Poor performance of advanced engineering materials, during long term servicing at high
temperature, is closely related to thermal stability of the microstructures. Instability of the …

As nanocrystalline (NC) materials exhibit many unique properties, which are often superior
to the properties of their coarse-grained counterparts, they offer significant potential for use …

The limitation of nanograined materials is their strong tendency to coarsen at elevated
temperatures. As grain size decreases into the nanoscale, grain coarsening occurs at much …

Grain refinement into the nanoscale greatly hardens metals and alloys but reduces the
stability. By means of cryogenic plastic deformation at very high strain rates, a high …

Grain boundary segregation provides a method for stabilization of nanocrystalline metals—
an alloying element that will segregate to the boundaries can lower the grain boundary …

Multicomponent alloying can be utilized to enhance the thermal stability of nanocrystalline
alloys. The grain boundary energy can be reduced significantly via both bulk and grain …

Data from the literature and our laboratory have been reviewed regarding the maximum
homologous temperatures that can be attained by the addition of solute elements that may …

Nanocrystalline (NC) metals suffer from an intrinsic thermal instability; their crystalline grains
undergo rapid coarsening during processing treatments or under service conditions. Grain …

Solute segregation at grain boundaries (GBs) is a key mechanism to stabilize
nanocrystalline alloys. To date, the standard approach to design and screen for …

The work presented here was motivated by the need to develop a predictive model for
thermodynamic stabilization of binary alloys that is applicable to strongly segregating size …