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Method for Determining Homogenization/Solution Heat Treatment System of Nickel-based Single Crystal Superalloy

A solution heat treatment and superalloy technology, applied in the design of other single crystal superalloy solution heat treatment systems, to determine the homogenization/solution heat treatment system field of nickel-based single crystal superalloys, which can solve the problem of severe dendrite segregation and high melting point Problems such as high element content and poor solution heat treatment effect can achieve the effect of improving diffusion efficiency

Active Publication Date: 2021-10-15
AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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Problems solved by technology

[0014] The purpose of the present invention is to provide a method for determining the homogenization / solution heat treatment system of nickel-based single crystal superalloys. The problem of poor solution heat treatment caused by severe segregation, narrow solution heat treatment window, and difficulty in homogenization

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  • Method for Determining Homogenization/Solution Heat Treatment System of Nickel-based Single Crystal Superalloy
  • Method for Determining Homogenization/Solution Heat Treatment System of Nickel-based Single Crystal Superalloy
  • Method for Determining Homogenization/Solution Heat Treatment System of Nickel-based Single Crystal Superalloy

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[0079] 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 described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0080] The features of various aspects of the embodiments of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that the present invention ...

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Abstract

The invention belongs to the technical field of nickel-based single crystal superalloy preparation, and relates to a method for determining the homogenization / solution heat treatment system of nickel-based single crystal superalloy. Determination of heat treatment temperature for homogenization / solution heat treatment, determination of intermediate level homogenization / solution heat treatment temperature and determination of homogenization / solution heat treatment system. Using the method of the present invention, the alloy can be homogenized / solution heat treated at higher than the as-cast incipient melting temperature without producing incipient melting defects; In the homogenization / solution heat treatment cycle, a better homogenization effect can be obtained without incipient melting defects, thereby effectively solving the serious element dendrite segregation caused by the high content of high melting point elements, the small homogenization / solution heat treatment window, Homogenization is difficult and other problems.

Description

technical field [0001] The invention belongs to the technical field of nickel-based single crystal superalloy preparation, and relates to a method for determining a nickel-based single crystal superalloy homogenization / solid solution heat treatment system, which is suitable for containing (mass percentage) 4-8% Re, 0-7% Ru nickel-based single crystal superalloys can also be used in the design of solution heat treatment systems for other single crystal superalloys. Background technique [0002] In order to develop higher performance aero-engines, the temperature before the engine turbine continues to increase. Therefore, advanced aero-engine turbine blades must work under conditions of high temperature, high load, high speed, complex stress, and gas corrosion, and the service environment is extremely harsh. Due to its excellent comprehensive properties, single crystal superalloys are currently the preferred materials for high-performance aero-engine turbine blades. In order...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22F1/10C30B33/02C30B29/52G01N25/00
CPCC22F1/10C30B29/52C30B33/02G01N25/00
Inventor 岳晓岱李嘉荣刘世忠
Owner AVIC BEIJING INST OF AERONAUTICAL MATERIALS
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