Laser inducement nano-surface preparation method for iron based amorphous nanocrystalline soft magnetic material

A nanocrystalline soft magnetic, laser-induced technology, applied in the field of materials, can solve the problems of high crystalline brittleness, large particle size, complex process, etc. Effect

Inactive Publication Date: 2009-08-19
XINGKE MEDIUM & SMALL ENTERPRISES SERVICE CENT OF NORTHEASTERN UNIV
View PDF1 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantages of the annealing process are: the process is relatively complicated, and the entire amorphous strip material must undergo annealing heat treatment during the heat preservation process of the annealing process, forming a very high crystallization brittleness problem that is difficult to solve and affects the practical application of the material; at the same time , the annealed and crystallized precipitates have a larger particle size, and in addition to the formation of α-Fe(Si) crystal phase, there is also the formation of Fe-B phase that is harmful to magnetic 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
  • Laser inducement nano-surface preparation method for iron based amorphous nanocrystalline soft magnetic material
  • Laser inducement nano-surface preparation method for iron based amorphous nanocrystalline soft magnetic material
  • Laser inducement nano-surface preparation method for iron based amorphous nanocrystalline soft magnetic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Using amorphous band Fe 73.5 Cu 1 Nb 3 Si 13.5 B 9 Alloy, the width of the alloy is 20mm, the thickness is 30μm, and the length is 2000mm.

[0038] Clean the surface of the amorphous tape with absolute ethanol until the surface is clean, and blow dry or air-dry naturally until the surface is dry. Put the amorphous strip flat on the sample support platform, with the touch roller facing up so that the amorphous strip is in close contact with the support.

[0039] The laser is a YAG pulsed laser. The laser process parameters are selected as follows: the current intensity of the laser is 120A, the frequency is 30Hz, the spot size is 8mm, the scanning speed is 8mm / s, the overlap rate is 0%, the wavelength λ=1.064μm, and the scanning direction is along the length of the amorphous strip direction. When scanning the laser surface nanometerization, nitrogen blowing protection is carried out simultaneously.

[0040] Start the laser, select laser pulse widths of 0.4, 0.5, ...

Embodiment 2

[0042] Using amorphous band Fe 75 Si 2 B 16 Ni 4 Mo 3 Alloy, the width of the alloy is 20mm, the thickness is 30μm, and the length is 2000mm.

[0043] Clean the surface of the amorphous tape with absolute ethanol until the surface is clean, and blow dry or air-dry naturally until the surface is dry. Put the amorphous strip flat on the sample support platform, with the touch roller facing up so that the amorphous strip is in close contact with the support.

[0044] The laser is a YAG pulsed laser. The selected laser process parameters are: laser frequency f = 30HZ, wavelength λ = 1.064 μm, spot diameter d = 10mm, pulse width = 0.5ms, current I = 150A; laser scanning speed from 20mm / s, 17.5mm / s, 15mm / s, 12.5mm / s speed to scan once, the overlap rate is 1%, and the scanning direction is along the length direction of the amorphous strip. When scanning the laser surface nanometerization, nitrogen blowing protection is carried out simultaneously. After the surface nanometeriz...

Embodiment 3

[0046] Using amorphous band Fe 75 Si 2 B 16 Ni 4 Mo 3 Alloy, the width of the alloy is 20mm, the thickness is 30μm, and the length is 2000mm.

[0047] Clean the surface of the amorphous tape with absolute ethanol until the surface is clean, and blow dry or air-dry naturally until the surface is dry. Put the amorphous strip flat on the sample support platform, with the touch roller facing up and make the amorphous strip closely contact with the support.

[0048]Nd:YAG pulsed laser is used, and the selected laser process parameters are: current I=105A, frequency f=30HZ, wavelength λ=1.064μm, spot diameter d=10mm, scanning speed v=10mm / s and other fixed parameters. Under the condition of a pulse width of 0.6 ms, when the laser surface is scanned for nanometerization, argon blowing protection is performed simultaneously, the laser overlap rate is 0.5%, and the scanning direction is along the length of the amorphous crystal. Amorphous band Fe after scanning 78 Si 9 B 13 α-...

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to view more

Abstract

The invention relates to a nano-preparation method of laser-induced surface of iron-based amorphous and nano-crystalline soft magnetic material, belonging to the field of material technology. The method comprises the following steps: a solid pulsing laser is adopted to scan by different overlapping rate along the length direction or width direction of an amorphous belt, and the total thickness of a laser surface nano-layer is controlled to be 2-10mum. When the thickness of the surface nano-layer is 2-7mum, single-side laser-induced treatment is carried out on the amorphous belt; when the thickness of the nano-layer is 7-10mum, double-side laser-induced treatment is carried out on the amorphous belt; finally, alpha-Fe (Si) nano-crystalline phase having the nano-crystalline size at 5-40 nm and the relative quantity at 5-20% as well as rest amorphous phase biphase organization material structure are formed. The amorphous nano-crystalline belt prepared by the invention has the characteristic that the amorphous nano-crystalline belt does not have brittle failure when being wound into a round due to good toughness, thus having important application value.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a method for preparing iron-based amorphous nanocrystalline soft magnetic materials by laser-induced surface nanometerization. Background technique [0002] Fe-based amorphous nanocrystalline soft magnetic materials mainly include alloys such as FeCuMSiB series, FePCCu+X series, FeAlMSiB series, FeAlSiNiZrB series, FeSiBNiMo and FeCaSiNbB series. Among these alloys, FeSiB is a basic alloy system of Fe-based amorphous alloys. Iron-based amorphous nanocrystalline materials have the following performance characteristics: high saturation magnetic induction, high magnetic permeability, low coercive force and low high-frequency loss, good hardness, wear resistance and corrosion resistance, good temperature And environmental stability, its comprehensive magnetic properties are far superior to silicon steel, ferrite, permalloy and amorphous alloys. [0003] Fe-based amorph...

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): C21D1/09C21D1/74C22C45/02
Inventor 陈岁元刘常升马利霞
Owner XINGKE MEDIUM & SMALL ENTERPRISES SERVICE CENT OF NORTHEASTERN UNIV
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