Method for inducing A184Ni10Gd6 amorphous alloy to generate phase separation

An amorphous alloy and phase separation technology, which is applied in the field of inducing phase separation of Al84Ni10Gd6 amorphous alloys.

Inactive Publication Date: 2015-08-26
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the mixing enthalpy of Fe-Cr is negative, it is close to 0, and phase separation is also prone to occur

Method used

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  • Method for inducing A184Ni10Gd6 amorphous alloy to generate phase separation
  • Method for inducing A184Ni10Gd6 amorphous alloy to generate phase separation
  • Method for inducing A184Ni10Gd6 amorphous alloy to generate phase separation

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Experimental program
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Effect test

Embodiment 1

[0027] an induced Al 84 Ni 10 Gd 6 A method for phase separation of amorphous alloys, comprising the following steps:

[0028] (1) Prepare corrosion solution: prepare corrosion solution according to the volume fraction ratio of 27vol.% nitric acid and 73vol.% methanol, and put it in a beaker for later use.

[0029] (2) Al 84 Ni 10 Gd 6 The amorphous strip sample is placed in a beaker filled with corrosive solution, and placed at room temperature for 120 hours. When placed, the beaker needs to be sealed with a plastic wrap to reduce the volatilization of the solution.

[0030] (3) After the set time, the sample is taken out, placed in a container filled with deionized water for ultrasonic cleaning, and then the phase-separated amorphous sample can be obtained. Among them, the Al 84 Ni 10 Gd 6 The amorphous alloy strip has a width of 3 mm and a thickness of 30 μm.

[0031] (4) Carry out XRD test to the obtained amorphous sample ( figure 1 ), it can be found that the p...

Embodiment 2

[0034] (1) Prepare corrosion solution: prepare corrosion medium 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 Al 84 Ni 10 Gd 6The amorphous strips were thinned in a double-jet electrolytic thinner at -20°C for 3 minutes. Among them, the Al 84 Ni 10 Gd 6 The amorphous alloy strip has a width of 3 mm and a thickness of 30 μm.

[0036] (3) After the set time, the sample is taken out, placed in a container filled with deionized water for ultrasonic cleaning, and then the phase-separated amorphous sample can be obtained.

[0037] (4) carry out transmission electron microscope observation to the sample that makes, can find, such as figure 2 , the phase separation can be reflected in the dot-like structure between light and dark phases, and the measured pore size of the sample is in the range of 1 nanometer to 5 microns, and the volume percentage is ...

Embodiment 3

[0040] an induced Al 84 Ni 10 Gd 6 A method for phase separation of amorphous alloys, comprising the following steps:

[0041] (1) Prepare corrosion solution: prepare corrosion solution according to the volume fraction ratio of 20vol.% nitric acid and 80vol.% methanol, and put it in a beaker for later use.

[0042] (2) Al 84 Ni 10 Gd 6 The amorphous strip sample is placed in a beaker filled with corrosive liquid, and placed at room temperature for 100 hours. When placed, the beaker needs to be sealed with a plastic wrap to reduce the volatilization of the solution. Among them, the Al 84 Ni 10 Gd 6 The thickness of the amorphous alloy strip is 20-40 μm, and the width is 2-4 mm.

[0043] (3) After the set time, the sample is taken out, placed in a container filled with deionized water for ultrasonic cleaning, and then the phase-separated amorphous sample can be obtained.

[0044] (4) Carry out XRD test to the obtained amorphous sample, it can be found that the phase-se...

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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 a kind of induction Al 84 Ni 10 Gd 6 The invention relates to a method for phase separation of amorphous alloys, in particular to a method for phase separation of amorphous alloys through a strong corrosive medium. Background technique [0002] Amorphous alloys are usually also called metallic glasses, and the origin of this name is because they have the advantages of both metals and glasses, 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. In the 21st century, they have received widespread attention as a new type of material. About this Research in this area has also achieved remarkable results. [0003] In recent years, with the urgent demand for high-strength and low-density materials in the aerospace industry...

Claims

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Application Information

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Patent Type & Authority Applications(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
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