INTERMETALLIC Ni3Al -BASED ALLOY AND PRODUCT MADE FROM THE SAME

INTERMETALLIC Ni3Al -BASED ALLOY AND PRODUCT MADE FROM THE SAME

FIELD: metallurgy, in particular casting fire-resistant alloys. ^ SUBSTANCE: invention relates to casting fire-resistant intermetallic Ni3Al-based alloy and products, manufactured by precision casting (e.g. moving blades, nozzle blades, combustion chamber constructional elements, leafs and other par...

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Hauptverfasser: BUNTUSHKIN V.P, SOMOVA L.A, KABLOV E.N, BAZYLEVA O.A, BONDARENKO JU.A, SUROVA V.A
Format: Patent
Sprache:eng ; rus
Schlagworte:
ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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creator BUNTUSHKIN V.P
SOMOVA L.A
KABLOV E.N
BAZYLEVA O.A
BONDARENKO JU.A
SUROVA V.A
description FIELD: metallurgy, in particular casting fire-resistant alloys. ^ SUBSTANCE: invention relates to casting fire-resistant intermetallic Ni3Al-based alloy and products, manufactured by precision casting (e.g. moving blades, nozzle blades, combustion chamber constructional elements, leafs and other parts of gas-turbine engines) used in aerotechnics, automobile industry, shipbuilding, as well as to product therefrom. Claimed alloy contains (mass.%) aluminum 8.5-9.5; chromium 4.8-5.5; molybdenum 2.5-3.5; tungsten 2.6-3.2; titanium 1.0-1.6; carbon 0.001-0.005; additionally rhenium 1.5-3.5 and lanthanum 0.0015-0.015; and balance: nickel and inevitable impurities. Products made from disclosed alloy exhibit improved margin of safety and endurance due to increased short-time strength at room temperature, fire-resistance at 11000C (based on100 h-testing), heat resistance at 12500C and fatigue strength at room temperature. ^ EFFECT: improved casting allow and product made from the same. ^ 2 cl, 2 tbl, 1 ex
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subjects ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
title INTERMETALLIC Ni3Al -BASED ALLOY AND PRODUCT MADE FROM THE SAME
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