We have used the Titanium—6 Aluminum—4 Vanadium alloy for many
years and stretched its capabilities to a maximum. In the
United States it is called the "work horse alloy" (fig. 28) and
that is the reason for showing the horse along with the name of
the alloy.

What we are trying to do in Titanium, with rapid solidifi—
cation, is improve the properties by these kinds of levels.
Fig. 29 shows some of the advantages we're looking for, using
rapid solidification. We would like to be able to improve the
temperature capability of Titanium by as much as 300 degrees
Farenheit. This would be in conventional, terminal type of
Titanium alloys, alloys beyond the alloy 829 and 834 where we
disperse and strenghten the alloys using additions such as rare
earth oxides, rare earth sulphides or also the metalloyds
Carbon and Boron and Silicon perhaps.

I've talked about the strenght of Titanium alloys; using the
rapid solidification approach, we‘re able to produce some
alloys which are not possible using conventional melting
techniques, because of the very high amount of segregation
which occurs with the conventional processing. It would also be
nice to reduce the density of Titanium alloys as I demonstrated
very early on today, density like no other mechanical property
reduces the weight of a component. We get a direct reduction in
the weight when we reduce the density and if we keep everything
else the same. So density is a very big attraction. I've shown
in fig. 30 a density reduction of 40% which would take Titanium
down to the density of Aluminum. That would be a very
attractive Titanium alloy. I see one or two people in the
audience shaking their heads thinking that that is impossible.
I will show you at least, the alloy which is capable of
demonstrating those characteristics. The making of that alloys
is however a challenge.

There have been some advances in the production of Titanium
powder and next picture (31) shows a process which has been

developed under United States Airforce‘s funding, at the