Grain Boundary Self-Diffusion in Nickel

Vĕra Rothová; Jiří Buršík; Milan Svoboda; Jiří Čermák

doi:10.4028/www.scientific.net/DDF.263.207

Paper Titles

Diffusional Growth Kinetics of Boride Layers at the 13% Cr Steel Interface with Amorphous Boron
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Diffusion of Zinc in Two-Phase Mg-Al Alloy
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Microstructural Stability of Dissimilar Weld Joint of Creep-Resistant Steels with Increased Nitrogen Content at 500 – 900 °C
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Diffusion in the Presence of Twin Boundaries
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Grain Boundary Self-Diffusion in Nickel
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Study of Kirkendall Effect in Ni/Ni₃Al Welded Joint after the High Temperature Annealing
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Diffusion in Transition Metal Diborides - An Overview
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Carbon and Nitrogen Activities of Materials of Weld Joints
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Study of Reaction Diffusivity in the Copper–Indium–Tin Ternary System
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HomeDefect and Diffusion ForumDefect and Diffusion Forum Vol. 263Grain Boundary Self-Diffusion in Nickel

Grain Boundary Self-Diffusion in Nickel

Abstract:

Grain boundary self-diffusion in both the cast and the cold-rolled Puratronic 4N5 nickel was studied in the temperature range from 600 °C to 1000 °C. The experiments were carried out with the samples pre-annealed at 1100 °C in comparison to the samples pre-annealed at intended individual diffusion temperatures. The relative grain orientation was analyzed on the same samples by means of electron backscatter diffraction (EBSD) and grain boundaries (GBs) were characterized in terms of the coincidence site lattice (CSL) model. Considering the non-linear Arrhenius temperature dependencies obtained for most specimens by using conventional method of profile evaluation in the B-type kinetics and the appearance of two high-diffusivity paths in diffusion profiles measured, a more suitable BB-type and AB-type diffusion models were applied for data evaluation.

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Periodical:

Defect and Diffusion Forum (Volume 263)

Pages:

207-212

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.263.207

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Online since:

March 2007

Authors:

Vĕra Rothová, Jiří Buršík, Milan Svoboda, Jiří Čermák

Keywords:

Electron Backscatter Diffraction (EBSD), Grain Boundary Diffusivity, Nickel Ni, Self-Diffusion, Twin

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