MODELING OF THE GLOBULITIC SOLIDIFICATION OF A BINARY METAL ALLOY

被引：5

作者：

FELLER, RJ

BECKERMANN, C

机构：

[1] Department of Mechanical Engineering The University of Iowa, Iowa City

来源：

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 1993年 / 20卷 / 03期

关键词：

D O I：

10.1016/0735-1933(93)90017-P

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A model is presented for the globulitic solidification of a binary metal alloy based on the volume averaging and two-phase approaches. The microscopic processes of nucleation and impingement are included in the model, as well as the modeling of species diffusion in the solid and liquid phases while accounting for the movement of the interface. Limiting case results are derived for the Scheil and Lever Rule models, respectively. Simulations are conducted for the Al-4 wt.% Cu system in which the effects of liquid undercooling, cooling rate, impingement, thermophysical properties and spatial effects are studied.

引用

页码：311 / 322

页数：12

共 12 条

[1]

MATHEMATICAL-MODELING OF MICROSEGREGATION IN BINARY METALLIC ALLOYS [J].

BATTLE, TP ;

PEHLKE, RD .

METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, 1990, 21 (02) :357-375

[2]

BECKERMANN C, 1993, IN PRESS J MATERIALS

[3]

FELLER RJ, 1991, THESIS U IOWA IOWA C

[4]

Kurz W., 1989, FUNDAMENTALS SOLIDIF

[5]

Mondolfo L.F., 1976, ALUMINIUM ALLOYS STR

[6]

Murray J. L., 1985, International Metals Reviews, V30, P211

[7]

A VOLUME-AVERAGED 2-PHASE MODEL FOR TRANSPORT PHENOMENA DURING SOLIDIFICATION [J].

NI, J ;

BECKERMANN, C .

METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY, 1991, 22 (03) :349-361

[8]

Rappaz M., 1988, Solidification Processing of Eutectic Alloys, P133

[9]

PROBABILISTIC MODELING OF MICROSTRUCTURE FORMATION IN SOLIDIFICATION PROCESSES [J].

RAPPAZ, M ;

GANDIN, CA .

ACTA METALLURGICA ET MATERIALIA, 1993, 41 (02) :345-360

[10]

RAPPAZ M, 1991, MATERIALS PROCESSING IN THE COMPUTER AGE, P321

← 1 2 →