FIELD: metallurgy.
SUBSTANCE: invention relates to metallurgy, in particular to powder metallurgy, and can be used in making powder compositions for running-in sealing coatings of turbomachine parts, obtained by chemical metallization, for example, chemical nickel plating. Nickel-based powder composition contains hexagonal boron nitride, phosphorus and impurities in the following ratio of components, wt.%: nickel is base, hexagonal boron nitride: 17.0–23.0, phosphorus: 0.51–0.99, impurities are not more than 2.0.
EFFECT: higher quality of coating by increasing the temperature of the melting of the shell, which leads to the lack of the likelihood of the formation of a “nickel plug” in the injector or the nozzle of the powder material, the uniformity of the powder composition is achieved when obtaining the coating.
1 cl, 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| POWDER COMPOSITION FOR WEAR-IN SEALING COATING | 2022 |
|
RU2791299C1 |
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| RUN-IN PACKING OF TURBINE | 2009 |
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RU2429106C2 |
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| WORN-IN SEAL MATERIAL OF TURBOMACHINE | 2018 |
|
RU2696985C1 |
| METHOD OF MAKING TURBO MACHINE CONFORMABLE SEAL | 2011 |
|
RU2483837C2 |
