Segregation of copper in an Fe-Cu alloy under pulsed electric current

Effect of electric current on the segregation of copper precipitates in the Fe-13.6Cu alloy is evaluated. Results of this approach present two stages of segregation, namely, grain-boundary segregation during the solidification and interphase-boundary segregation during the decomposition of a solid s...

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Bibliographic Details
Published inPhilosophical magazine letters Vol. 95; no. 7; pp. 367 - 375
Main Authors Zhang, X.F., Qin, R.S.
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 03.07.2015
Taylor & Francis Ltd
Subjects
Alloys
Copper
COPPER ALLOYS (40 TO 99.3 CU)
COPPER IRON ALLOYS
CURRENT
Diffusion
Electric current
Electric currents
electrical conductivity
Ferrous alloys
free energy
Grain boundaries
PRECIPITATES
Precipitation
SEGREGATION
Segregations
SOLID SOLUTIONS
Solidification
Thermodynamics
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Summary:Effect of electric current on the segregation of copper precipitates in the Fe-13.6Cu alloy is evaluated. Results of this approach present two stages of segregation, namely, grain-boundary segregation during the solidification and interphase-boundary segregation during the decomposition of a solid solution. The segregation becomes apparent not only because the thermodynamic barrier for segregation is decreased, but also because the diffusion is greatly enhanced. Based on the thermodynamic and kinetic aspects, the segregation process under electric current would be of great interest and of physical importance because this kind of electric current-induced segregation was much stronger than the thermal diffusion segregation.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:0950-0839
1362-3036
DOI:10.1080/09500839.2015.1069415