FIELD: metallurgy.
SUBSTANCE: heat treatment method of parts like discs of gas-turbine engines from heat-resistant powder nickel-based alloys is proposed and it involves hardening by heating to hardening temperature, exposure and cooling, high-temperature and low-temperature ageing. Cooling after exposure at hardening temperature is performed in the air; low-temperature ageing is performed at temperature that is by 20-50 °C lower than temperature of the beginning of formation of secondary carbides; at that, difference between ageing temperatures is 120-160 °C, and after ageing the parts are cooled in the air.
EFFECT: increasing ductility at room test temperature and long-term strength at operating temperature; increasing service life of modern gas-turbine engines.
1 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| HEAT TREATMENT METHOD OF DISC-TYPE PARTS OF GAS-TURBINE ENGINES FROM HEAT-RESISTANT POWDER NICKEL ALLOYS | 2010 |
|
RU2433202C1 |
| HEAT TREATMENT METHOD OF HEAT-RESISTANT NICKEL-BASED ALLOYS | 2010 |
|
RU2433201C1 |
| MANUFACTURING METHOD OF DISCS OF GAS-TURBINE ENGINES FROM POWDER HEAT-RESISTANT ALLOYS ON BASIS OF NICKEL | 2010 |
|
RU2433205C1 |
| MANUFACTURING METHOD OF ITEMS IN FORM OF DISCS OR ROLLS OF GAS-TURBINE ENGINES FROM PELLETISED HEAT-RESISTANT NICKEL ALLOYS | 2010 |
|
RU2433204C1 |
| HEAT RESISTANT NICKEL ALLOY FOR PRODUCTION OF ITEMS BY METHOD OF PELLET METALLURGY | 2010 |
|
RU2428497C1 |
| POWDER HEAT RESISTANT ALLOY ON BASE OF NICKEL | 2010 |
|
RU2428498C1 |
| PROCEDURE FOR THERMO-MECHANICAL PROCESSING OF WORK-PIECES OUT OF GRANULES OF HIGH-ALLOYED HEAT-RESISTANT ALLOYS ON NICKEL BASE | 2008 |
|
RU2388844C1 |
| METHOD OF TREATMENT OF HEAT-STRENGTH NICKEL-BASED ALLOYS | 0 |
|
SU876768A1 |
| METHOD FOR HEAT TREATMENT OF DISCS MADE OF HIGH-STRENGTH COMPLEX NICKEL ALLOYS | 1993 |
|
RU2108406C1 |
| METHOD OF HEAT TREATMENT OF ARTICLES MADE FROM HIGH-TEMPERATURE DEFORMABLE PRECIPITATION HARDENING NICKEL-BASED ALLOYS | 2004 |
|
RU2256723C1 |
