Amorphous composite materials, and preparation method and applications thereof

An amorphous composite material and amorphous phase technology, which is applied in the field of amorphous composite materials and their preparation, and achieves the effects of short sintering time, fast heating rate and controllable amorphous content

Active Publication Date: 2013-12-25
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there is no literature report on the preparation of amorphous composite materials with controllable amorphous content from dual-phase amorphous alloy powder by powder metallurgy technology and amorphous crystallization method.

Method used

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  • Amorphous composite materials, and preparation method and applications thereof
  • Amorphous composite materials, and preparation method and applications thereof
  • Amorphous composite materials, and preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1: the preparation of amorphous composite material

[0048] Step 1: Mix the powder

[0049] Nickel-based amorphous powder and titanium-based amorphous powder are formulated according to the following elements and their atomic percentages. Nickel-based amorphous powder: Ni 57at.%, Zr 22at.%, Ti 8at.%, Nb 8at.%, Al 5at.%; Titanium-based amorphous powder: Ti 66at.%, Nb 13at.%, Cu 8at.%, Ni 6.8at.%, Al 6.2at.%, and the rest are unavoidable trace impurities. Nickel, titanium, zirconium, niobium, copper and aluminum are all added in the form of simple substances, among which, the average particle size of each element powder is about 50 μm, except that the purity of aluminum is 99.0wt.%, the purity of other particle powders is high At 99.9wt.%. Then, the mixed powders were dry-blended in a V-0.002 type powder mixer for 24 hours.

[0050] Step 2: Preparation of amorphous powder by high energy ball milling

[0051] The QM-2SP20 planetary ball mill is used for high...

Embodiment 2

[0061] Embodiment 2: the preparation of amorphous composite material

[0062] Step 1: Mix the powder

[0063] First, nickel-based amorphous powder and titanium-based amorphous powder are formulated according to the following elements and their atomic percentages. Nickel-based amorphous powder: Ni 57at.%, Zr 22at.%, Ti 8at.%, Nb 8at.%, Al 5at.%; Titanium-based amorphous powder: Ti 66at.%, Nb 13at.%, Cu 8at.%, Ni 6.8at.%, Al 6.2at.%, and the rest are unavoidable trace impurities. Nickel, titanium, zirconium, niobium, copper and aluminum are all added in the form of simple substances, among which, the average particle size of each element powder is about 50 μm, except that the purity of aluminum is 99.0wt.%, the purity of other particle powders is high At 99.9wt.%. Then, the mixed powders were dry-blended in a V-0.002 type powder mixer for 24 hours.

[0064] Step 2: Preparation of amorphous powder by high energy ball milling

[0065] The QM-2SP20 planetary ball mill is used f...

Embodiment 3

[0075] Embodiment 3: the preparation of amorphous composite material

[0076] Step 1: Mix the powder

[0077] Nickel-based amorphous powder and titanium-based amorphous powder are formulated according to the following elements and their atomic percentages, nickel-based amorphous powder: Ni 59at.%, Zr 20at.%, Ti 10at.%, Nb 7at.%, Al 4at.%; Titanium-based amorphous powder: Ti 66at.%, Nb 18at.%, Cu 6.0at.%, Ni 6.5at.%, Al 3.5at.%, and the rest are unavoidable trace impurities. Nickel, titanium, zirconium, niobium, copper and aluminum are all added in the form of simple substances, among which, the average particle size of each element powder is about 50 μm, except that the purity of aluminum is 99.0wt.%, the purity of other particle powders is high At 99.9wt.%. Then, the mixed powders were dry-blended in a V-0.002 type powder mixer for 24 hours.

[0078] Step 2: Preparation of amorphous powder by high energy ball milling

[0079] The high-energy ball mill is completed by usin...

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Abstract

The invention belongs to the field of metal amorphous composite materials, and discloses amorphous composite materials, and a preparation method and applications thereof. The amorphous composite materials comprise nickel, zirconium, titanium, niobium, aluminum and copper with a nickel-based amorphous phase as a matrix phase and beta-Ti and (Cu,Ni) Ti2 as reinforcing phases, and comprise the specific components according to the atomic percentage: 30-59 at.% of Ni, 10-24 at.% of Zr, 10-35 at.% of Ti, 7-10 at.% of Nb, 3-7 at.% of Al, 1-3 at.% of Cu, and the balance being inevitable trace impurities. The amorphous composite materials are prepared by rapidly sintering a nickel-based amorphous powder and a titanium-based amorphous powder. With control of the addition amount of the nickel-based amorphous powder, the amorphous composite materials with different amorphous phase content can be obtained. The amorphous composite materials are nearly fully dense, and can be applied in the fields of aeronautics and astronautics, military industry and the like.

Description

technical field [0001] The invention belongs to the field of metal amorphous composite materials, and in particular relates to an amorphous composite material and its preparation method and application. Background technique [0002] Bulk amorphous alloys have good mechanical properties such as high strength, high hardness, and high elastic modulus, but their low plasticity limits their application as structural materials. Bulk amorphous composites can have enhanced plasticity due to the propagation of dislocations retarded by the second phase. At the same time, bulk amorphous composite materials have excellent comprehensive properties such as high strength, high hardness, high elastic modulus, corrosion resistance and wear resistance, so they have broad application prospects in aerospace, electronics, instrumentation and other fields. The development of bulk amorphous composites in which second-phase particles of different scales coexist with the amorphous matrix has become...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C45/04C22C1/04
Inventor 杨超曾劲屈盛官李小强
Owner SOUTH CHINA UNIV OF TECH
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