Metal treatment – Stock – Age or precipitation hardened or strengthened
Patent
1986-12-23
1993-01-05
Nelson, Peter A.
Metal treatment
Stock
Age or precipitation hardened or strengthened
148421, 148472, 420421, 420583, 420588, G22C 1400, G22C 3300
Patent
active
051767627
ABSTRACT:
A beta titanium alloy having exceptional high temperature strength properties in combination with an essential lack of combustibility is described. In its basic form the alloy contains chromium, vanadium and titanium the nominal composition of the basic alloy being defined by three points on the ternary titanium-vanadium-chromium phase diagram: Ti-22V-13Cr, Ti-22V-36Cr, and Ti-40V-13% Cr. The alloys of the invention are comprised of the beta phase under all the temperature conditions, have strengths much in excess of the prior art high strength alloys in combination with excellent creep properties, and are nonburning under conditions encountered in gas turbine engine compressor sections.
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Nelson Peter A.
Sohl Charles E.
United Technologies Corporation
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