titanium-based titanium aluminum compound.

Compared with the general titanium alloys, titanium, aluminum, sodium-based compound Ti3Al (α2) and TiAl (γ) intermetallic compounds biggest advantage is a good temperature performance (maximum operating temperatures of 816 and 982 ℃), a strong antioxidant capacity, anti-good creep resistance and light weight (density of only nickel-based superalloy 1/2), these advantages make it the aero engine and aircraft structural parts most competitive materials in the future.
Currently, there are two Ti3Al-based titanium alloy Ti-21Nb-14Al and Ti-24Al-14Nb- # v-0.5Mo start mass production in the United States. Other Ti3Al-based titanium recent development has Ti-24Al-11Nb, Ti25Al-17Nb-1Mo and Ti-25Al-10Nb-3V-1Mo like. TiAl (γ) is in the range of interest of the titanium-based composition of Ti- (46-52) Al- (1-10) M (at.%), Where M is v, Cr, Mn, Nb, Mn, Mo and W, at least one element. Recently, TiAl3 titanium based begun to attract attention, such as Ti-65Al-10Ni alloys