FIELD: nonferrous metallurgy.
SUBSTANCE: invention relates to casting intermetallide alloys based on Ni3Al and to articles fabricated via precision casting process using consumable patterns having polycrystalline structure. These articles can be nozzle blades, nozzle apparatus spacers, large-size shutters, and other parts of gas turbine engines in aircraft and automobile industries. Ni3Al-based alloy is composed of, wt %: Al 8.0-9.0, Cr 4.5-6.5, W 2.0-4.2, Mo 2.5-4.5, Ti 1.0-2.0, C 0.10-0.18, Hf 0.40-0.60, Ni - the rest. Alloy is characterized by elevated short-time strength at 1200-1250°C, heat resistance at 1200°C, and working temperatures.
EFFECT: increased temperature of gas before turbine, performance of articles, and prolonged lifetime thereof.
4 cl, 2 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| ALLOY ON BASIS OF INTERMETALLIC COMPOUND NiAl AND PRODUCT, MADE OF IT | 2007 |
|
RU2349662C1 |
| HEAT-RESISTANT ALLOY BASED ON INTERMETALLIDE NiAl AND ARTICLE MADE OF THEREOF | 2004 |
|
RU2256714C1 |
| NiAl INTERMETALLIC COMPOUND BASED ALLOY | 2009 |
|
RU2405851C1 |
| INTERMETALLIC NiAl-BASED ALLOY AND PRODUCT MADE FROM THE SAME | 2003 |
|
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| INTERMETALLIC NiAl -BASED ALLOY AND PRODUCT MADE FROM THE SAME | 2003 |
|
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| ALLOY ON BASE OF INTER-METALLIDE NiAl | 2009 |
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| NiAl INTERMETALLIDE-BASED ALLOY AND ARTICLES MADE THEREOF | 2014 |
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RU2569283C1 |
| CASTING ALLOY BASED ON INTERMETALLIC COMPOUND Ni3Al, AND ARTICLE OUT OF IT | 2015 |
|
RU2610577C1 |
| ALLOY ON BASE OF INTER-METALLIDE OF NICKEL | 2009 |
|
RU2389816C1 |
| ALLOY BASED ON INTERMETALLIC COMPOUND NiAl AND PRODUCT MANUFACTURED FROM THE SAME | 2006 |
|
RU2308499C1 |
