COMPUTER-SIMULATION OF DIFFUSION IN MULTIPHASE SYSTEMS

被引：195

作者：

ENGSTROM, A

HOGLUND, L

AGREN, J

机构：

[1] Department of Materials Science and Engineering, Division of Physical Metallurgy, Royal Institute of Technology, Stockholm

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 1994年 / 25卷 / 06期

关键词：

D O I：

10.1007/BF02652288

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A general model to treat multicomponent diffusion in multiphase dispersions is presented. The model is based on multicomponent diffusion data and basic thermodynamic data and contains no adjustable parameters. No restriction is placed on the number of components or phases that take part in the calculations, as long as the necessary thermodynamic and kinetic data are available. The new model is implemented into the DICTRA software, which makes use of THERMO-CALC to handle the thermodynamics. The model is applied to carburization of Ni alloys and heat treatment of welded joints between dissimilar materials. In both cases, the diffusion is accompanied by carbide formation or dissolution. A good agreement between experiments and calculations is found, despite the fact that no adjustable parameters are needed.

引用

页码：1127 / 1134

页数：8

共 21 条

[11] MODELING OF DIFFUSION-PROCESSES DURING CARBURIZATION OF ALLOYS [J].

FARKAS, D ;

OHLA, K .

OXIDATION OF METALS, 1983, 19 (3-4) :99-115

[12]

JOHNSSON B, 1992, TRITAMAC0504 ROYAL I

[13]

JONSSON B, 1992, UNPUB

[14]

LEE BJ, 1991, UNPUB

[15] GENERALIZED COMBINING RULES FOR PREDICTING TRANSPORT-PROPERTIES OF COMPOSITE-MATERIALS [J].

MCCULLOUGH, RL .

COMPOSITES SCIENCE AND TECHNOLOGY, 1985, 22 (01) :3-21

[16] APPLICATION OF COMMERCIAL COMPUTER CODES TO MODELING THE CARBURIZING KINETICS OF ALLOY-STEELS [J].

MORRAL, JE ;

DUPEN, BM ;

LAW, CC .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1992, 23 (07) :2069-2071

[17]

Pearson W.B., 1964, HDB LATTICE SPACING

[18]

QUADAKKERS WJ, 1987, 10TH INT C MET CORR, P1737

[19] THE TRANSITION FROM INTERNAL TO EXTERNAL OXIDATION AND THE FORMATION OF INTERRUPTION BANDS IN SILVER-INDIUM ALLOYS [J].

RAPP, RA .

ACTA METALLURGICA, 1961, 9 (08) :730-741

[20] THE THERMO-CALC DATABANK SYSTEM [J].

SUNDMAN, B ;

JANSSON, B ;

ANDERSSON, JO .

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 1985, 9 (02) :153-190

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