Abstract
In situ CeB6/Al composite has been proven to be an effective refiner for commercial pure aluminum, however, it remains unclear as to the mechanisms of synthesis and grain refinement. We use low-temperature alloying and high-speed melt spinning to optimize the microstructure of CeB6. It is found that in situ CeB6/Al composite shows controllable microstructure and its refining effect is obviously dependent on the size of CeB6 particle/cluster. As nano-CeB6 particles self-assemble into submicron clusters, the inoculant shows significantly enhanced refining effect, reducing the grain size of pure aluminum to ∼110 μm. The refining mechanism is attributed to the combining effect of the cluster structure in submicron scale and the excellent crystallography matching relationship of CeB6 and Al. Mechanical properties of pure aluminum are also improved by addition of in situ CeB6/Al composite inoculant due to collaboration effect of dispersion strengthening and grain refining strengthening.
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.
