Abstract
This study investigated the effect of Si content on the corrosion behavior of AlZrNbTiSix (x=0, 0.3, 0.6, 1.0 at%) lightweight refractory high-entropy alloys in a 1 M HNO3 solution. The results showed a transformation in the microstructures of AlZrNbTiSix from a single BCC phase (x=0) to a BCC matrix phase with Zr5Al3 hexagonal precipitated phases (x=0.3, 0.6, 1.0). AlZrNbTiSi0.6 exhibited the best corrosion resistance, attributed to the addition of Si promoting the growth of continuous and dense oxides. Microgalvanic corrosion affected the formation of the oxide film, triggering an excessive amount of Si worsening the stability of the passive film.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
