Introduction of scandium, zirconium and hafnium into aluminum alloys. Dispersion hardening of intermetallic compounds with nanodimensional particles
Annotation
The state of intermetallic compounds Al3Sc, Al3Zr, Al3Hf and slag shots introduced by high-temperature exchange reactions of corresponding fluoride-chloride salts with liquid aluminum has been studied. The particle size and segregation direction during centrifugation and filtration of melt have been examined by microscopy and local X-ray analysis methods. The dispersoids formed during decomposition of solid solution are strong phase reinforcers.
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