PREDICTION OF EQUIAXED GRAIN DENSITY IN MULTICOMPONENT ALLOYS, STIRRED ELECTROMAGNETICALLY

被引：74

作者：

DESNAIN, P

FAUTRELLE, Y

MEYER, JL

RIQUET, JP

DURAND, F

机构：

[1] GRENOBLE POLYTECH INST, F-38402 ST MARTIN DHERES, FRANCE

[2] PECHINEY, CRV SA, F-38340 VOREPPE, FRANCE

来源：

ACTA METALLURGICA ET MATERIALIA | 1990年 / 38卷 / 08期

关键词：

24;

D O I：

10.1016/0956-7151(90)90119-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A phenomenological model, which numerically simulates nucleation and growth of equiaxed grains in a stirred, is presented. Process parameters are stirring intensity and alloy composition. The main results are the volume grain density and the maximum undercooling, together with intermediate parameters such as undercooling at the beginning of nucleation, nucleation rate, grain growth rate .... The model is used to discuss the effect of compositional changes. In particular it explains the influence of low level additions (for instance titanium), independently of the effect of nucleating agents. © 1990.

引用

页码：1513 / 1523

页数：11

共 23 条

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