High-oxidation-resistance lanthanide nickel base superalloy and preparation method and application thereof
A technology of nickel-based superalloy and superalloy, which is applied in the field of lanthanide nickel-based superalloy with high oxidation resistance and its preparation, can solve the problem of affecting the high-temperature oxidation resistance of the alloy, the mechanical properties of the nickel-based alloy are not sufficiently strengthened, and the high temperature The problem of poor oxidation resistance, etc., to achieve excellent high temperature oxidation resistance, excellent high temperature oxidation resistance and mechanical strength, the effect of strengthening mechanical properties
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[0030] Example 1
[0031] A lanthanide nickel-based superalloy material, in terms of weight percentage, its elemental composition includes: C 0.08%, Cr9.55%, Mo 3.95%, Co 6.10%, La 2.21%, Al 1.65%, Nb 0.6%, Fe 4.5%, Mn 1.12%, and the balance is Ni and unavoidable impurities.
[0032] The preparation method of the above-mentioned superalloy material is as follows:
[0033] (1) Weigh the smelting raw materials containing the above elements according to the ratio of each element, add the raw materials to the smelting furnace, and perform primary smelting in a 68Pa vacuum atmosphere. The primary smelting temperature is 1380°C, and the primary smelting melting rate is 1.8kg / min. Get molten steel
[0034] (2) When the raw material in step (1) is melted by more than 60%, increase the temperature of the melting furnace to 1540°C, and reduce the pressure to 4Pa vacuum atmosphere for secondary smelting. The time for secondary smelting is 46 minutes, and then The molten steel is poured into a ...
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[0040] Example 2
[0041] A lanthanide nickel-based superalloy material, in terms of weight percentage, its element composition includes: C 0.12%, Cr 14.35%, Mo 5.15%, Co 7.20%, Ce 3.33%, Al 1.85%, Nb 1.4%, Fe 7.3%, Mn 1.35%, and the balance is Ni and unavoidable impurities.
[0042] The preparation method of the above-mentioned superalloy material is as follows:
[0043] (1) Weigh the smelting raw materials containing the above elements according to the ratio of each element, add the raw materials to the smelting furnace, and perform primary smelting in a vacuum atmosphere of 72 Pa. The primary smelting temperature is 1420°C, and the primary smelting speed is 2.5 kg / min. Get molten steel
[0044] (2) When the raw materials in step (1) are melted by more than 60%, increase the temperature of the melting furnace to 1560°C, and reduce the pressure to 7Pa vacuum atmosphere for secondary smelting. The secondary smelting time is 68 minutes, and then The molten steel is poured into a cons...
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[0050] Example 3
[0051] A lanthanide nickel-based superalloy material, in terms of weight percentage, its element composition includes: C 0.09%, Cr 12.45%, Mo 4.25%, Co 6.58%, lanthanide 2.86%, Al 1.75%, Nb 1.20% , Fe 6.1%, Mn 1.24%, and the balance is Ni and unavoidable impurities.
[0052] The preparation method of the above-mentioned superalloy material is as follows:
[0053] (1) Weigh the smelting raw materials containing the above elements according to the ratio of each element, add the raw materials to the smelting furnace, and perform primary smelting in a vacuum atmosphere of 70 Pa. The primary smelting temperature is 1398°C, and the primary smelting speed is 2.1 kg / min. Get molten steel
[0054] (2) When the raw material in step (1) is melted by more than 60%, increase the temperature of the melting furnace to 1552°C, and perform secondary smelting in a vacuum atmosphere of 5Pa. The secondary smelting time is 55 minutes, and then the molten steel Poured into a consumable...
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