FIELD: metallurgy.
SUBSTANCE: invention refers to production of items from heat-resistant wrought nickel alloys working at temperatures of more than 600°C, namely gas turbine engine discs. There proposed is method for obtaining the item from wrought heat-resistant nickel alloy, which involves vacuum induction melting, production of workpiece to be deformed, homogenising annealing, pre-deformation, final deformation so that the item is produced. Homogenising annealing is performed in four steps, heating for pre-deformation is performed in two steps, heating for final deformation is performed in two steps. The items obtained by means of the proposed method have increased life time and reliability, and can be used in perspective gas turbine engines.
EFFECT: decreasing metal flow stress at deformation of workpieces and increasing yield ratio.
2 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| PROCEDURE FOR FABRICATING DIE OF DISK OUT OF INGOTS OF HIGH GRADIENT CRYSTALLISATION OF NICKEL ALLOYS | 2009 |
|
RU2389822C1 |
| METHOD OF PRODUCTION OF ARTICLES FROM HIGH-TEMPERATURE NICKEL ALLOY | 2004 |
|
RU2256722C1 |
| METHOD FOR MANUFACTURING INKING DISCS FROM HIGH-RESISTANT NICKEL ALLOYS | 2009 |
|
RU2404283C1 |
| METHOD FOR OBTAINING IRREGULAR-SHAPED DISCS FROM HIGH-RESISTANT NICKEL ALLOYS | 2009 |
|
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| METHOD FOR OBTAINING COMPLEX-SHAPED PRODUCTS FROM HIGH-ALLOY HEAT-RESISTANT NICKEL ALLOYS CONTAINING MORE THAN 30% OF STRENGTHENING G'-PHASE | 2021 |
|
RU2753103C1 |
| METHOD OF PRODUCTION OF ITEMS FROM HIGH-TEMPERATURE WROUGHT NICKEL ALLOY | 2005 |
|
RU2301845C1 |
| METHOD OF PRODUCT'S RECEIVING MADE OF HIGH-ALLOY HEAT-RESISTANT NICKEL ALLOY | 2008 |
|
RU2368695C1 |
| METHOD OF MANUFACTURE OF HIGH-ALLOYED HIGH-TEMPERATURE NICKEL ALLOY | 2004 |
|
RU2256721C1 |
| METHOD OF OBTAINING A PRODUCT OF HEAT-RESISTANT NICKEL ALLOY | 2017 |
|
RU2649103C1 |
| METHOD OF PRODUCT RECEIVING FROM HEATPROOF NICKEL ALLOY | 2008 |
|
RU2371512C1 |
