Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of Zrcuagalbenico bulk amorphous alloy and preparation method thereof

A technology of amorphous alloys and blocks, which is applied in the field of bulk amorphous alloys and its preparation, can solve the problems of difficulty in preparing large-size amorphous alloys, difficulty in obtaining amorphous alloys, and difficulty in improving thermal stability. Achieve the effects of large size, excellent thermal stability, inhibition of atomic movement and crystallization process

Active Publication Date: 2015-10-28
ZHEJIANG UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. It is difficult to prepare large-sized amorphous alloys: metals and alloy liquids tend to transform into crystalline materials with regular atomic arrangements during the cooling process. To obtain amorphous alloys with long-range disordered atomic arrangements, the cooling rate must be sufficient Fast, so that the atoms are frozen before they can arrange into a crystalline structure
Under the same conditions, as the sample size increases, the cooling rate slows down, making it difficult to obtain large-sized amorphous alloys
[0005] 2. It is difficult to improve thermal stability: the amorphous alloy is in a thermodynamic metastable state, and has a tendency to transform to a thermodynamic steady state-crystalline state. This transition temperature is called the crystallization temperature

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 Zrcuagalbenico bulk amorphous alloy and preparation method thereof
  • A kind of Zrcuagalbenico bulk amorphous alloy and preparation method thereof
  • A kind of Zrcuagalbenico bulk amorphous alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0040] A kind of preparation method of ZrCuAgAlBeNiCo system bulk amorphous alloy of the present invention comprises the following steps:

[0041] 1) Put Zr, Cu, Ag, Al, Be, Ni, Co metal raw materials in the first stage of the arc melting furnace according to the ratio of 42.78:30.44~33.48:6.76~7.44:7.44:7:1~3:1~3 In a copper boat, the mass purity of Zr, Cu, Ag, Al, Be, Ni, and Co metal raw materials is 96%~99.999%; in addition, the Zr ingot is placed in the second copper boat of the arc melting furnace, and the Zr ingot The ratio of mass to the total mass of Zr, Cu, Ag, Al, Be, Ni, Co metal raw materials is 1:2~1:5;

[0042] 2) Vacuum the arc melting furnace until the pressure in the furnace is lower than 8×10 -3 Pa, and then fill the arc melting furnace with Ar gas with a volume percentage greater than or equal to 98% to equal the external atmospheric pressure;

[0043] 3) The Zr ingot in the second copper boat of the melting arc melting furnace consumes oxygen for 1-2 min...

Embodiment 1

[0068] 1) Put Zr, Cu, Ag, Al, Be, Ni, Co metal raw materials in the first copper boat of the arc melting furnace according to the ratio of 42.78:33.48:7.44:7.44:7:1:1,

[0069] The respective mass purity of Zr, Cu, Ag, Al, Be, Ni and Co metal raw materials is 96%; in addition, the Zr ingot is placed in the second copper boat of the electric arc melting furnace, and the quality of the Zr ingot is the same as that of Zr, Cu, Ag, The total mass ratio of Al, Be, Ni, Co metal raw materials is 1:5,

[0070] 2) Vacuum the electric arc melting furnace to the furnace pressure of 7×10 -3 Pa, and then fill the arc melting furnace with 98% Ar gas by volume until it is equal to the external atmospheric pressure;

[0071] 3) The Zr ingot in the second copper boat of the melting arc melting furnace consumes oxygen for 2 minutes, and the melting temperature is above 2000 degrees Celsius;

[0072] 4) Then smelt the Zr, Cu, Ag, Al, Be, Ni, Co metal raw materials in the first copper boat of th...

Embodiment 2

[0078] 1) Put Zr, Cu, Ag, Al, Be, Ni, Co metal raw materials in the first copper boat of the arc melting furnace according to the ratio of 42.78:30.44:6.76:7.44:7:3:3,

[0079] The respective mass purity of Zr, Cu, Ag, Al, Be, Ni, and Co metal raw materials is 99.999%; in addition, the Zr ingot is placed in the second copper boat of the arc melting furnace, and the quality of the Zr ingot is the same as that of Zr, Cu, Ag, The total mass ratio of Al, Be, Ni, Co metal raw materials is 1:4,

[0080] 2) Vacuum the electric arc melting furnace to the furnace pressure of 6×10 -3 Pa, and then fill the arc melting furnace with 99% Ar gas by volume until it is equal to the external atmospheric pressure;

[0081] 3) The Zr ingot in the second copper boat of the melting arc melting furnace consumes oxygen for 1.5 minutes, and the melting temperature is above 2000 degrees Celsius;

[0082] 4) Then smelt the Zr, Cu, Ag, Al, Be, Ni, Co metal raw materials in the first copper boat of the ...

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
diameteraaaaaaaaaa
sizeaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a ZrCuAgAlBeNiCo series block amorphous alloy and a preparation method thereof. A structural formula is Zr42.78Cux1Agx2Al7.44Be7Nix3Cox4. The preparation method comprises: placing each metal raw material into an arc melting furnace; placing a Zr ingot into the arc melting furnace, and filling Ar gas after vacuum-pumping; melting each metal raw material to obtain alloy melt; or opening a bottom vacuum valve to suck the alloy melt into a copper mold to finish after completely cooled; or placing an alloy ingot into an Al2O3 crucible after completely cooled, and vacuum-pumping; filling Ar gas into a casting furnace; heating the alloy ingot by electromagnetic induction, melting the alloy ingot until being a liquid state; and pouring the crucible and casting into the copper mold, to finished after completely cooled. The preparation method raises atom stacking density, thereby inhibiting atom moving and crystallizing processes, and raising glass formation capability; and the block amorphous alloy has big dimensions and excellent heat stability.

Description

technical field [0001] The invention relates to a bulk amorphous alloy and a preparation method thereof, in particular to a ZrCuAgAlBeNiCo bulk amorphous alloy and a preparation method thereof. Background technique [0002] Amorphous alloys are a new class of alloy materials whose atomic arrangement is not periodic or symmetrical. Due to their special microstructure, they have superior mechanical, physical, chemical and magnetic properties, such as high strength, high hardness, wear resistance and corrosion resistance. These superior properties make amorphous alloys have potential applications in many fields. [0003] At the same time, amorphous alloys also have their own weaknesses, which limit its application. The main difficulties faced in the application of amorphous alloys are: [0004] 1. It is difficult to prepare large-sized amorphous alloys: metals and alloy liquids tend to transform into crystalline materials with regular atomic arrangements during the cooling p...

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): C22C45/10C22C1/02
Inventor 蒋建中葛恺王晓东吴振福马毅
Owner ZHEJIANG UNIV