Theoretical Studies of Diffusion Kinetics in Austenite

Alexander V. Evteev; Elena V. Levchenko; Irina V. Belova; Graeme E. Murch

doi:10.4028/www.scientific.net/DDF.273-276.455

Paper Titles

Cross Interdiffusion Coefficients in Nickel- and Iron-Based Ternary Alloys
p.419

Exploration of the Transition from Harrison Type-A Kinetics to Type-B Kinetics Regimes in Grain Boundary Diffusion
p.425

Visualization of the Vacancy-Wind Effect Occurring in Chemical Diffusion and Ionic Conductivity in Solids
p.431

Diffusion Kinetics Analysis of Cation Diffusion in YSZ and LSGM
p.445

Theoretical Studies of Diffusion Kinetics in Austenite
p.455

Finite Element Modelling of Oxygen Diffusion and Segregation at Interfaces in Ag-MgO Composites: Parametric Studies
p.461

Interfacial Reactions during the Dissolution of Titanium in Liquid Iron
p.467

Parametric Analyses of the TROI Experimental Results by Using the TEXAS-V Code
p.474

Defect-Induced Photoluminescence of Powdered Silica Glass
p.479

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Theoretical Studies of Diffusion Kinetics in Austenite

Abstract:

We report on the computer simulation (using molecular dynamics and lattice relaxation) to explore tracer and chemical diffusion (carbon) kinetics in austenite at low carbon contents. It was found by molecular dynamics simulations that the detailed balance relations are not valid for the second nearest neighbours in the movements of the carbon interstitial atoms. The effect of a possible split energy level at the second nearest neighbour positions is analysed from a theoretical point of view.