Irradiation response of innovatively engineered metastable TRIP high entropy alloy

Properties and radiation responses of a metastable high entropy alloy (HEA) exhibiting the transformation induced plasticity (TRIP) effect were studied. Innovative engineering used to manufacture this HEA has shown superior mechanical and corrosion properties in 3.5% NaCl than most advanced stainless steels. The microstructural evolution and corresponding mechanical response after irradiation have been evaluated using detailed transmission electron microscopy, and nanoindentation. The study shows a change in metastability of the alloy with irradiation via a recovery mechanism, where the irradiation-induced transformation is reversed by the temperature-induced transformation, thereby introducing the concept of self-healing, made possible due to the TRIP behavior of HEA.(c) 2022 Elsevier B.V. All rights reserved.

Automated summary

Properties and radiation responses of a metastable high entropy alloy (HEA) exhibiting the transformation-induced plasticity (TRIP) effect were studied. The innovative engineering used to manufacture this HEA has demonstrated superior mechanical and corrosion properties compared to most advanced stainless steels in 3.5% NaCl. The microstructural evolution and corresponding mechanical response after irradiation were evaluated using detailed transmission electron microscopy and nanoindentation. The study reveals a change in the alloy's metastability with irradiation through a recovery mechanism, where the irradiation-induced transformation is reversed by the temperature-induced transformation, introducing the concept of self-healing made possible by the TRIP behavior of HEA.