027, China |
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| Abstract: | The effect of solution treatment on the spatial behavior of the Portevin-Le Chatelier effect in Al-Cu alloys is investigated under constant applied driving velocity. During the initial stage of plastic deformation, the PLC deformation band nucleates in the neighborhood of the middle of the transverse direction of specimen. And multiple bands will exist simultaneously in the specimen when deformation develops, whose width is narrower and incline at a larger angle than those in annealing treated material. At high applied velocity, the PLC deformation band propagates continuously first, and then nucleates randomly in the specimen. |
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| Keywords: | Portevin-Le Chatelier effect dynamic strain aging solution treatment |
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