FIELD: metallurgy.
SUBSTANCE: invention relates to metallurgy, namely to the production of sealing bedding coatings. Abradable sealing coating for a compressor of a gas turbine engine, obtained by a method for plasma spraying of a powder mixture, contains powder of nickel and nickel-plated graphite. Coating contains from 78 to 88 wt.% of nickel particles and from 12 to 22 wt.% of granular graphite particles, the ratio of length to thickness of which is in the range from 4:1 to 1:1, wherein nickel-plated graphite powder for obtainment of coating has a size of 30-200 mcm.
EFFECT: increase in strength and erosion (gas-abrasive) resistance of coating, while saving its abrasiveness, as well as possibility of application of coating with a thickness of up to 5 mm.
5 cl, 1 tbl
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|
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| POWDER COMPOSITION FOR WEAR-IN SEALING COATING | 2022 |
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| METHOD OF PRODUCING COMPOSITE MATERIAL BASED ON NICKEL AND HEXAGONAL BORON NITRIDE | 2019 |
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RU2706999C1 |
