High-quality nickel-chromium-iron-based high-temperature alloy plate and preparation method thereof

A technology of iron-based superalloys and superalloys, applied in metal rolling, manufacturing tools, heat treatment equipment, etc., can solve problems such as poor surface quality, difficulty in meeting design and use requirements, low dimensional accuracy, etc., and achieve good uniformity of structure and performance Effect

Active Publication Date: 2022-05-27
BEIJING CISRI GAONA TECH +3
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the GH4169 alloy plate generally has the problems of low dimensional accuracy and poor surface quality, and it is difficult to meet the design and use requirements

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-quality nickel-chromium-iron-based high-temperature alloy plate and preparation method thereof
  • High-quality nickel-chromium-iron-based high-temperature alloy plate and preparation method thereof
  • High-quality nickel-chromium-iron-based high-temperature alloy plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0046] The present application provides a method for preparing a high-quality nickel-chromium-iron-based superalloy sheet, which specifically includes the following steps: slab preparation, cold rolling, solution treatment of finished products, and surface treatment;

[0047] Wherein, cold rolling: cold-rolling the prepared slab to obtain a cold-rolled sheet; the cold-rolling includes intermediate-fire sub-cold rolling and final-fire sub-cold rolling; in each sub-fire cold rolling, the cold rolling deformation of each pass Distribute the deformation amount of the fire evenly;

[0048] The calculation method of sheet thickness after cold rolling for each fire is as follows:

[0049]

[0050] Among them, δn represents the thickness after the nth cold rolling of the fire; δ 0 Represents the initial thickness of the sheet before the cold rolling of the fire; n is the number of the fire of the fire; D is the deformation of the fire; P is the number of cold rolling passes per fi...

Embodiment 1

[0081] This embodiment provides a high-quality nickel-chromium-iron-based superalloy plate.

[0082] This high quality nickel-chromium-iron based superalloy sheet contains the following compositions: C 0.012%, Si 0.08%, Mn 0.021%, Cr 18.0%, Ni 54.0%, Mo 3.0%, Nb 5.1%, Ti 0.98%, Al 0.49%, Co 0.15%, Cu 0.02%, P 0.0065%, S 0.0005%, O 0.0006%, N 0.0070%, B 0.003%, Mg 0.0005%, Ta≤0.05%, and the balance is Fe.

[0083] The preparation method of the high-quality nickel-chromium-iron-based superalloy plate specifically includes the following steps:

[0084] 1. Vacuum induction melting: The raw materials are smelted and poured into ingot A in a vacuum induction melting furnace.

[0085] 2. Remelting: The ingot A obtained in step 1 is subjected to vacuum self-consumption remelting to obtain the ingot B.

[0086] 3. Homogenization heat treatment

[0087] The ingot B obtained in step 2 is subjected to homogenization heat treatment, and the ingot after the homogenization heat treatment ...

Embodiment 2

[0114] This embodiment provides a high-quality nickel-chromium-iron-based superalloy plate.

[0115] This high quality nickel-chromium-iron based superalloy sheet contains the following compositions: C 0.025%, Si 0.06 / %, Mn 0.018%, Cr 18.9%, Ni 53.65%, Mo 2.99%, Nb 5.09%, Ti 1.02%, Al 0.59%, Co 0.11%, Cu 0.02%, P 0.0059%, S 0.0004%, O 0.0005%, N 0.0068%, B 0.0030%, Mg 0.0004%, Ta < 0.05%, and the balance is Fe.

[0116] The preparation method of the high-quality nickel-chromium-iron-based superalloy plate specifically includes the following steps:

[0117] 1. Vacuum induction melting: The raw materials are smelted and poured into ingot A in a vacuum induction melting furnace.

[0118] 2. Remelting: The ingot A obtained in step 1 is subjected to vacuum self-consumption remelting to obtain the ingot B.

[0119] 3. Homogenization heat treatment

[0120] The ingot B obtained in step 2 is subjected to homogenization heat treatment, and the ingot after the homogenization heat tre...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
widthaaaaaaaaaa
lengthaaaaaaaaaa
Login to view more

Abstract

The invention relates to the technical field of high-temperature alloy materials, and particularly discloses a high-quality nickel-chromium-iron-based high-temperature alloy plate and a preparation method thereof. The preparation method of the high-temperature alloy plate comprises the following steps of preparation of a plate blank, cold rolling, solution treatment of a finished product and surface treatment. Wherein cold rolling is conducted, specifically, a prepared plate blank is subjected to cold rolling, and a cold-rolled plate is obtained; solution treatment is conducted on a finished product, specifically, the cold-rolled plate is subjected to solution treatment, and the plate subjected to solution treatment is obtained; surface treatment: carrying out acid and alkali washing and surface oil grinding on the plate subjected to solution treatment to obtain a surface-treated plate; the surface oil grinding mode is single-face grinding; and controlling the total thickness reduction of the plate after surface treatment to be less than or equal to 1% of the thickness of the cold-rolled plate. The high-temperature alloy plate prepared by the preparation method provided by the invention has high thickness precision and high surface quality at the same time.

Description

technical field [0001] The present application relates to the technical field of superalloy materials, and more particularly, to a high-quality nickel-chromium-iron-based superalloy sheet and a preparation method thereof. Background technique [0002] GH4169 alloy is a nickel-chromium-iron-based age-strengthened deformed superalloy. The alloy has high strength, plasticity, good corrosion resistance, oxidation resistance, fatigue resistance, excellent fracture toughness, and radiation resistance properties below 650 ℃. At the same time, GH4169 alloy also has good processing performance and excellent welding performance specialty. [0003] GH4169 alloy was mainly used in the turbine disk of aero-engine in the early days. In recent years, products such as plates, strips, rods, and wires made of this alloy have been widely used in various fields. At present, GH4169 alloy has been widely used as a key material in the fields of aviation, aerospace, nuclear energy, petroleum and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C22F1/10C21D9/46C22C19/05B21B3/02
CPCC22F1/10C21D9/46C22C19/055B21B3/02Y02T50/60
Inventor 石照夏胥国华刘宁田伟赵宝杰伏宇邹善仁韩光炜
Owner BEIJING CISRI GAONA TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap