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Method for preparing high-purity nickel-based superalloy through integration of vacuum induction melting and electron beam refining

A technology of vacuum induction melting and nickel-based superalloys, which is applied in the field of preparing high-purity nickel-based superalloys, can solve the problems of high production costs, high inclusion content in ingots, and high scrapping rate in ingots, and achieve low inclusion content and reduced inclusions The effect of high content and purity

Active Publication Date: 2020-12-18
DALIAN UNIV OF TECH
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Problems solved by technology

[0006] According to the current traditional method proposed above, the superalloy is generally prepared by double or triple methods, but the ingot has problems such as high inclusion content and large segregation degree, which lead to technical problems such as high scrap rate of ingot and high production cost. Provides a method for the integrated preparation of high-purity nickel-based superalloys by vacuum induction melting-electron beam refining

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  • Method for preparing high-purity nickel-based superalloy through integration of vacuum induction melting and electron beam refining

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Embodiment Construction

[0045] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0046] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordina...

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Abstract

The invention provides a method for preparing a high-purity nickel-based superalloy through integration of vacuum induction melting and electron beam refining. The method comprises the following stepsof S1, pretreatment of raw materials; S2, charging into a furnace; S3, vacuum induction melting; and S4, electron beam refining, so that the refined alloy is obtained. By coupling vacuum induction melting and electron beam refining, a superalloy mother alloy is melted through a vacuum induction method, then the superalloy is further purified through electron beam refining, the segregation degreeis reduced, the metallurgical quality of a superalloy cast ingot is improved by fully utilizing the advantages of induction melting and electron beam refining, and finally, high-purity preparation ofthe alloy is realized.

Description

technical field [0001] The invention relates to a method for preparing a high-purity nickel-based superalloy through the integration of vacuum induction melting and electron beam refining. Background technique [0002] Nickel-based superalloys are more and more important in aviation, aerospace, energy, chemical and other industrial fields due to their good high-temperature strength, high-temperature creep properties, excellent oxidation resistance, high-temperature fatigue properties, and good long-term structural stability. ,widely. [0003] At present, the traditional smelting methods of nickel-based superalloys include vacuum induction melting plus arc remelting, vacuum induction melting plus electroslag remelting and other dual processes, vacuum induction melting plus electroslag remelting plus arc remelting, vacuum induction melting plus vacuum arc Triple process such as remelting plus electroslag remelting, plasma remelting, powder metallurgy, electron beam rapid prot...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/03C22B9/22C22C19/03
CPCC22B9/228C22C1/023C22C1/03C22C19/03Y02P10/25
Inventor 谭毅庄辛鹏李鹏廷游小刚赵龙海崔弘阳王登科
Owner DALIAN UNIV OF TECH
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