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Nickel-based powder superalloy and preparation method and application thereof

A high-temperature alloy and nickel-based powder technology, applied in the field of powder superalloy, can solve the problems of low service temperature and poor high-temperature creep performance, and achieve the effect of excellent high-temperature strength and high creep strength

Active Publication Date: 2022-04-01
BEIJING CISRI GAONA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] An object of the present invention is to provide a nickel-based powder superalloy to solve the problem that the powder superalloy in the prior art has high temperature strength but poor high temperature creep performance, or has good creep performance but low service temperature Technical problem; the nickel-based powder superalloy of the present invention has both high temperature strength and high creep strength

Method used

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  • Nickel-based powder superalloy and preparation method and application thereof
  • Nickel-based powder superalloy and preparation method and application thereof
  • Nickel-based powder superalloy and preparation method and application thereof

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preparation example Construction

[0056] According to one aspect of the present invention, the present invention relates to the preparation method of described nickel-base powder superalloy, comprises the following steps:

[0057] The raw materials are prepared according to the chemical composition and mass percentage of the nickel-based powder superalloy, the master alloy rod is prepared by vacuum induction melting process, the master alloy rod is prepared into alloy powder, and the alloy powder is subjected to hot isopressing forming treatment, obtaining an ingot, and performing heat treatment on the ingot;

[0058] The heat treatment sequentially includes solid solution salt quenching, stabilization treatment and aging treatment.

[0059] The preparation method of the nickel-based powder superalloy of the present invention is simple and easy, and the nickel-based powder superalloy with both excellent high-temperature strength and high creep strength can be obtained through cooperation of various steps.

[...

Embodiment 1

[0081] A nickel-based powder superalloy comprising the following chemical components in mass percent:

[0082] C 0.035%, Cr 10.5%, Ta 0.9%, Co 15.0%, W 6.1%, Mo 2.8%, Nb 1.8%, Al 3.7%, Ti 3.9%, Zr 0.1%, B 0.03%, and the balance is Ni.

[0083] The preparation method of the above-mentioned nickel-based powder superalloy comprises the following steps:

[0084] According to the chemical composition and mass percentage of nickel-based powder superalloy, the raw materials are prepared, the master alloy rod is prepared by vacuum induction melting process, and the master alloy rod is prepared into alloy powder by argon atomization, and the alloy powder is prepared. Carrying out hot isopressing forming treatment to obtain an ingot, and performing heat treatment on the ingot;

[0085] The heat treatment sequentially includes solid solution salt quenching, stabilization treatment and aging treatment;

[0086]The solid solution salt quenching includes solid solution and salt quenching;...

Embodiment 2

[0092] A nickel-based powder superalloy, the chemical composition of which is the same as in Example 1.

[0093] The preparation method of nickel-based powder superalloy, except that the solid solution is near solid solution, and the temperature is 1180 ° C, other conditions are the same as in Example 1.

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Abstract

The invention relates to the technical field of powder superalloys, in particular to a nickel-based powder superalloy and a preparation method and application thereof. The nickel-based powder high-temperature alloy comprises the following chemical components in percentage by mass: 0.025% to 0.045% of C, 10.0% to 11.0% of Cr, 0.7% to 1.1% of Ta, 14.55% to 15.5% of Co, 5.9% to 6.3% of W, 2.6% to 3.0% of Mo, 1.6% to 2.0% of Nb, 3.55% to 3.9% of Al, 3.7% to 4.1% of Ti, 0.08% to 0.12% of Zr, 0.025% to 0.035% of B and the balance of Ni. The nickel-based powder high-temperature alloy has excellent high-temperature strength and high creep strength.

Description

technical field [0001] The invention relates to the technical field of powder superalloys, in particular to a nickel-based powder superalloy and its preparation method and application. Background technique [0002] As an important hot-end part of a high thrust-to-weight ratio engine, the powder superalloy has harsh working conditions and a complex working environment. It is required to have high temperature strength, good high temperature creep performance and high damage tolerance. Existing powder superalloys either have high temperature strength but poor high temperature creep performance, or have good creep performance but low service temperature. Therefore, how to obtain powder superalloys with high temperature strength and high temperature creep properties is very important. [0003] In view of this, the present invention is proposed. Contents of the invention [0004] An object of the present invention is to provide a nickel-based powder superalloy to solve the pro...

Claims

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Application Information

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IPC IPC(8): C22C19/05B22F3/15B22F3/24C22F1/10B22F3/20B22F3/17B22F9/08
CPCY02P10/25
Inventor 闫婷冀红艳贾建荣昆刘明东陶宇
Owner BEIJING CISRI GAONA TECH