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

A kind of corrosion-resistant high-strength neutron shielding alloy material and preparation method thereof

An alloy material and high-strength technology, which is applied in the field of high-strength neutron shielding alloy materials and their preparation, can solve problems such as failure to meet the requirements of corrosion resistance and mechanical properties that cannot meet the requirements of nuclear chemical equipment manufacturing, and achieve excellent neutron shielding. performance, improving comprehensive mechanical properties, and the effect of a single phase

Active Publication Date: 2021-07-23
西安稀有金属材料研究院有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, on the one hand, these materials cannot meet the corrosion resistance requirements in strong corrosive environments such as boiling nitric acid. In addition, compared with metals or alloys, they cannot meet the manufacturing requirements of nuclear chemical equipment such as nuclear spent fuel reprocessing in terms of mechanical properties.

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
  • A kind of corrosion-resistant high-strength neutron shielding alloy material and preparation method thereof
  • A kind of corrosion-resistant high-strength neutron shielding alloy material and preparation method thereof
  • A kind of corrosion-resistant high-strength neutron shielding alloy material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The alloy material of this embodiment is composed of the following elements in mass percentage: Hf 50%, the balance is Zr and unavoidable impurities.

[0031] The alloy material preparation method of the present embodiment comprises the following steps:

[0032] Step 1. Mix zirconium sponge and hafnium sponge, and then press to obtain an electrode block, and then conduct vacuum consumable electrode melting on the obtained electrode block to obtain an alloy ingot; the zirconium sponge is in accordance with YS / T 397- 2015 standard industrial-grade zirconium sponge, the hafnium sponge is an industrial-grade hafnium sponge that meets the YS / T399-2013 standard;

[0033] Step 2. Carrying out machining and chamfering the alloy ingot obtained in step 1 in turn, and then performing three-fire secondary forging on the chamfered alloy ingot to obtain a forged alloy ingot; the three-fire secondary forging The conditions are as follows: successively upsetting and drawing three time...

Embodiment 2

[0042] The alloy material of this embodiment is composed of the following elements in mass percentage: Hf 49%, the balance is Zr and unavoidable impurities.

[0043] The alloy material preparation method of the present embodiment comprises the following steps:

[0044] Step 1. Mix zirconium sponge and hafnium sponge, and then press to obtain an electrode block, and then conduct vacuum consumable electrode melting on the obtained electrode block to obtain an alloy ingot; the zirconium sponge is in accordance with YS / T 397- 2015 standard industrial-grade zirconium sponge, the hafnium sponge is an industrial-grade hafnium sponge that meets the YS / T399-2013 standard;

[0045] Step 2. Carrying out machining and chamfering the alloy ingot obtained in step 1 in turn, and then performing three-fire secondary forging on the chamfered alloy ingot to obtain a forged alloy ingot; the three-fire secondary forging The conditions are as follows: upsetting twice at 1000°C, 900°C and 800°C in...

Embodiment 3

[0050] The alloy material of this embodiment is composed of the following elements in mass percentage: Hf 51%, the balance is Zr and unavoidable impurities.

[0051] The alloy material preparation method of the present embodiment comprises the following steps:

[0052] Step 1. Mix zirconium sponge and hafnium sponge, and then press to obtain an electrode block, and then conduct vacuum consumable electrode melting on the obtained electrode block to obtain an alloy ingot; the zirconium sponge is in accordance with YS / T 397- 2015 standard industrial-grade zirconium sponge, the hafnium sponge is an industrial-grade hafnium sponge that meets the YS / T399-2013 standard;

[0053] Step 2. Carrying out machining and chamfering the alloy ingot obtained in step 1 in turn, and then performing three-fire secondary forging on the chamfered alloy ingot to obtain a forged alloy ingot; the three-fire secondary forging The conditions are as follows: successively upsetting and drawing three time...

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
yield strengthaaaaaaaaaa
tensile strengthaaaaaaaaaa
corrosion rateaaaaaaaaaa
Login to View More

Abstract

The invention discloses a corrosion-resistant high-strength neutron shielding alloy material. The alloy material is composed of the following elements in mass percentage: Hf 49%-51%, and the balance is Zr and inevitable impurities; the invention also provides A method for preparing a corrosion-resistant high-strength neutron shielding alloy material, the method mixes sponge zirconium and sponge hafnium, and then performs pressing and vacuum consumable electrode smelting to obtain alloy ingots, and the alloy ingots are sequentially subjected to mechanical Machining and chamfering, and then forging for three times, to obtain a forged alloy ingot, heat treatment of the forged alloy ingot, and then cooling to obtain an alloy material. In the invention, Zr is used as the matrix, Hf is used as the main alloy element, and the alloy material is prepared through vacuum consumable electrode melting and three-fire forging. The prepared alloy material has a single phase, a uniform structure, and has excellent neutron shielding performance and Excellent strength combined with high corrosion resistance and machinability.

Description

technical field [0001] The invention belongs to the technical field of metal materials, and in particular relates to a corrosion-resistant high-strength neutron shielding alloy material and a preparation method thereof. Background technique [0002] The nuclear fuel undergoes nuclear reaction after neutron bombardment in the reactor, and after the burnup depth reaches the unloading standard, it must be unloaded from the reactor and become spent fuel. Spent fuel still contains a large number of unused value-added nuclides, fissile nuclides and other fission products, and has extremely strong radioactivity, which makes it difficult and costly to deal with. Corrosion-resistant materials for nuclear and chemical industries such as nuclear spent fuel reprocessing are the first barrier to prevent corrosive and radioactive substances from entering the environment, and are the basic prerequisite for the safe operation of nuclear and chemical equipment such as reprocessing. [0003]...

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 Patents(China)
IPC IPC(8): C22C16/00C22C27/00C22C1/02C22F1/18C21D1/30B21J5/00
CPCB21J5/002C21D1/30C22C1/02C22C16/00C22C27/00C22F1/18C22F1/186
Inventor 刘承泽吴金平潘晓龙赵彬李欢徐建平吴俊宇张于胜
Owner 西安稀有金属材料研究院有限公司
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