强磁场下纯铜板再结晶晶体取向的形成过程和演变机理

项目名称： 强磁场下纯铜板再结晶晶体取向的形成过程和演变机理

项目编号： No.51201028

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 金属材料学科

项目作者： 贺彤

作者单位： 东北大学

项目金额： 25万元

中文摘要： 本项目拟采用实验研究与理论分析相结合的方法，借助于电子背散射（EBSD）测试分析手段，全面系统地观察和测试强磁场作用下纯铜板再结晶晶核的形成和长大过程，探讨和分析强磁场下纯铜板再结晶晶体取向的形成和演变规律，研究磁场强度和方向对纯铜板再结晶过程中晶体取向演化和晶界迁移行为的作用效果，从微观层次对强磁场作用下纯铜板的再结晶行为进行理论解析，阐明强磁场作用下纯铜板再结晶晶体取向的形成过程和演变机理，结合强磁场对抗磁性材料晶体取向的作用特点，揭示其物理本质，并构建相应的物理模型。 该研究取得的成果将从一个全新的角度解析强磁场作用下抗磁性材料再结晶晶体取向形成过程和演变机理，为强磁场下金属材料的再结晶织构研究增添新的内涵，丰富强磁场材料学理论，并且为利用强磁场热处理这一极端条件，调控材料织构从而改善其性能奠定理论基础，另外还能为强磁场环境中纯铜板的制备与服役提供有价值的参考。

中文关键词： 强磁场；织构；再结晶；纯铜；

英文摘要： In the present project, the recrystallized nuclei formation and its growth processing of pure copper under a high magnetic field were systematically observed and analysed by EBSD. The law of formation and evolution of recrystallized crystallography orientation induced by a high magnetic field was discussed and analysed. The effect of magnetic field intensities and directions on crystallography orientation evolution and grain boundary migration of pure copper during recrystallization were studied. The recrystallized behaviors of pure copper under a high magnetic field were theoretically analysis from micro-levels. The mechanisms of action of the magnetic field on the crystallography orientation formation and evolution during recrystallization were clarified. Combining the characteristics of the effect of high magnetic field on crystallograhy orientation of diamagnetic materials, the nature of the formation and evolution of recrystallized texture of pure copper under high magnetic field was announced and corresponding physical model was built. The achivement of this project will clarified the mechanism of action of the magnetic field on the crystallography orientation formation and evolution of diamagnetic materials during recrystallization at a bran-new point. A new connotation is added to the research of recryst

英文关键词： Magnetic field；Texture；Recrystallization；Pure copper；