| 电场处理的强化晶界效应与唯象理论 |
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| 引用本文： | 陈铮,刘兵,等.电场处理的强化晶界效应与唯象理论[J].稀有金属材料与工程,2001,30(5):331-334. |
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| 作者姓名： | 陈铮 刘兵 |
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| 作者单位： | 西北工业大学 |
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| 基金项目： | 国家自然科学基金资助项目(59871039) |
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| 摘 要： | 以2090＋Ce铝锂合金为研究对象，重点探索了电场处理的强化晶界效应，研究了室温拉伸性能、显微组织对之的响应关系。结果表明，电场固溶处理可强化晶界，从而减弱沿晶断裂倾向，获得改善塑性的效应，但对强度影响甚微。唯象理论研究表明，电场有助于增强晶内溶质固溶能力，阻碍溶质、空位簇聚。
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| 关 键 词： | 唯象理论 铝锂合金 电场处理 强化晶界效应 |
| 文章编号： | 1002-185(2001)05-0331-04 |
| 修稿时间： | 2000年9月15日 |
Effect and Phenomenological Theory of Electric Field Treatment on Grain Boundary Strengthening |
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| Chen Zheng,Liu Bing,Wang Yongxin,Wei Qilong.Effect and Phenomenological Theory of Electric Field Treatment on Grain Boundary Strengthening[J].Rare Metal Materials and Engineering,2001,30(5):331-334. |
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| Authors: | Chen Zheng Liu Bing Wang Yongxin Wei Qilong |
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| Abstract: | In this paper, specific emphasis has been placed on exploring the effect of electric field treatment on grain boundary strengthening for Al Li alloy 2090+Ce. The relation of the tensile properties to the electric field was investigated. The results show that the grain boundary can be so strengthened as to weaken the intergranular failure. An improvement in ductility has been obtained, however, the change of strength was very little. The research results of phenomenological theory show that the solution ability of solute atoms was enhanced and the cluster gather of solute atoms and vacancy was improved by electricfield treatment. |
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| Keywords: | electric field grain boundary property phenomenological theory |
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