Thermo-Mechanical Properties and Oxidation Behavior of FeCrAl Alloys with Si and Y Addition
Year: 2025
Type: article
Abstract: The chemical composition of FeCrAl alloy significantly influences its thermal-mechanical as well as anti-corrosive properties. This study investigates the impact of silicon and yttrium additions on the thermal-mechanical properties and high-temperature oxidation resistance of FeCrAl alloy. The results indicate that thermal conductivity gradually decreases with the incorporation of Y or Si into the lattice, whereas the mechanical strength of the alloy can be enhanced through the addition of Y. A trace amount of Y can improve the alloy’s high-temperature oxidation resistance by mitigating the spallation of the surface oxidation film and promoting the growth of the film, characterized by heterogeneous chemical composition and microstructure. It is observed that Y possesses a higher charge density than FeCrAl, suggesting that Y can lose electrons more readily than other elements, which implies a reduction in oxygen diffusion.
Source: Metals
DOI: 10.3390/met15040433
Authors: Yanzhao Ni, Wen Qi, Liangshuo Zhao, Dong Li, Yingjie Qiao, Jingxue Zhou, Peng Wang, Kun Yang
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,137
Awards: G3288369211, G4863457808
OpenAlex ID: W4409434262