FIELD: metallurgy.
SUBSTANCE: proposed composition contains the following substances, in wt %: carbon - 0.07-0.12, chromium - 12.9-13.5, cobalt - 5.3-5.9, tungsten - 6.7-7.3, molybdenum - 0.8-1.2, aluminium - 3.2-3.5, titanium - 4.4-4.7, boron - 0.010-0.015, copper ≤0.04, sulphur ≤0.005, phosphorus ≤0.005, nitrogen ≤15 ppm, oxygen ≤15 ppm, calcium - 0.00-0.02, magnesium - 0.00-0.02, manganese - 0.01-0.3, at least two elements selected from the group: iron, silicon and barium, ≤0,2 each, and at least two elements selected from the group: yttrium, lanthanum, neodymium, samarium, 0.005-0.05 each, nickel making the rest.
EFFECT: higher structural homogeneity and long-term hardness of blades with equiaxial structure, higher resistance to oxidation and corrosion.
3 cl, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| HEAT-RESISTANT ALLOY BASED ON NICKEL FOR CASTING OF BLADES OF GAS-TURBINE UNITS | 2014 |
|
RU2570130C1 |
| REFRACTORY ALLOY ON NICKEL BASE FOR CASTING OF NOZZLE VANES WITH EQUIAXIAL STRUCTURE OF GAS TURBINE PLANTS | 2014 |
|
RU2576290C1 |
| BLADE OF GAS-TURBINE UNIT MADE OF HEAT-RESISTANT NICKEL-BASED ALLOY AND MANUFACTURING METHOD THEREOF | 2014 |
|
RU2581339C1 |
| HEAT-RESISTANT NICKEL-BASED CAST ALLOY AND AN ARTICLE MADE THEREFROM | 2018 |
|
RU2674274C1 |
| HEAT AND CORROSION RESISTANT NICKEL-BASED ALLOY FOR CASTING OF LARGE-SIZED WORKING AND NOZZLE BLADES OF GAS-TURBINE UNITS | 2018 |
|
RU2678353C1 |
| HEAT-RESISTANT ALLOY BASED ON NICKEL FOR MANUFACTURE OF BLADES OF GAS-TURBINE UNITS | 2014 |
|
RU2538054C1 |
| NICKEL-BASE HEAT RESISTANT ALLOY FOR CASTING NOZZLE VANES OF GAS TURBINE PLANTS | 2017 |
|
RU2636338C1 |
| REFRACTORY NICKEL-BASED ALLOY FOR CASTING GAS TURBINE WORKING BLADES | 2014 |
|
RU2542194C1 |
| REFRACTORY ALLOY ON NICKEL BASE FOR CASTING OF NOZZLE VANES WITH EQUIAXIAL STRUCTURE OF GAS TURBINE PLANTS | 2014 |
|
RU2542195C1 |
| HEAT-RESISTANT ALLOY BASED ON NICKEL FOR MANUFACTURE OF BLADES OF GAS-TURBINE UNITS AND METHOD OF ITS HEAT TREATMENT | 2014 |
|
RU2539643C1 |
