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Published in: Journal of Materials Science 14/2013

01-07-2013

Effect of ternary solute interaction on interfacial segregation and grain boundary embrittlement

Author: Pavel Lejček

Published in: Journal of Materials Science | Issue 14/2013

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Abstract

Effect of ternary solute interaction on interfacial segregation and grain boundary embrittlement in an MIJ system is modeled on the basis of combined Guttmann and Rice–Wang approaches. It is clearly shown that repulsive IJ interaction strengthens interfacial segregation of the impurity I, suppresses segregation of the solute J, and substantially enhances intergranular embrittlement. Attractive interaction exhibits an opposite effect. Generally, the effect of the ternary interaction is weaker than that of the binary one. Although there are only rare experimental data in this respect, their comparison to model calculations shows a very good agreement.

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Footnotes
1
Let us be reminded that a solute segregates at an interface if ∆G I Φ  < 0.
 
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Metadata
Title
Effect of ternary solute interaction on interfacial segregation and grain boundary embrittlement
Author
Pavel Lejček
Publication date
01-07-2013
Publisher
Springer US
Published in
Journal of Materials Science / Issue 14/2013
Print ISSN: 0022-2461
Electronic ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-013-7280-2

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