A combinatorial approach for extracting thermo-kinetic parameters from diffusion profiles

被引：12

作者：

Kucza, Witold ^{[1
]}

机构：

[1] AGH Univ Sci & Technol, PL-30059 Krakow, Poland

来源：

SCRIPTA MATERIALIA | 2012年 / 66卷 / 3-4期

关键词：

Alloys; Diffusion; Diffusion-coefficients; Simulation; Thermodynamics; TERNARY INTERDIFFUSION COEFFICIENTS; FE;

D O I：

10.1016/j.scriptamat.2011.10.025

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A strategy for extracting thermodynamic and diffusion parameters from interdiffusion profiles is presented. The approach is based on the Darken model or its development by Manning. Diffusion profiles are calculated numerically using the Radau 5 integrator. Optimization of the parameters is performed by simultaneously fitting simulated profiles to many experimental ones, representing a whole system, using the Levenberg-Marquardt method. The approach is validated for Cu-Fe-Ni system at 1273 K. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：151 / 154

页数：4

共 24 条

[1] Interdiffusion under the chemical potential gradient; Comparison of Onsager and Darken models [J].

Bachorczyk, R ;

Danielewski, M ;

Filipek, R .

DIFFUSION, SEGREGATION AND STRESSES IN MATERIALS, 2003, 216-2 :141-147

[2]

Bachorczyk R., 2002, ARCH NAUKI MAT, V23, P217

[3] Theoretical analysis of experimental tracer and interdiffusion data in Cu-Ni-Fe alloys [J].

Belova, IV ;

Murch, GE ;

Filipek, R ;

Danielewski, M .

ACTA MATERIALIA, 2005, 53 (17) :4613-4622

[4] A new technique for evaluating diffusion mobility parameters [J].

Campbell, CE .

JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION, 2005, 26 (05) :435-440

[5] Modeling the interdiffusion and reactive-diffusion processes in multicomponent systems [J].

Danielewski, Marek ;

Wierzba, Bartlomiej .

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2008, 39 (04) :629-638

[6] Three-dimensional interdiffusion under stress field in Fe-Ni-Cu alloys [J].

Danielewski, Marek ;

Wierzba, Bartlomiej ;

Bachorczyk-Nagy, Renata ;

Pietrzyk, Maciej .

JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION, 2006, 27 (06) :691-698

[7]

DARKEN LS, 1948, T AM I MIN MET ENG, V175, P184

[8] Determination and assessment of ternary interdiffusion coefficients from individual diffusion couples [J].

Day, KM ;

Ram-Mohan, LR ;

Dayananda, MA .

JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION, 2005, 26 (06) :579-590

[9] Analysis of multicomponent diffusion couples for interdiffusion fluxes and interdiffusion coefficients [J].

Dayananda, MA .

JOURNAL OF PHASE EQUILIBRIA AND DIFFUSION, 2005, 26 (05) :441-446

[10] A new analysis for the determination of ternary interdiffusion coefficients from a single diffusion couple [J].

Dayananda, MA ;

Sohn, YH .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1999, 30 (03) :535-543

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