T. Itsukaichi et al., MECHANICAL ALLOYING OF AL-TI POWDER MIXTURES AND THEIR SUBSEQUENT CONSOLIDATION, Journal of materials research, 8(8), 1993, pp. 1817-1828
Mechanically alloyed mixtures of elemental Al and Ti powders have been
characterized in the as-milled condition, as well as after hot consol
idation. Ball-milling in an argon atmosphere first induces alloying of
the elements, followed by the formation of a certain amount of an amo
rphous-like phase. This amount increases as the equiatomic composition
is approached. However, milling in nonsealed mills usually leads to t
he production of some form of titanium nitride, particularly in Ti-ric
h mixtures. In the consolidated products obtained from long-milled pow
ders, intermetallic compounds were found to be the predominant phases.
The existence of an amorphous phase in the as-milled powders consider
ably facilitates their hot consolidation.