Models of interdiffusion in a polycrystalline alloy: Kirkendall effect versus non-equilibrium vacancies and backstress

Andriy M. Gusak, N. V. Tyutyunnyk, King-Ning Tu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

In order to study evolution of the concentration profiles and markers velocities in various time and space scales quasi-one-dimensional model of interdiffusion in a polycrystalline alloy is proposed considering non-equilibrium vacancies and the Kirkendall effect. Sinks/sources of vacancies are assumed to be concentrated mainly at the moving grain boundaries. This model simultaneously takes into account the movement of grains and changes of grain sizes.

Original languageEnglish
Title of host publicationGrain Boundary Diffusion, Stresses and Segregation
PublisherTrans Tech Publications Ltd
Pages135-142
Number of pages8
Volume309-310
ISBN (Print)9783037850558
DOIs
StatePublished - 1 Jan 2011

Keywords

  • Concentration profile
  • Effective growth exponent
  • Grain boundaries
  • Interdiffusion
  • Non-equilibrium vacancies
  • Sinks/sources of vacancies

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