| Abstract Scope |
In order for eco-friendly energy-related businesses such as small modular reactors, high-temperature water electrolysis, ammonia cracking, and lithium-ion battery recycling to gain momentum, it is essential to develop highly cost-effective customized materials. High-entropy alloys are attracting attention as new-concept structural alloys that can be applied to multiple extreme environments such as high temperature, extremely low temperature, radiation, hydrogen, and corrosion.
In this study, we aim to introduce the L21 precipitated phase-reinforced Al-Cr-Fe-Ni-Ti ferritic alloys as cost-effective heat-resistant and corrosion-resistant materials. Since understanding the interface coherency between the precipitates and the matrix is important for the tensile and creep properties of precipitation-strengthened heat-resistant alloys, this study attempted to investigate in depth the effects of the fraction, size, distribution, and shape of the precipitates on the mechanical properties. We would also like to discuss oxide film control technology, which has a significant impact on corrosion resistance. |