Abstract
In this paper, a CrFeNiAl0.2Si0.2 high entropy alloy (HEA) was fabricated via laser-surface melting (LSM). The result shows that, this HEA could form fully BCC structure under such rapid-solidification condition. Moreover, it exhibits excellent corrosion resistance in 3.5 wt% NaCl solution with two-stage passivation, and could maintain good protectiveness until 1.06 V vs SCE during electrochemical polarization, which is much higher than stainless steel. In addition, this rapid-solidified HEA shows high hardness of ∼667 Hv. Such excellent corrosion resistance and unique passivation process are possibly caused by the diversity in compositional constitution of the passive films under different electrochemical corrosion conditions. This work provides a novel route for designing low-cost corrosion-resistant HEAs with high hardness for coating applications.
Sign-in/Register to access full text options 
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.
