INFLUENCE OF THERMAL BUOYANCY ON FIBROUS EUTECTIC GROWTH .1. SEGREGATION RESULTS IN THE SN-CU6SN5 SYSTEM

被引：13

作者：

DREVET, B

GARANDET, JP

CAMEL, D

FAVIER, JJ

机构：

[1] DTA / CEREM / DEM / SESC, Centre d'Etudes Nucléaires de Grenoble, 85 X

来源：

JOURNAL OF CRYSTAL GROWTH | 1993年 / 129卷 / 3-4期

关键词：

D O I：

10.1016/0022-0248(93)90490-N

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The influence of thermal convection on mass transport in tin copper hypo-eutectic alloys is studied in a Bridgman type configuration. It is seen that a significant segregation can occur during solidification. The axial composition profiles are fitted by means of a classical 1D boundary layer model. In terms of radial segregation, the 2D computer simulations performed for modelling account fairly well for the observed experimental results. An order of magnitude analysis is used to derive an asymptotic law for the maximal radial segregation in the solid, which is in good agreement with the numerical data.

引用

页码：549 / 558

页数：10

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