Concentration Characteristics of Diffusion-Induced Recrystallization

Guido Schmitz; B. Kruse; D. Baither; T.H. Kim

doi:10.4028/www.scientific.net/DDF.289-292.719

Paper Titles

Impact of Carbon on the Diffusion of Donor Atoms in Germanium
p.689

Diffusion in Isotope Heterostructures Investigated by Neutron Reflectometry
p.697

Atomic Diffusion and its Relation to Thermodynamic Forces in Al-Ni Melts
p.705

Solute Diffusion in Grain Boundaries – Outside the Scope of Fisher Model
p.711

Concentration Characteristics of Diffusion-Induced Recrystallization
p.719

Jump Frequencies of Cd Tracer Atoms in L1₂ Lanthanide Gallides
p.725

Computer Simulation of Diffusion in Dilute Al-Fe Alloys
p.733

Following the First Steps of UV Degradation of High Density Polyethylene by Fluorescence Spectroscopy
p.741

First-Principle Calculation of Monovacancy and Divacancy Interactions with Atomic Oxygen in Nickel: Thermal Expansion Effects
p.747

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Concentration Characteristics of Diffusion-Induced Recrystallization

Abstract:

Diffusion-induced recrystallization (DIR) is investigated in Au/Cu and Ag/Pd thin-film interdiffusion couples. It is experimentally demonstrated that several generations of new grains are formed inside the diffusion zone by a cascade-like process. Each generation is distinguished by a characteristic composition level. In order to understand the observed composition levels quantitatively, a thermo-mechanic model has been derived, which determines the thermo-elastic driving force to the grain boundary. By the model, it is shown that those grains dominate the diffusion zone, which develop the maximum possible stress in front of the moving boundary.