FeCrAl Alloy

FeCrAl alloy is an alloy with excellent high-temperature oxidation resistance and low cost, which is currently considered as a hot spot in the research of accident tolerant fuel (ATF) casing materials.
This alloy is formed by adding Cr and Al elements to the Fe matrix to form a material with specific organization and properties. The excellent properties of FeCrAl alloys are mainly attributed to their corrosion resistance in oxygen-saturated liquid lead-bismuth (LBE) environments, where the generation of layered Al-rich, Cr-rich spinel and Al2O3 oxide film is the key to improve its corrosion resistance.
In addition, the FeNiCrAl biphasic alloy formed by further addition of Ni elements to the FeCrAl-based alloy possesses excellent overall mechanical properties, with an ultimate tensile strength of 1 GPa and a total elongation of more than 20%, demonstrating its potential as an advanced ATF cladding. It shows the potential as an advanced ATF cladding material.