| 三叉晶界迁移的晶体相场研究 |
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| 引用本文： | 罗志荣,卢成健,黄礼琳,高英俊.三叉晶界迁移的晶体相场研究[J].广西科学,2017,24(6):529-533. |
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| 作者姓名： | 罗志荣 卢成健 黄礼琳 高英俊 |
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| 作者单位： | 玉林师范学院, 广西高校复杂系统优化与大数据处理重点实验室, 广西玉林 537000,玉林师范学院, 广西高校复杂系统优化与大数据处理重点实验室, 广西玉林 537000,玉林师范学院, 广西高校复杂系统优化与大数据处理重点实验室, 广西玉林 537000,广西大学物理科学与工程技术学院, 广西南宁 530004 |
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| 基金项目： | 国家自然科学基金项目(51561031),广西自然科学基金项目(2015GXNSFBA139240),广西高校科研项目(KY2015YB243)和广西高校复杂系统优化与大数据处理重点实验室开放基金项目(2016CSOBDP0101)资助。 |
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| 摘 要： | 【目的】研究三叉晶界对晶界迁移的影响。【方法】采用晶体相场(Phase Field Crystal,PFC)方法模拟包含一个环形晶粒的三晶系统中三叉晶界的迁移过程。【结果】环形晶粒在演化过程中不断收缩,三叉晶界迁移具有自相似性;三叉晶界迁移速率与晶界曲率成正比。【结论】三叉晶界对晶界迁移有拖曳作用,且晶界曲率越小,拖拽作用越明显。
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| 关 键 词： | 三叉晶 晶界迁移 晶体相场方法 |
| 收稿时间： | 2017/7/19 0:00:00 |
Phase Field Crystal Study of Triple Junction Migration |
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| LUO Zhirong,LU Chengjian,HUANG Lilin and GAO Yingjun.Phase Field Crystal Study of Triple Junction Migration[J].Guangxi Sciences,2017,24(6):529-533. |
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| Authors: | LUO Zhirong LU Chengjian HUANG Lilin and GAO Yingjun |
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| Institution: | Guangxi Colleges and Universities Key Lab of Complex System Optimization and Big Data Processing, Yulin Normal University, Yulin, Guangxi, 537000, China,Guangxi Colleges and Universities Key Lab of Complex System Optimization and Big Data Processing, Yulin Normal University, Yulin, Guangxi, 537000, China,Guangxi Colleges and Universities Key Lab of Complex System Optimization and Big Data Processing, Yulin Normal University, Yulin, Guangxi, 537000, China and College of Physics Science and Engineering, Guangxi University, Nanning, Guangxi, 530004, China |
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| Abstract: | Objective] The effects of triple junction on grain boundary migration was studied.Methods] The phase field crystal (PFC) method was used to simulate the migration process of triple junction in a tricrystal system containing a loop grain crystal.Results] The results showed that the loop grain was constantly shrinking during evolution, and the triple junction had a self-similar property. The migration rate of triple junction was proportional to the grain boundary curvature.Conclusion] The triple junction had a drag effect on the grain boundary, and the smaller the grain boundary curvature, the more remarkable the drag effect. |
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| Keywords: | triple junction grain boundary migration phase field crystal method |
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