In this paper first a generally valid model is derived from the two fundamental equations of
Gibbs for temperature and composition dependences of all types of interfacial energies. This …

As high-entropy alloys receive an increasing amount of attention, an interesting scientific
question arises: can grain boundaries be “high entropy”? In 2016, we proposed “high …

Grain boundary (GB) segregation can drastically affect both the thermal stability and fracture
strength of nanocrystalline metals. Underlying physics of the correlation between the above …

First-principles calculations of the Σ5 (310) grain boundary in Fe with B, C and P were
performed to reveal the mechanism of P-caused embrittlement and de-embrittling effect of B …

Nanocrystalline alloys can be stabilized through selective grain boundary segregation of
specific solute element additions. Increasing attention is being paid to ternary and higher …

Elemental segregation around extended defects is common in high-entropy alloys (HEAs)
composed of multi-principal elements, which profoundly impacts their mechanical …

In previous reports, experimental studies have shown that both thermal stability and strength
can be controlled by grain boundary (GB) segregation. In this study, we investigate the …

Grain boundary segregation is of increasing importance for stabilizing nanocrystalline
alloys, and while segregation is typically modeled as a scale-independent phenomenon, at …

Starting with a fairly comprehensive database on experimental results on enthalpy and
entropy of grain boundary segregation, the detrimental influence of ignoring the segregation …

This paper presents a brief description of the role of interfacial energies in the understanding
and control of nanocrystalline complex oxides in both particulate and bulk forms. Interfacial …