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Numerical study of growth competition between twin grains during directional solidification by using multi-phase field method | |
Zhu, Chang-Sheng1,2; Wang, Ting1; Feng, Li2; Lei, Peng1; Ma, Fang-Lan1 | |
2022 | |
发表期刊 | CHINESE PHYSICS B |
ISSN | 1674-1056 |
卷号 | 31期号:2 |
摘要 | A multi-phase field model is established to simulate the growth competition and evolution behavior between seaweed and columnar dendrites during directional solidification. According to the effects of surface tension and interfacial energy, we quantitatively analyze the influences of factors such as inclination angles, pulling velocity, and anisotropic strength on twin growth. The results demonstrate that the pulling velocity and anisotropic strength have an important influence on the morphology and evolution of the seaweed and dendritic growth. The low pulling velocity and anisotropic strength are both key parameters for maintaining the stable morphology of seaweed during competitive growth in a bicrystal, showing that the lateral branching behavior is the root of the dendrites that can ultimately dominate the growth. And it is clarified that the lateral branching behavior and lateral blocking are the root causes of the final dominant growth of dendrites. With the increase of anisotropy strength, the seaweed is eliminated fastest in case 1, the seaweed is transformed into degenerate dendritic morphology, and eliminates the seaweed by promoting the generation and lateral growth of the lateral branches of the dendrites. The increase of pulling velocity is to increase the undercooling of favorable oriented grain and accelerate the growth rate of dendrites, thus producing more new primary dendrites for lateral expansion and accelerating the elimination rate of unfavorable oriented grain. |
关键词 | multi-phase field simulation grain growth competition directional solidification twin grains |
DOI | 10.1088/1674-1056/ac0eed |
收录类别 | SCIE ; EI |
语种 | 英语 |
WOS研究方向 | Physics |
WOS类目 | Physics, Multidisciplinary |
WOS记录号 | WOS:000746972800001 |
出版者 | IOP Publishing Ltd |
EI入藏号 | 20221011754380 |
EI主题词 | Solidification |
EI分类号 | 471.1 Oceanography, General ; 802.3 Chemical Operations ; 921.6 Numerical Methods ; 931.2 Physical Properties of Gases, Liquids and Solids ; 933.1.2 Crystal Growth ; 951 Materials Science |
来源库 | WOS |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/154891 |
专题 | 计算机与通信学院 材料科学与工程学院 |
通讯作者 | Wang, Ting |
作者单位 | 1.Lanzhou Univ Technol, Sch Comp & Commun, Lanzhou 730050, Peoples R China; 2.Lanzhou Univ Technol, State Key Lab Gansu Adv Proc & Recycling Nonferro, Lanzhou 730050, Peoples R China |
第一作者单位 | 兰州理工大学 |
通讯作者单位 | 兰州理工大学 |
第一作者的第一单位 | 兰州理工大学 |
推荐引用方式 GB/T 7714 | Zhu, Chang-Sheng,Wang, Ting,Feng, Li,et al. Numerical study of growth competition between twin grains during directional solidification by using multi-phase field method[J]. CHINESE PHYSICS B,2022,31(2). |
APA | Zhu, Chang-Sheng,Wang, Ting,Feng, Li,Lei, Peng,&Ma, Fang-Lan.(2022).Numerical study of growth competition between twin grains during directional solidification by using multi-phase field method.CHINESE PHYSICS B,31(2). |
MLA | Zhu, Chang-Sheng,et al."Numerical study of growth competition between twin grains during directional solidification by using multi-phase field method".CHINESE PHYSICS B 31.2(2022). |
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