3-DIMENSIONAL CELLULAR-AUTOMATON MODELS OF MICROSTRUCTURAL EVOLUTION DURING SOLIDIFICATION

被引：19

作者：

BROWN, SGR

BRUCE, NB

机构：

[1] Materials Engineering, University College Swansea, Singleton Park, Swansea

来源：

JOURNAL OF MATERIALS SCIENCE | 1995年 / 30卷 / 05期

关键词：

D O I：

10.1007/BF00356112

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The evolution of microstructural features during solidification involves complex interactions between several physical phenomena. Cellular automata (CA) models are often characterized as being simple in their construction and yet able to produce very complicated behaviour. This property of CA models has been exploited to produce computer simulations of various aspects of microstructural evolution occurring during solidification. Results of a series of three-dimensional simulations of non-isothermal ''free'' dendritic growth are presented and the changes in dendrite morphology for different conditions are quantified and discussed. A modification of this model was also developed to examine the effects of composition on microstructural evolution for a simple eutectic system. As the composition moves towards the eutectic the simulated microstructures change from combined dendritic/lamellar to completely lamellar.

引用

页码：1144 / 1150

页数：7

共 37 条

[1]

BOETTINGER WJ, 1993, MODELING CASTING WEL, V6, P79

[2] GROWTH FROM MELT .3. DENDRITIC GROWTH [J].

BOLLING, GF ;

TILLER, WA .

JOURNAL OF APPLIED PHYSICS, 1961, 32 (12) :2587-+

[3] RULE-BASED LATTICE COMPUTER-MODELS FOR SIMULATING DENDRITIC GROWTH [J].

BROWN, SGR ;

SPITTLE, JA .

SCRIPTA METALLURGICA ET MATERIALIA, 1992, 27 (11) :1599-1603

[4] A CELLULAR-AUTOMATON MODEL OF THE STEADY-STATE FREE GROWTH OF A NONISOTHERMAL DENDRITE [J].

BROWN, SGR ;

WILLIAMS, T ;

SPITTLE, JA .

ACTA METALLURGICA ET MATERIALIA, 1994, 42 (08) :2893-2898

[5]

BROWN SGR, 1994, IN PRESS MATER SCI T

[6]

BURDEN MH, 1974, J CRYST GROWTH, V22, P109, DOI 10.1016/0022-0248(74)90127-4

[7]

CHALMERS B, 1964, PRINCIPLES SOLIDIFIC, pCH4

[8]

CHILTON JP, 1961, J I MET, V89, P162

[9]

Glicksman M. E., 1967, J CRYST GROWTH, V1, P297, DOI 10.1016/0022-0248(67)90037-1

[10] DENDRITIC GROWTH - TEST OF THEORY [J].

GLICKSMAN, ME ;

SCHAEFER, RJ ;

AYERS, JD .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1976, 7 (11) :1747-1759

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