| 引用本文： |
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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. [点击复制]
- LUO Zhirong,LU Chengjian,HUANG Lilin,GAO Yingjun.Phase Field Crystal Study of Triple Junction Migration[J].Guangxi Sciences,2017,24(6):529-533. [点击复制]
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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。 |
| 关键词: 三叉晶 晶界迁移 晶体相场方法 |
| DOI：10.13656/j.cnki.gxkx.20171219.001 |
| 投稿时间：2017-07-19 |
| 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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| Phase Field Crystal Study of Triple Junction Migration |
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LUO Zhirong1, LU Chengjian1, HUANG Lilin1, GAO Yingjun2
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| (1.Guangxi Colleges and Universities Key Lab of Complex System Optimization and Big Data Processing, Yulin Normal University, Yulin, Guangxi, 537000, China;2.College of Physics Science and Engineering, Guangxi University, Nanning, Guangxi, 530004, China) |
| 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. |
| Key words: triple junction grain boundary migration phase field crystal method |
