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

Stainless steel hydrogen permeation barrier composite membrane and preparation method thereof

A composite membrane and stainless steel technology, applied in the field of materials, can solve the problems of hindering hydrogen permeation membrane layer, less patents, less membrane component content and less preparation methods, etc., achieves great application value, easy realization, and simple preparation method easy effect

Inactive Publication Date: 2016-01-13
JIANGSU UNIV OF SCI & TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current research basically focuses on the effect of hydrogen permeation on the properties of metal materials; there are not many related research reports on the film layer that hinders hydrogen permeation, the component content of the film layer and its preparation method, and there are few related patents

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
  • Stainless steel hydrogen permeation barrier composite membrane and preparation method thereof
  • Stainless steel hydrogen permeation barrier composite membrane and preparation method thereof
  • Stainless steel hydrogen permeation barrier composite membrane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: 2205 stainless steel is used as the substrate, and a CrAlMoN hydrogen permeation barrier film is deposited on the surface.

[0029] The specific production process is as follows:

[0030] A. Clean the surface of the stainless steel substrate;

[0031] B. Then when the vacuum degree is greater than 10 -6 Under the condition of Pa, using the multi-target magnetron sputtering method, a Cr target, an Al target, and a Mo target are used, and the rotation speed of the base is controlled at 0.5 revolutions per minute, and a composite film is deposited on the rotating stainless steel substrate at one time. The target power is 150W for Cr target, 300W for Al target and 150W for Mo target. Ar 2 is the sputtering gas, Ar 2 The flow rate is 200cm 3 / s, Ar 2 The partial pressure is 0.5Pa, and the reaction gas is N 2 . After testing, the weight percentage content of each component of the composite film is 0.4% of Cr, 3.6% of Al, 0.5% of Mo, and the rest is N, and t...

Embodiment 2

[0037] Example 2: 2205 stainless steel is used as the substrate, and a CrAlMoN hydrogen permeation barrier film is deposited on the surface.

[0038] The specific production process is as follows:

[0039] A. Clean the surface of the stainless steel substrate

[0040] B. Then when the vacuum degree is greater than 10 -6 Under the condition of Pa, using the multi-target magnetron sputtering method, a Cr target, an Al target, and a Mo target are used, and the rotation speed of the base is controlled at 1 revolution per minute, and a composite film is deposited on the rotating stainless steel substrate at one time. The target power is 180W for Cr target, 400W for Al target and 160W for Mo target. Ar 2 is the sputtering gas, Ar 2 The flow rate is 250cm 3 / s, Ar 2 The partial pressure is 0.9Pa, and the reaction gas is N 2 . The thickness of the prepared CrAlMoN film is 8um. After testing, the weight percentage content of each component of the composite film is Cr0.8%, Al6.5...

Embodiment 3

[0046] Example 3: 2205 stainless steel is used as the substrate, and a CrAlMoN hydrogen permeation barrier film is deposited on the surface.

[0047] The specific production process is as follows:

[0048] A. Clean the surface of the stainless steel substrate

[0049] B. Then when the vacuum degree is greater than 10 -6 Under the condition of Pa, using the multi-target magnetron sputtering method, a Cr target, an Al target, and a Mo target are used, and the rotation speed of the base is controlled at 2 revolutions per minute, and a composite film is deposited on the rotating stainless steel substrate at one time. The target power is 200W for Cr target, 500W for Al target and 200W for Mo target. Ar 2 is the sputtering gas, Ar 2 The flow rate is 300cm 3 / s, Ar 2 The partial pressure is 1.8Pa, and the reaction gas is N 2 . After testing, the thickness of the prepared CrAlMoN film is 5um, and the weight percentage content of each component of the composite film is Cr0.8%, ...

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

No PUM Login to View More

Abstract

The invention discloses a stainless steel hydrogen-permeation-barrier composite film and a preparation method thereof. The composite film comprises a stainless steel matrix and a CrAlMoN composite film positioned on the matrix, wherein the CrAlMoN composite film comprises the following components in percentage by weight: 0.4-1.2% of Cr, 3.5-9.5% of Al, 0.5-1.4% of Mo and the balance of N. The composite film preparation method is a multi-target magnetron sputtering method. The hydrogen-permeation-barrier composite film is formed on the stainless steel surface in situ, and has great application value in the aspects of lowering hydrogen permeability and reducing or even preventing hydrogen brittleness of stainless steel; and besides, the preparation method is simple and easy to implement.

Description

technical field [0001] The invention relates to a composite membrane and a preparation method thereof, in particular to a stainless steel hydrogen permeation barrier composite membrane and a preparation method thereof, belonging to the field of material technology. Background technique [0002] Hydrogen embrittlement (hydrogen embrittlement) refers to the serious degradation of mechanical properties of metal materials due to hydrogen absorption or hydrogen permeation during the process of smelting, processing, heat treatment, pickling, and electroplating, or when they are used in hydrogen-containing media for a long time. break phenomenon. Hydrogen embrittlement is not only found in ordinary steel, but also in stainless steel, aluminum alloys, titanium alloys, nickel-based alloys and zirconium alloys. From the perspective of mechanical properties, hydrogen embrittlement has the following manifestations: hydrogen has little effect on the yield strength and ultimate strength ...

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): C23C14/16C23C14/35
Inventor 郑传波唐祝君益帼申小兰李春岭
Owner JIANGSU UNIV OF SCI & 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