遠場來流作用下純熔體液固平直界面的穩定性分析

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遠場來流作用下純熔體液固平直界面的穩定性分析

陳明文, 王自東, 楊偉, 孫仁濟, 吳獻明

文章導航 > 工程科學學報 > 2006 > 28(8): 728-732

陳明文, 王自東, 楊偉, 孫仁濟, 吳獻明. 遠場來流作用下純熔體液固平直界面的穩定性分析[J]. 工程科學學報, 2006, 28(8): 728-732. doi: 10.13374/j.issn1001-053x.2006.08.005

引用本文:

陳明文, 王自東, 楊偉, 孫仁濟, 吳獻明. 遠場來流作用下純熔體液固平直界面的穩定性分析[J]. 工程科學學報, 2006, 28(8): 728-732. doi: 10.13374/j.issn1001-053x.2006.08.005

CHEN Mingwen, WANG Zidong, YANG Wei, SUN Renji, WU Xianming. Stability analysis of a planar liquid/solid interface of directional solidification in pure melt under perturbation of a far-field flow[J]. Chinese Journal of Engineering, 2006, 28(8): 728-732. doi: 10.13374/j.issn1001-053x.2006.08.005

Citation:

CHEN Mingwen, WANG Zidong, YANG Wei, SUN Renji, WU Xianming. Stability analysis of a planar liquid/solid interface of directional solidification in pure melt under perturbation of a far-field flow[J]. Chinese Journal of Engineering, 2006, 28(8): 728-732. doi: 10.13374/j.issn1001-053x.2006.08.005

陳明文, 王自東, 楊偉, 孫仁濟, 吳獻明. 遠場來流作用下純熔體液固平直界面的穩定性分析[J]. 工程科學學報, 2006, 28(8): 728-732. doi: 10.13374/j.issn1001-053x.2006.08.005

引用本文:

陳明文, 王自東, 楊偉, 孫仁濟, 吳獻明. 遠場來流作用下純熔體液固平直界面的穩定性分析[J]. 工程科學學報, 2006, 28(8): 728-732. doi: 10.13374/j.issn1001-053x.2006.08.005

CHEN Mingwen, WANG Zidong, YANG Wei, SUN Renji, WU Xianming. Stability analysis of a planar liquid/solid interface of directional solidification in pure melt under perturbation of a far-field flow[J]. Chinese Journal of Engineering, 2006, 28(8): 728-732. doi: 10.13374/j.issn1001-053x.2006.08.005

Citation:

CHEN Mingwen, WANG Zidong, YANG Wei, SUN Renji, WU Xianming. Stability analysis of a planar liquid/solid interface of directional solidification in pure melt under perturbation of a far-field flow[J]. Chinese Journal of Engineering, 2006, 28(8): 728-732. doi: 10.13374/j.issn1001-053x.2006.08.005

遠場來流作用下純熔體液固平直界面的穩定性分析

doi: 10.13374/j.issn1001-053x.2006.08.005

1. 北京科技大學應用科學學院, 北京 100083;
2. 北京科技大學材料科學與工程學院, 北京 100083;
3. 北海糧油工業(天津)有限公司, 天津 300454

基金項目:

國家重大基礎研究項目(No.G2000067206-1)

作者簡介:
陳明文(1960-),男,副教授

中圖分類號: TG111.4;O175.2
計量
- 文章訪問數: 204
- HTML全文瀏覽量: 64
- PDF下載量: 4
- 被引次數: 0
出版歷程
- 收稿日期: 2005-10-27
- 修回日期: 2006-03-03
- 網絡出版日期: 2021-08-24

Stability analysis of a planar liquid/solid interface of directional solidification in pure melt under perturbation of a far-field flow

1. Applied Science School, University of Science and Technology Beijing, Beijing 100083, China;
2. Materials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China;
3. Beihai Grain and Vegetable Oil (Tianjin) Co. Ltd., Tianjin 300454, China

摘要: 利用漸近分析方法研究在小的遠場來流擾動作用下純熔體內具有液固平直界面的凝固過程的穩定性,導出了液固界面的擾動振幅變化率與波數的色散關系,以此為基礎給出了具有液固平直界面的凝固過程的穩定性判據,揭示了金屬凝固過程中液固平直界面轉變為胞晶界面的內在機理.
- 熔體 /
- 晶體生長 /
- 液固界面 /
- 平直界面 /
- 漸近分析
Abstract: The stability of a planar liquid/solid interface of solidification in pure melt under perturbation of a small far-field flow was studied by using asymptotic analysis. A dispersion relation between the wave number and perturbation amplification rate was derived, and the morphological stability of planar liquid-solid interface of solidification was determined. The results reveal the mechanism of the transition from planar interface to cellular interface in directional solidification.
- melt /
- crystal growth /
- liquid/solid interface /
- planar interface /
- asymptotic analysis

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計量

文章訪問數: 204
HTML全文瀏覽量: 64
PDF下載量: 4
被引次數: 0

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