| 简介 |
FIELD : metallurgy.
SUBSTANCE : invention relates to metallurgy, namely to nickel-based alloys, and can be used in gas transfer, power and offshore gas turbine plants (GTP) with long operating time, in particular for casting of cooled working and nozzle blades with equiaxial structure. Cast nickel alloy for casting of cooled working and nozzle blades with equiaxial structure of gas-turbine plants contains, wt. % : C 0.08–0.18; Cr 10.0–16.0; Co 10.0–16.0; W 2.0–10.0; Ti 2.0–5.5; Al 2.0–5.5; Re 1.2–3.6; Ta 4.0–9.0; Hf 0.05–2.0; B 0.005–0.5; Zr 0.005–0.05; Ce 0.005–0.5; La 0.005–0.5; Y 0.01–0.5; Mg 0.005–0.3; Mn 0.05–0.5; Si 0.05–0.5; Ca 0.02–0.2; Ni – rest.
EFFECT : alloy is characterized by high values of resistance to sea salt corrosion, heat resistance, as well as high manufacturability and output of suitable products, significantly lower labour input in production and cost.
1 cl, 1 dwg, 2 tbl |
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