FIELD: metallurgy.
SUBSTANCE: proposed refractory nickel based alloy comprises the following components in wt %: carbon 0.02-0.13; chrome 15.6-16.2; cobalt 8.2-8.8; tungsten 2.4-2.8; molybdenum 1.5-2.0; aluminium 3.3-3.7; titanium 3.3-3.7; niobium 0.6-1.1; boron 0.005-0.015; tantalum 1.5-2.0, hafnium 0.00-0.2; zirconium 0.03-0.08; calcium 0.00-0.02; manganese ≤0.02; copper 0.00-0.05; sulphur ≤0.005; phosphorus ≤0.005; nitrogen 10-20 ppm; oxygen 10-15 ppm, at least two elements chosen from the following group: silicon ≤0.25; magnesium 0.00-0.02; iron ≤0.2; nickel - rest.
EFFECT: alloy is characterised by high characteristics of long-term strength in combination with high oxidation ands corrosion resistance, improved structural homogeneity.
2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
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| REFRACTORY NICKEL-BASED ALLOY FOR CASTING GAS TURBINE WORKING BLADES | 2013 |
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| HEAT-RESISTANT ALLOY BASED ON NICKEL FOR MANUFACTURE OF BLADES OF GAS-TURBINE UNITS AND METHOD OF ITS HEAT TREATMENT | 2014 |
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