Lockheed Horizons, Number 24, September 1987 Page: 24
This periodical is part of the collection entitled: Convair/General Dynamics Newsletters and was provided to The Portal to Texas History by the Lockheed Martin Aeronautics Company, Fort Worth.
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Figure 7 Refinement of microstructure by RSP,
ing disc and is further cooled by gas
streams as it flies off the edge of the
disc. Figure 6 shows a gas-atomized
aluminum-lithium (Al-Li) powder
produced for a Lockheed program.
In all the above products, extreme-
ly fine microstructures are found, as
illustrated in Figure 7 for a novel Al-
Li-Be alloy. After producing RSP
flake, ribbon, or powder, it is then
necessary to consolidate these partic-
ulates into a useful product, such as F
sheets, rods and bars. Examples of
methods to achieve consolidation are
shown in Figure 8. If the tempera-
tures encountered during solidifica-
tion are too high, the benefits re-
sulting from RSP may be lost.
Aluminum Alloys by RSP
Aluminum alloys have been widely
used in the aerospace industry since
World War I because of their combi-
nation of low density and high
strength. A number of novel alloy sys-
tems are under development as a re-
sult of new, demanding performance
requirements for fighter aircraft, such
as the Advanced Tactical Fighter
(ATF) shown in Figure 9. There are
four major areas of new aluminum al-
loy developments, as shown in Figure
10. In all of these cases, RSP is a vital
component in achieving the new
properties. Lockheed has played a Fat right, compared to cast microstructure at left.
igure 8 Consolidation methods for RSP alloys.
igure 9 Artist's concept of the Advanced Tactical Fighter (ATF).
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Lockheed Corporation. Lockheed Horizons, Number 24, September 1987, periodical, September 1987; Burbank, California. (https://texashistory.unt.edu/ark:/67531/metapth1091902/m1/26/: accessed June 10, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting Lockheed Martin Aeronautics Company, Fort Worth.