an induced al 84 ni 10 gd 6 Method for Phase Separation of Amorphous Alloys

A technology for phase separation of amorphous alloys, applied in the field of inducing phase separation of Al84Ni10Gd6 amorphous alloys, can solve problems such as composition and energy fluctuations, system instability, etc., and achieve the effects of low cost, simple and easy method, and high efficiency

Inactive Publication Date: 2017-03-08
SHANDONG UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, according to Hume-Rothery and Anderson's point of view, when the composition is at the composition point where there is a dense packing of atoms, the free energy will produce a sudden drop, which will produce an immiscible zone. It is based on this point of view that we find that in Al 94-x Ni x Gd 6 (x=0~10at.%) In the amorphous alloy system, although the mixing enthalpy between elements is negative However, when the Ni content is 10at.%, there will be an inmiscible zone, and the system will be unstable. When subjected to an external field, there will be fluctuations in composition and energy, resulting in phase separation

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
  • an induced al <sub>84</sub> ni <sub>10</sub> gd <sub>6</sub> Method for Phase Separation of Amorphous Alloys
  • an induced al <sub>84</sub> ni <sub>10</sub> gd <sub>6</sub> Method for Phase Separation of Amorphous Alloys
  • an induced al <sub>84</sub> ni <sub>10</sub> gd <sub>6</sub> Method for Phase Separation of Amorphous Alloys

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] An induced Al 84 Ni 10 Gd 6 The method for phase separation of amorphous alloy includes the following steps:

[0028] (1) Preparation of the corrosive solution: the corrosive solution was prepared according to the volume fraction ratio of 27vol.% nitric acid and 73vol.% methanol, and placed in a beaker for later use.

[0029] (2) The Al prepared by the single roll spinning method 84 Ni 10 Gd 6 Amorphous strip samples were placed in a beaker containing a corrosive solution, and placed at room temperature for 120 hours. When placed, the beaker needs to be sealed with plastic wrap to reduce the volatilization of the solution.

[0030] (3) Take out the sample after the set time and place it in a container filled with deionized water for ultrasonic vibration cleaning to obtain a phase-separated amorphous sample. Where the Al 84 Ni 10 Gd 6 The width of the amorphous alloy strip is 3mm and the thickness is 30μm.

[0031] (4) Perform XRD test on the obtained amorphous sample ( figure 1...

Embodiment 2

[0034] (1) Preparation of corrosive liquid: the corrosive medium is prepared according to the volume fraction ratio of 27vol.% nitric acid and 73vol.% methanol.

[0035] (2) Pour the corrosive medium into the double-jet electrolytic thinner, and then pour the Al 84 Ni 10 Gd 6 The amorphous strip is placed in a double-jet electrolytic thinner for thinning, and thinning is performed at -20°C for 3 minutes. Where the Al 84 Ni 10 Gd 6 The width of the amorphous alloy strip is 3mm and the thickness is 30μm.

[0036] (3) Take out the sample after the set time and place it in a container filled with deionized water for ultrasonic vibration cleaning to obtain a phase-separated amorphous sample.

[0037] (4) Observation of the prepared sample by transmission electron microscope, it can be found that figure 2 The phase separation can be reflected in the small dot-like structure between light and dark. The measured pore size of the sample is in the range of 1 nanometer to 5 microns, and the vo...

Embodiment 3

[0040] An induced Al 84 Ni 10 Gd 6 The method for phase separation of amorphous alloy includes the following steps:

[0041] (1) Preparation of corrosive solution: The corrosive solution was prepared according to the volume fraction ratio of 20vol.% nitric acid and 80vol.% methanol, and placed in a beaker for later use.

[0042] (2) The Al prepared by the single roll spinning method 84 Ni 10 Gd 6 Amorphous strip samples were placed in a beaker containing a corrosive solution and placed at room temperature for 100 hours. The beaker should be sealed with plastic wrap to reduce the volatilization of the solution. Where the Al 84 Ni 10 Gd 6 The thickness of the amorphous alloy strip is 20-40 μm and the width is 2-4mm.

[0043] (3) Take out the sample after the set time and place it in a container filled with deionized water for ultrasonic vibration cleaning to obtain a phase-separated amorphous sample.

[0044] (4) Performing XRD test on the obtained amorphous sample, it can be found that...

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
widthaaaaaaaaaa
thicknessaaaaaaaaaa
widthaaaaaaaaaa
Login to view more

Abstract

The invention discloses a method for inducing A184Ni10Gd6 amorphous alloy to generate phase separation. The method comprises the following steps: performing corrosion treatment on an A184Ni10Gd6 amorphous alloy strip in a nitric acid methanol solution, and washing to obtain an amorphous sample subjected to phase separation. The amorphous strip can be induced to generate phase separation by using a simple corrosion method, the method is simple and feasible, and the prepared sample is still in an amorphous state without conspicuous crystallization phenomenon. The corroded amorphous strip has honeycomb shaped holes, can be used for preparing a nano porous material and can be used in the fields such as catalysis and batteries. In addition, the plasticity of the amorphous alloy subjected to phase separation can be improved, expansion of a shearing zone can be obstructed by the second phase in partial areas, and thus the plasticity can be improved.

Description

Technical field [0001] The present invention relates to an induction Al 84 Ni 10 Gd 6 The method for phase separation of amorphous alloys specifically relates to a method for phase separation of amorphous alloys through strong corrosive media. Background technique [0002] Amorphous alloys are often called metallic glass, and the origin of this name is because it has the advantages of both metal and glass, such as excellent mechanical properties and physical and chemical properties. Amorphous materials have many excellent properties, such as high hardness, high strength, excellent magnetic properties, excellent corrosion resistance and wear resistance, etc. As a new type of material in the 21st century, it has received extensive attention. Research on this aspect has also achieved remarkable results. [0003] In recent years, with the urgent need for high-strength and low-density materials in the aerospace industry and transportation industry, lightweight amorphous alloys, especia...

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): C22C45/08C23F1/20C25F3/04
Inventor 王伟民王永刚李英杰操光辉郭玲玉
Owner SHANDONG 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