Microstructure evolution and solidification kinetics of undercooled Co-Ge eutectic alloys

被引：35

作者：

Liu, XR ^{[1
]}

Cao, CD ^{[1
]}

Wei, B ^{[1
]}

机构：

[1] Northwestern Polytech Univ, Dept Appl Phys, Xian 710072, Peoples R China

来源：

SCRIPTA MATERIALIA | 2002年 / 46卷 / 01期

基金：

中国国家自然科学基金;

关键词：

rapid solidification; eutectic growth; dendrite growth; containerless processing;

D O I：

10.1016/S1359-6462(01)01188-5

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The Co-29.7% Ge eutectic and Co-33% Ge hypereutectic alloys processed in drop tube attain large undercoolings and show "lamellar eutectic to anomalous eutectic" and "dendritic to equiaxed" morphology transitions respectively. The eutectic coupled zone is calculated on the basis of current eutectic and dendritic growth theories, which takes the shape of peanut and leans toward Co-rich side. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：13 / 18

页数：6

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