FIELD: metallurgy.
SUBSTANCE: method for treating a nickel-based intermetallic alloy product produced by selective laser fusion includes hot isostatic pressing and subsequent cooling. Before hot isostatic pressing, the article is subjected to heat-vacuum treatment at the temperature of 20-30°C below the melting point of the article alloy for at least 6 hours, hot isostatic pressing is carried out at the temperature 15-25°C below the melting temperature of product alloy for at least 3 hours under pressure 170-200 MPa, and subsequent cooling is carried out up to the temperature by 500-550°C below the melting temperature of the product alloy at a rate not more than 8°C/min. The amount and size of the pores are reduced.
EFFECT: improved performance and service characteristics of complex-profile products, increased density of complex-profile parts of gas turbine engines.
2 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR MANUFACTURING NICKEL-BASED ALLOY DETAILS | 2010 |
|
RU2451767C2 |
| PARTS MANUFACTURING METHOD BY LAYER LASER ALLOYING OF HEAT-RESISTANT ALLOYS BASED ON NICKEL METALLIC POWDERS | 2015 |
|
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| INTERMETALLIDE MATRIX BASED METAL-CERAMIC COMPOSITE MATERIAL AND ITS PRODUCTION METHOD | 2018 |
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|
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| METHOD OF PRODUCTS RECEIVING FROM MONOCRYSTALLINE HEAT-RESISTANT NICKEL ALLOYS | 2007 |
|
RU2353701C1 |
| METHOD TO PROTECT SURFACE OF TURBINE BLADE CASTS AT THERMAL TREATMENT | 2014 |
|
RU2556178C1 |
| METHOD OF PRODUCING VOLUMETRIC ARTICLES FROM HIGH-ENTROPY ALLOY ALLOYED WITH NITROGEN BY SELECTIVE LASER MELTING | 2023 |
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RU2821178C1 |
| METHOD OF CASTS SEALING MADE OF NICKEL ALLOY | 2007 |
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RU2361010C2 |
| METHOD FOR PRODUCING METAL-CERAMIC POWDER COMPOSITION | 2017 |
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RU2644834C1 |
