Microstructure of Al-5Ti-1B-1RE nanoribbon and its refining efficiency on as-cast A356 alloys
2013
Abstract The novel Al-5Ti-1B-1RE nanoribbons were synthesized by melt-spinning. The microstructure showed that the Al-5Ti-1B-1RE nanoribbon consisted of granular-like TiB 2 and core-shell-like TiAl 3 /Ti 2 Al 20 Ce. The Al-5Ti-1B-1RE nanoribbon could give rise to the excellent refining effect on as-cast A356 alloys. The refining efficiency and formation mechanism of Al-5Ti-1B-1RE nanoribbons were investigated. In accordance with the experimental results, it could be seen that the Al-5Ti-1B-1RE nanoribbon could maintain the refining effect after 60 min of holding. Additionally, owing to the addition of Al-5Ti-1B-1RE nanoribbon, the mechanical properties of A356 alloys could be enhanced significantly.
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