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Zirconium-base amorphous-crystal multiple phase material and preparation method thereof

A zirconium-based amorphous and crystalline technology, which is applied in the field of zirconium-based amorphous-crystalline composite materials, can solve the problems of macroscopic plastic deformation and easy sudden brittle fracture

Inactive Publication Date: 2008-08-06
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Another object of the present invention is to propose a method for preparing zirconium-based amorphous-crystal composite materials by vacuum smelting and metal mold casting. Bulk amorphous without macroscopic plastic deformation, easy to suddenly brittle fracture and other disadvantages

Method used

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  • Zirconium-base amorphous-crystal multiple phase material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: Zr 46 Cu 36 Al 10 Dy 2 Ta 6

[0025] The first step: with the target ingredients

[0026] High-purity (purity greater than 99%) Zr, Cu, Al, Dy, Ta are prepared according to the atomic percentage of the nominal composition.

[0027] The second step: Vacuum melting Zr-Cu-Al-Dy-Ta alloy

[0028] (A) Put the Zr and Ta raw materials weighed in the first step into a vacuum arc melting furnace, and vacuumize to 5×10 -3 Pa, then filled with high-purity argon to 0.4×10 5 Pa, then smelt Zr-Ta alloy at 3100°C;

[0029] (B) Put the Cu, Al, Dy raw materials and Zr-Ta alloy weighed in the first step into a vacuum arc melting furnace, and vacuumize to 5×10 -3 Pa, filled with high-purity argon to 0.4×10 5 Pa, and then smelted at 2500 ° C to make Zr-Cu-Al-Dy-Ta alloy;

[0030] The third step: metal mold casting Zr 46 Cu 36 Al 10 Dy 2 Ta 6 Material

[0031] Put the Zr-Cu-Al-Dy-Ta alloy prepared in the second step into the quartz tube of the rapid solidificati...

Embodiment 2

[0034] Example 2: Zr 48 Cu 36 al 10 Gd 2 Ta 4

[0035] The first step: with the target ingredients

[0036] High-purity (purity greater than 99%) Zr, Cu, Al, Gd, Ta are prepared according to the atomic percentage of the nominal composition.

[0037] The second step: Vacuum melting Zr-Cu-Al-Gd-Ta alloy

[0038] (A) Put the Zr and Ta raw materials weighed in the first step into a vacuum arc melting furnace, and vacuumize to 5×10 -3 Pa, then filled with high-purity argon to 0.4×10 5 Pa, then smelt Zr-Ta alloy at 3100°C;

[0039] (B) Put the Cu, Al, Gd raw materials and Zr-Ta alloy weighed in the first step into a vacuum arc melting furnace, and vacuumize to 5×10 -3 Pa, filled with high-purity argon to 0.4×10 5 Pa, and then smelted at 2200 ° C to make Zr-Cu-Al-Gd-Ta alloy;

[0040] The third step: metal mold casting Zr 48 Cu 36 al 10 Gd 2 Ta 4 Material

[0041] Put the Zr-Cu-Al-Gd-Ta alloy prepared in the second step into the quartz tube of the rapid solidificat...

Embodiment 3

[0043] Example 3: Zr 46 Cu 36 al 10 Er 2 Ta 6

[0044] The first step: with the target ingredients

[0045] High-purity (purity greater than 99%) Zr, Cu, Al, Er, Ta are prepared according to the atomic percentage of the nominal composition.

[0046] The second step: Vacuum melting Zr-Cu-Al-Er-Ta alloy

[0047] (A) Put the Zr and Ta raw materials weighed in the first step into a vacuum arc melting furnace, and vacuumize to 5×10 -3 Pa, then filled with high-purity argon to 0.4×10 5 Pa, then smelt Zr-Ta alloy at 3300°C;

[0048] (B) Put the Cu, Al, Er raw materials and Zr-Ta alloy weighed in the first step into a vacuum arc melting furnace, and vacuumize to 5×10 -3 Pa, filled with high-purity argon to 0.4×10 5 Pa, and then smelted at 2200 ° C to make Zr-Cu-Al-Er-Ta alloy;

[0049] The third step: metal mold casting Zr 46 Cu 36 al 10 Er 2 Ta 6 Material

[0050] Put the Zr-Cu-Al-Er-Ta alloy prepared in the second step into the quartz tube of the rapid solidificat...

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Abstract

The invention discloses zr-based amorphous-crystal multiphase material, which is composed of Zr 45-50at%, Cu 36-40at%, Al 8-10at%, rare earth elements RE 0.5-2at% and allowance refractory element M, wherein the rare earth elements RE is one of Y, Dy, Gd, Er or Lu, the refractory element M is one of Ta or W, a second phase which is rich Ta solid solution or W compound with high melting point is precipitated from the zr-based amorphous-crystal multiphase material which is prepared through a metal mould casting method. The volume fraction of amorphous alloy in the multiphase material of the invention is 90-99%, which occupies absolute advantage, the zr-based amorphous-crystal multiphase material breaks the defects of single block amorphous alloy that the plasticity is bad, the single block amorphous alloy is abruptly invalid and brittle failure, the thermal stability is bad, and the like, the fracture strength in 22DEG C is 1800-2100MPa, the yield strength is 1600-1900MPa, the plastic deformation reaches 4-15%, and the applicable range of the material in the engineering structure and biomedical materials fields is extended.

Description

technical field [0001] The invention relates to a zirconium-based amorphous-crystal composite material with strong plasticity (ε) of 4-15%, and a method for preparing the zirconium-based amorphous-crystal composite material by vacuum smelting and metal mold casting. Background technique [0002] The zirconium-based amorphous composite phase material is composed of a zirconium-based amorphous phase and a second phase, and can be prepared by external compounding and in-situ compounding. Amorphous alloy (also known as metallic glass) is a general term for a class of metal alloys whose atomic arrangement has the characteristics of long-range disorder and short-range order. After decades of research, a large number of zirconium-based bulk amorphous alloys with good amorphous alloy forming ability, high fracture strength, high hardness, and high corrosion resistance have been developed as potential and ideal engineering structural materials. Foundation. But a single zirconium-ba...

Claims

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Application Information

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IPC IPC(8): C22C45/10C22C16/00
CPCC22C1/002C22C45/10C22C1/11
Inventor 张涛田昂峰赵相金
Owner BEIHANG UNIV
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