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

Zr-based amorphous alloy and preparation method thereof

A zirconium-based amorphous alloy and amorphous alloy technology, applied in the field of amorphous alloys and their preparation, can solve the problems of high purity requirements of raw materials, harsh preparation conditions, poor processing performance, etc., achieve excellent machinability, increase manufacturing The effect of slag function and excellent plastic deformation performance

Active Publication Date: 2012-03-07
BYD CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention solves the technical problems of poor machinability, poor plastic deformation performance, high requirement for raw material purity and harsh preparation conditions existing in the prior art

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

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0014] The invention provides a method for preparing a zirconium-based amorphous alloy, which comprises melting and cooling an amorphous alloy raw material in a protective gas atmosphere or vacuum condition, wherein the amorphous alloy raw material is formed according to the general formula (Zr x Al y Cu z Ni 1-x-y-z ) 100-a-b sc a Y b In the formula, x, y, z are atomic percentages, and a is the molar ratio of elements; where 0.45≤x≤0.60, 0.08≤y≤0.12, 0.25≤z≤0.35; 0<a≤5, 0≤b <0.1.

[0015] In the preparation method of the zirconium-based amorphous alloy provided by the present invention, a small amount of impurities contained in the amorphous alloy raw material have no effect on the smelting of the amorphous alloy. Based on the total amount of the zirconium-based amorphous alloy, the impurities The content may be 5 atomic % or less. The higher the purity of the various amorphous alloy raw materials used to prepare the zirconium-based amorphous alloy of the present inven...

Embodiment 1

[0022] This example illustrates the zirconium-based amorphous alloy provided by the present invention and its preparation method.

[0023] The various amorphous alloy raw materials with a purity of 95.5% by weight are dropped into an electric arc melting furnace (Shenyang Scientific Instrument Factory), the electric arc melting furnace is evacuated (the degree of vacuum is 5 Pa), and then the argon with a purity of 99.9% by volume is introduced. Gas is used as a protective gas, under the condition of 1300 ℃, smelting for 3 minutes, so that the amorphous alloy raw material is fully melted. The types and amounts of various amorphous alloy raw materials are 50.44 atomic % of Zr, 9.7 atomic % of Al, 29.585 atomic % of Cu, 7.275 atomic % of Ni, and 3 atomic % of Sc.

[0024] The molten alloy samples were then cast into copper molds by gravity casting, and 3 A cooling rate of K / s was used for cooling in a water-cooled copper mold to form a zirconium-based amorphous alloy sample A1 ...

Embodiment 2

[0034] Prepare zirconium-based amorphous alloy according to the method of Example 1, the difference is that the types and amounts of each amorphous alloy raw material are 51.74 atomic % of Zr, 9.95 atomic % of Al, 30.3475 atomic % of Cu, 7.4625 atomic % of Ni, 0.5 atomic % Sc.

[0035] Finally, an amorphous alloy sample A2 was obtained. Elemental analysis shows that the composition of the zirconium-based amorphous alloy sample A2 is (Zr 0.52 Al 0.10 Cu 0.305 Ni 0.075 ) 99.5 sc 0.5 .

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

A Zr-based amorphous alloy represented by the general formula of: (ZrxAlyCuzNi1-x-y-z)100-a-bScaYb is provided, wherein x, y, z are atomic percents, and a and b are atom molar ratios, in which: 0.45<=x<=0.60, 0.08<=y<=0.12, 0.25<=z<=0.35, 0<a<=5, 0<=b<0.1. A method for preparing a Zr-based amorphous alloy is also provided. The Zr-based amorphous alloy has excellent mechanical strength, impact toughness and machining performance and is suitable for machining. In addition, the method for preparing the Zr-based amorphous alloy has low requirements on the preparing conditions such as the raw material purity, vacuum degree and devices, etc.

Description

technical field [0001] The invention relates to an amorphous alloy and a preparation method thereof, in particular to a zirconium-based amorphous alloy and a preparation method thereof. Background technique [0002] Amorphous alloys are a new class of alloy materials whose constituent atoms are long-range disordered and short-range ordered. Due to its unique microstructure, it has superior mechanical, physical, chemical and other properties than conventional crystalline metal materials. [0003] At present, zirconium-based bulk amorphous alloys have become a research hotspot of amorphous materials due to their good amorphous forming ability, mechanical properties and thermal stability, among which Zr-Al-Cu-Ni system is the best bulk amorphous alloy so far. One of the crystal alloy forming systems. [0004] However, various excellent properties of Zr-Al-Cu-Ni quaternary alloys are based on harsh preparation conditions and high raw material purity. In its preparation proces...

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
CPCB22D27/15C22C45/10B22D27/04B22D27/003C22C1/02C22C1/11
Inventor 菅永喜张法亮宫清
Owner BYD CO LTD