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金属学报  1996, Vol. 32 Issue (2): 120-126    
  论文 本期目录 | 过刊浏览 |
棒状共晶的凝固模型
潘冶;孙国雄
东南大学
SOLIDIFICATION MODEL OF ROD EUTECTIC
PAN Ye; SUN Guoxiong(Southeast University; Nanjing 210018)(Manuscript received 1995-04-24)
引用本文:

潘冶;孙国雄. 棒状共晶的凝固模型[J]. 金属学报, 1996, 32(2): 120-126.
, . SOLIDIFICATION MODEL OF ROD EUTECTIC[J]. Acta Metall Sin, 1996, 32(2): 120-126.

全文: PDF(436 KB)  
摘要: 基于定向凝固胞晶与Saffman-Taylor指的相似性,给出了棒状共晶凝固模型,得到表述的相间距选择规律,并用MnSb/Sb共晶生长实验证实了模型的有效性。发现nf/nfMnSb/Sb和f/nfMnBi/Bi,Si/Al棒状共晶有非常接近的耦合参数σ_eff,结构特征上表现为相间距选择的相似性。
关键词 棒状共晶耦合模型MnSb/Sb生长相间距选择    
Abstract:Based on correspondence between solidification cell and Saffman-Taylor finger, a solidification model of rod eutectic is proposed and used to indicate that the law of phase spacing selection can be expressed by. The effectiveness of the model is experimentally verified by MnSb/Sb eutectic growth. It is found that nf/nf MnSb/Sb and f/nf Si/Al, MnBi/Bi rod eutectics have a nearly same coupling parameter σeff and the similarity of phase spacing selection in microstructure.(Correspondent. PAN Ye, associate professor, Department of Mechanical Engineering, Southeast University,Nanjing 210018)
Key words rod eutectic    coupling model    MnSb/Sb growth    phase spacing selection
收稿日期: 1996-02-18     
基金资助:高等学校博士学科点专项科研基金
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