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Concentration Dependence of Grain Boundary Diffusion

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Abstract:

According to different experimental data the grain boundary diffusion the triple product (P) can change in opposite directions after alloying. In this paper the analysis of the effect of alloying for different systems is proposed. It was shown that in Al-based system (Cu diffusion in Al, Zn diffusion in Al) the P value increases with alloying while the solidus temperature according to the phase diagram decreases, in other systems no such tendency can be seen. Estimations based on the segregation factor value demonstrate that some structural effect must be proposed in addition to describe the experimental results.

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Diffusion in Solids and Liquids XI

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Periodical:

Defect and Diffusion Forum (Volume 369)

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1-5

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https://doi.org/10.4028/www.scientific.net/DDF.369.1

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Online since:

July 2016

Authors:

Alexey O. Rodin*, Nikolai Dolgopolov, Alexander Pomadchik

Keywords:

Aluminum, Concentration Dependence, Copper, Grain Boundary Diffusion

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© 2016 Trans Tech Publications Ltd. All Rights Reserved

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