Intermetallics: past, present and future
DOI:
https://doi.org/10.3989/revmetalm.2005.v41.iExtra.1084Keywords:
Intermetallics, Ni-base, Fe-base and Ti-base intermetallic compounds, High temperature strength, Aerospace applicationsAbstract
Intermetallics have seen extensive world-wide attention over the past decades. For the most part these studies have examined multi-phase aluminide based alloys, because of their high stiffness, combined with reasonable strength and ductility, good structural stability and oxidation resistance, and attempted to improve current Ni-base superalloys, Ti-base alloys, or Fe-base stainless steels for structural aerospace applications. The current status of development and application of such materials is briefly reviewed. Future developments are taking intermetallics from the realm of "improved high-temperature but low-ductility metallic alloys" into the realm of "improved aggressive-environment, high-toughness ceramic-like alloys". Such evolution will be outlined.
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