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Entropy 2014, 16(3), 1462-1483; doi:10.3390/e16031462
Article

Applied Thermodynamics: Grain Boundary Segregation

1,* , 2
, 3
 and 4,5,6
Received: 5 February 2014; in revised form: 20 February 2014 / Accepted: 28 February 2014 / Published: 12 March 2014
(This article belongs to the Special Issue Advances in Applied Thermodynamics)
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Abstract: Chemical composition of interfaces—free surfaces and grain boundaries—is generally described by the Langmuir–McLean segregation isotherm controlled by Gibbs energy of segregation. Various components of the Gibbs energy of segregation, the standard and the excess ones as well as other thermodynamic state functions—enthalpy, entropy and volume—of interfacial segregation are derived and their physical meaning is elucidated. The importance of the thermodynamic state functions of grain boundary segregation, their dependence on volume solid solubility, mutual solute–solute interaction and pressure effect in ferrous alloys is demonstrated.
Keywords: interfacial segregation; Gibbs energy of segregation; enthalpy; entropy; volume; grain boundaries; iron interfacial segregation; Gibbs energy of segregation; enthalpy; entropy; volume; grain boundaries; iron
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Lejček, P.; Zheng, L.; Hofmann, S.; Šob, M. Applied Thermodynamics: Grain Boundary Segregation. Entropy 2014, 16, 1462-1483.

AMA Style

Lejček P, Zheng L, Hofmann S, Šob M. Applied Thermodynamics: Grain Boundary Segregation. Entropy. 2014; 16(3):1462-1483.

Chicago/Turabian Style

Lejček, Pavel; Zheng, Lei; Hofmann, Siegfried; Šob, Mojmír. 2014. "Applied Thermodynamics: Grain Boundary Segregation." Entropy 16, no. 3: 1462-1483.


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