Abstract
In this study, an Al 0.3CoCrFeNiC 0.1 high entropy alloy was synthesized by induction melting in air. The as-cast alloy was heat treated for 5–72 h at 600–1000 °C to investigate the effects of age treatments on the hardness and microstructure. The microstructure of the as-cast alloy consisted of a FCC solid solution matrix and an eutectic k 1 carbide. This k 1 carbide decomposed to a k 2 carbide after being aged at 800–1000 °C. The optimal age hardening occurred at 700 °C, and the hardening effect decreased with further increase in temperature. The precipitation of fine k 2 carbides in the matrix during 700–1000 °C aging is the main age hardening mechanism. In addition, the precipitation of a Ni–Al rich phase at 800 °C and 900 °C provides a secondary hardening effect.
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.
