Irradiation response of innovatively engineered metastable TRIP high entropy alloy

Feasibility Studies and Downselection of New Materials and Manufacturing Technologies for Nuclear Applications

“…Although the first two strategies mentioned previously, (a) and (b), can only augment the radiation resistance of the HEAs to a limited extent, the third strategy, (c), enhancing the sink strength of the material, can show multifold improvement in the radiation resistance [53,54,55]. One of the ways to improve the sink strength of the HEAs is to have multiple interfaces either by secondary-phase precipitation or by a multimodal distribution of grain sizes, including nanostructured grains.…”

“…One of the ways to improve the sink strength of the HEAs is to have multiple interfaces either by secondary-phase precipitation or by a multimodal distribution of grain sizes, including nanostructured grains. HEAs offer significant potential for inducing such microstructural heterogeneities, but conventional casting is tedious and time-consuming [53,56,57,58]. For instance, the microstructure of a transformation-induced plasticity (TRIP)-enabled HEA has been innovatively engineered by Agrawal et al for enhanced radiation resistance [53].…”

“…HEAs offer significant potential for inducing such microstructural heterogeneities, but conventional casting is tedious and time-consuming [53,56,57,58]. For instance, the microstructure of a transformation-induced plasticity (TRIP)-enabled HEA has been innovatively engineered by Agrawal et al for enhanced radiation resistance [53]. The processing route involved a preliminary homogenization annealing of the cast HEA followed by a hot rolling to eliminate the cast defects.…”