FIELD: metallurgy.
SUBSTANCE: invention relates to manufacturing of castable heat-resistant corrosion-resistant alloys on the basis of nickel, provided for casting of monocrystalline turbine blades of gas-turbine engines of directional crystallisation, and can be used in terrestrial gas-turbine engines, aircraft gas-turbine engines and gas-pumping installations, operating in conditions of long-term thermal effect in corrosive medium, for instance, with usage natural gas in the capacity of fuel, containing sulphur compound. Alloy contains components in a following ratio, wt %: carbon 0.04-0.06; chrome 11.2-11.8; cobalt 4.5-5.5; tungsten 6.7-7.3; molybdenum 0.6-1.0; titanium 4.3-4.7; aluminium 3.2-4.0; tantalum 3.7-4.3; boron 0.008-0.012; yttrium 0.020-0.040; lanthanum 0.005-0.015; silicon 0.1-0.3; niobium 0.02-0.2; zirconium 0.02-0.1, nickel - the rest.
EFFECT: it is increased workability of gas-turbine engine working blades, operating in conditions of long-term thermal effect in corrosive mediums.
2 cl, 2 tbl
Title | Year | Author | Number |
---|---|---|---|
COMPOSITION OF HEAT-RESISTANT NICKEL ALLOY (VERSIONS) | 2007 |
|
RU2353691C2 |
REFRACTORY NICKEL-BASED ALLOY FOR CASTING GAS TURBINE WORKING BLADES | 2013 |
|
RU2524515C1 |
CAST HEAT-RESISTANT NICKEL-BASED ALLOY AND PRODUCT MADE THEREOF | 2016 |
|
RU2633679C1 |
NICKEL-BASED CAST HEAT RESISTANT ALLOY AND PRODUCT MADE FROM IT | 2013 |
|
RU2530932C1 |
REFRACTORY NICKEL-BASED ALLOY FOR CASTING GAS TURBINE HOT SECTION PARTS | 2013 |
|
RU2519075C1 |
REFRACTORY NICKEL-BASED ALLOY FOR CASTING GAS TURBINE WORKING BLADES | 2013 |
|
RU2525883C1 |
REFRACTORY ALLOY ON NICKEL BASE FOR CASTING OF NOZZLE VANES WITH EQUIAXIAL STRUCTURE OF GAS TURBINE PLANTS | 2014 |
|
RU2576290C1 |
CAST CORROSION-RESISTANT NICKEL-BASED POLYCRYSTALLINE SUPERALLOY | 2022 |
|
RU2803779C1 |
CAST HEAT-RESISTANT NICKEL ALLOY WITH MONOCRYSTALLINE STRUCTURE | 2021 |
|
RU2769330C1 |
NICKEL-BASE HEAT RESISTANT ALLOY FOR CASTING NOZZLE VANES OF GAS TURBINE PLANTS | 2017 |
|
RU2636338C1 |
Authors
Dates
2009-05-10—Published
2007-06-27—Filed