Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Large-size gradient-aluminum-content iron-chromium-aluminum ODS (oxide dispersion strengthened) alloy sheet material, and preparation method and application thereof

A technology of sheet material and aluminum content, applied in metal material coating process, chemical instruments and methods, metal layered products, etc. The effect of good oxidation resistance, simple process and low process cost

Active Publication Date: 2014-08-06
HARBIN INST OF TECH
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the oxidation resistance and weldability of the metal honeycomb structure laminates in the existing thermal protection system cannot be balanced, and to provide a large-scale gradient aluminum content iron-chromium-aluminum ODS alloy thin plate material, preparation method and application

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
  • Large-size gradient-aluminum-content iron-chromium-aluminum ODS (oxide dispersion strengthened) alloy sheet material, and preparation method and application thereof
  • Large-size gradient-aluminum-content iron-chromium-aluminum ODS (oxide dispersion strengthened) alloy sheet material, and preparation method and application thereof
  • Large-size gradient-aluminum-content iron-chromium-aluminum ODS (oxide dispersion strengthened) alloy sheet material, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0023] Specific Embodiment 1: In this embodiment, the large-size gradient aluminum content iron-chromium-aluminum ODS alloy thin plate material has a thickness of 10-300um and a diameter of 1000mm, and the content of one side of the thin plate is 15.0%-40.0%Cr, 10.0%-30.0% by weight. %Al, 0.3%-0.6%Y 2 o 3 And the composition of the balance amount of Fe, the other side is composed of 15.0%-40.0%Cr, 0%-5.0%Al, 0.3%-0.6%Y by weight 2 o 3 And the composition of Fe in balance.

specific Embodiment approach 2

[0024] Specific embodiment two: the preparation method of the large-scale gradient aluminum content iron-chromium-aluminum ODS alloy thin plate material described in specific embodiment one is carried out according to the following steps:

[0025] 1. Put the aluminum-containing ingot into a water-cooled copper crucible, place 35 grams of tungsten on the surface of the aluminum-containing ingot, put the yttrium oxide ceramic column or yttrium oxide powder into another water-cooled copper crucible, and place on the surface of the yttrium oxide ingot 10-15 grams of calcium fluoride, put the superalloy substrate on the substrate frame, wipe the surface with absolute ethanol, and evacuate to 1×10 -3 Pa-5×10 -3 Pa, then heat the superalloy substrate to 650-1000°C and keep it warm;

[0026] 2. Cover the superalloy substrate treated in step 1 with a baffle, increase the current of the two electron beams to 1.6-3A and 1.0-1.5A respectively, and stabilize it for 1-20min, open the baffl...

specific Embodiment approach 3

[0031] Specific embodiment three: the difference between this embodiment and specific embodiment two is that in step one, the vacuum is pumped to 3×10 -3 Pa. Others are the same as in the second embodiment.

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
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a large-size gradient-aluminum-content iron-chromium-aluminum ODS (oxide dispersion strengthened) alloy sheet material, and a preparation method and application thereof, and aims to solve the problem of incapability of compromising oxidation resistance and weldability in the existing thermal protection system metal cellular-structure veneer sheet. The thickness of the material is 10-300 mu m, and the diameter is 1000mm; one side of the sheet is composed of Cr, Al, Y2O3 and the balance of Fe; and the other side is composed of Cr, Al, Y2O3 and the balance of Fe. The method comprises the following steps: putting an aluminiferous ingot into a water-cooled copper crucible, putting a yttrium oxide ceramic column or yttrium oxide powder into another water-cooled copper crucible, heating a high-temperature alloy substrate to 650-1000 DEG C, and keeping the temperature; and evaporating the aluminiferous ingot and yttrium oxide ceramic ingot or yttrium oxide powder, and naturally cooling to 50 DEG C. The material has favorable oxidation resistance, one side is oxidation-resistant, and the other side is easy for welding. The method belongs to the field of preparation of a metal cellular-structure upper / lower veneer sheet material for a thermal protection system.

Description

technical field [0001] The invention relates to a thin plate material and its preparation method and application. Background technique [0002] During the process of re-entering the atmosphere, the surface of the spacecraft rubbed against the air to generate high temperatures, and it was also tested by tiny meteorites, ultra-high-speed impacts from space debris, and corrosion by rainwater in the near-Earth atmosphere. The thermal protection system can minimize the heat entering the interior of the spacecraft, so that the spacecraft fuselage and internal components can work within a reasonable temperature range, so it is an important part of the spacecraft. A metal alloy cover including a honeycomb body, an upper plate, a lower plate, a phase change material, an outer shell, and a ceramic plate is proposed in the patent “Cover plate combined with metal honeycomb structure and ceramics for thermal protection system” (Patent No. 101791880B) Plates for thermal protection system...

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): C22C38/18C22C30/00C23C14/30C23C14/06C23C14/08C23C14/16B32B3/12B32B15/04B32B9/04B32B18/00
Inventor 李明伟林秀宋广平孙跃赫晓东赵轶杰钟业盛
Owner HARBIN INST OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com