HEAT RESISTANT TITANIUM ALLOY Russian patent published in 2010 - IPC C22C14/00 

FIELD: metallurgy.

SUBSTANCE: invention refers to metallurgy of titanium alloys and can be used for parts and units of rocket and aircraft engines operating under high loads at temperature up to 750-800°C. Here is disclosed heat-resistant titanium alloy. Alloy contains wt %: aluminium 5.0-7.5, zirconium 3.0-5.0, tungsten 5.0-7.5, hafnium 0.005-0.2, titanium - the rest. Contents of aluminium Al and tungsten W meet inequality, wt %: [W-Al] ≤ 0.5. The alloy is produced in a vacuum-arc furnace by the method of double melting. Items made out of disclosed here alloy operate at temperature up to 750°C at continuous load and to 800°C° at short-time load.

EFFECT: high heat strength and heat resistance of alloy.

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