Nickel base alloy, preparation method of nickel base alloy and manufactured goods
A technology of nickel-based alloys and articles, which is applied in the direction of mechanical equipment, engine components, machines/engines, etc., and can solve the problems of low creep strength at high temperatures
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[0079] The application also provides a method for preparing a nickel-based alloy, comprising the following steps:
[0080] A) preparing nickel-based master alloy ingot according to the composition ratio of the above-mentioned nickel-based alloy;
[0081] B) remelting the nickel-based master alloy ingot, and then preparing nickel-based alloy castings;
[0082] C) performing heat treatment on the nickel-based alloy casting to obtain a nickel-based alloy.
[0083]In the above nickel-based alloy preparation method, the specific composition of the nickel-based master alloy ingot has been described in detail above, and will not be repeated here.
[0084] In the above-mentioned process of preparing nickel-based alloys, the method for preparing nickel-based master alloy ingots is carried out according to methods well known to those skilled in the art. For example, the present application puts the raw materials into a vacuum melting furnace for melting according to the composition rat...
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[0098] The nickel-based high-temperature alloy of the present application achieves a good balance in terms of alloy density, alloy cost, structure stability, high-temperature strength, etc., and has excellent comprehensive performance. In order to further illustrate the effect of the present application, the present application lists 7 specific examples, and compares 6 of them with 5 existing alloys. 7 embodiment alloy composition and 5 kinds of existing alloy composition are as shown in table 1; In embodiment, the preparation method of described nickel-based superalloy is specifically:
[0099] 1) put the raw materials according to the composition ratio shown in Table 1 into a vacuum induction melting furnace to melt the alloy, and prepare a master alloy ingot;
[0100] 2) Remelting the master alloy ingot in a vacuum device, and then preparing a columnar crystal casting by directional solidification in a mold shell formed by a refractory material, or preparing a single crysta...
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