Publication details
Applied Thermodynamics: Grain Boundary Segregation
| Authors | |
|---|---|
| Year of publication | 2014 |
| Type | Article in Periodical |
| Magazine / Source | Entropy |
| MU Faculty or unit | |
| Citation | |
| Web | http://www.mdpi.com/1099-4300/16/3/1462 |
| Doi | http://dx.doi.org/10.3390/e16031462 |
| Field | Solid matter physics and magnetism |
| Keywords | APPLIED TENSILE-STRESS; LOW-ALLOY STEEL; INTERFACIAL SEGREGATION; SOLUTE INTERACTION; ALPHA-IRON; PHOSPHORUS; ANISOTROPY; EMBRITTLEMENT; ENTHALPY |
| Description | 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 |
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