Models of Interdiffusion in a Polycrystalline Alloy: Kirkendall Effect versus Non-Equilibrium Vacancies and Backstress

Andriy Gusak; Nadiya Storozhuk; King-Ning Tu

doi:10.4028/www.scientific.net/DDF.309-310.135

Paper Titles

Effect of Diffusion Induced Driving Forces on Interdiffusion - Stress Development/Relaxation and Kinetics of Diffusion Processes
p.113

Segregation in Single-Crystal Nickel-Base Superalloys
p.121

Reactive Diffusion upon Planar Dissolving Copper in Solder Melts
p.127

Models of Interdiffusion in a Polycrystalline Alloy: Kirkendall Effect versus Non-Equilibrium Vacancies and Backstress
p.135

Diffusion in Point Contact Reaction
p.143

Pre-Stressed Sub-Surface Contribution on Bulk Diffusion in Metallic Solids
p.149

The Effect of Plastic Deformation on Nitrogen Diffusion in α-Fe
p.155

Redistribution of Alloy Elements during Nickel Silicide Formation: Benefit of Atom Probe Tomography
p.161

HomeDefect and Diffusion ForumDefect and Diffusion Forum Vols. 309-310Models of Interdiffusion in a Polycrystalline...

Models of Interdiffusion in a Polycrystalline Alloy: Kirkendall Effect versus Non-Equilibrium Vacancies and Backstress

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.

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Periodical:

Defect and Diffusion Forum (Volumes 309-310)

Pages:

135-142

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.309-310.135

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Online since:

March 2011

Authors:

Andriy Gusak, Nadiya Storozhuk, King-Ning Tu

Keywords:

Concentration Profile, Effective Growth Exponent, Grain Boundary, Interdiffusion, Non-Equilibrium Vacancies, Sinks of Vacancy, Sources of Vacancy

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References

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