|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Advances in Multi-Principal Elements Alloys X: Alloy Development and Properties
||Oxidation Characteristic of Complex Concentrated Alloys FeAlCrV and FeAlCrMo
||Eliska Jaca, Peter Minárik, Josef Pešička, Stanislav Daniš, Adam Hotař
|On-Site Speaker (Planned)
Complex concentrated alloys (CCA) represent a new interesting class of metallic materials as some of the CCAs exhibit remarkable properties. In this study, two alloys have been investigated - FeAlCrV and FeAlCrMo, with equiatomic composition. Excellent high-temperature mechanical properties of both alloys were already reported, but potential risks associated with high-temperature oxidation and/or electrochemical oxidation are still unknown. For this reason, this study is primarily focused on this issue. Room temperature corrosion resistance measurement was performed via a potentiodynamic test in 3.5% NaCl and 0.5 M H2SO4 solution. The results showed that both alloys have excellent corrosion resistance, especially in comparison with AISI 304 alloy. High-temperature oxidation tests were performed at four temperatures (600 °C – 800 °C). The results showed that the investigated alloys exhibit poor oxidation resistance at elevated temperatures. Further characterization of the formed oxide scales was performed by XRD and SEM and compared with the theoretical model.
||High-Entropy Alloys, High-Temperature Materials, Characterization