Abstract
NiAl-based high alloy doped with boron was produced by centrifugal SHS and then subjected to remelting at several remelting temperatures (Trm) above its melting point (Tm = 1640°C) in order to elucidate the influence of Trm on structural heredity of the synthesized alloy. Induction remelting in vacuum at Trm > Tm + 100°C was found to markedly enlarge the size of structural constituents and lead to liquation. The remelting at 1740°C did not result in formation of new phases; it gave rise only to some redistribution of structural constituents The synthesized allow comprised a matrix of NiAl-based solid substitutional solution with embedded reticular inclusions of Ni20Al3B6 and lamellar (Mo,Cr)B precipitate.
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