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W-Ni-Fe-Y-ZrB2 multi-phase alloy material and preparation method thereof

A technology of w-ni-fe-y-zrb2, multiphase alloy, applied in the field of W-Ni-Fe-Y-ZrB2 multiphase alloy material and its preparation, can solve the problem of room temperature plasticity, high temperature strength and oxidation resistance. To achieve good matching and other issues, to achieve excellent high temperature oxidation resistance, improve sintering performance, inhibit aggregation and growth effects

Active Publication Date: 2017-06-13
XIAN HUASHAN METAL PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional tungsten alloys have some performance defects of tungsten itself, that is, room temperature plasticity, high temperature strength and oxidation resistance are not well matched.

Method used

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  • W-Ni-Fe-Y-ZrB2 multi-phase alloy material and preparation method thereof

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Effect test

preparation example Construction

[0023] A kind of W-Ni-Fe-Y-ZrB 2 The preparation method of multi-phase alloy material, its preparation steps are: (1) weigh Ni, Fe, Y, ZrB by mass percentage 2 and W each raw material, and then the raw materials weighed are mixed uniformly by ball milling under the protection of argon to obtain a mixed powder;

[0024] (2) Prepare the shell, put the mixed powder described in step (1) into the shell, and seal the shell after vacuuming;

[0025] (3) Put the shell sealed with the mixed powder in step (2) into a hot isostatic pressing furnace, and sinter it for 1h-2h at a temperature of 1400°C-1600°C and a pressure of 100MPa-200MPa , the shell was removed after natural cooling to obtain W-Ni-Fe-Y-ZrB 2 multiphase alloy materials.

[0026] It is worth noting that the ball mill is a dry ball mill, the equipment of the ball mill is a planetary ball mill, the ball mill jar in the planetary ball mill is a tungsten alloy ball mill jar, the grinding balls are tungsten alloy balls, and...

Embodiment 1

[0029] Embodiment 1: A kind of W-Ni-Fe-Y-ZrB 2 Multi-phase alloy material, made of raw materials with the following mass percentages: Ni5%, Fe 2.5%, Y 8%, ZrB 2 3%, W 81.5%; all raw materials are powder raw materials, in which the particle size of Ni powder is not greater than 3μm, the particle size of Fe powder is not greater than 6μm, ZrB 2 The particle size of the W powder is not greater than 5 μm, and the particle size of the W powder is not greater than 10 μm; the Ni powder, Fe powder, Y powder and ZrB powder 2 The mass purity of the powders is not less than 99%, and the mass purity of the W powder is not less than 99.9%.

[0030] The W-Ni-Fe-Y-ZrB 2The preparation method of multi-phase alloy material comprises the following steps:

[0031] (1) Weigh W, Ni, Fe, Y, ZrB by mass percentage 2 Each raw material is then mixed evenly by ball milling the weighed raw materials to obtain a mixed powder; the ball mill is a dry ball mill, the equipment of the ball mill is a plan...

Embodiment 2

[0037] Embodiment 2: A kind of W-Ni-Fe-Y-ZrB 2 Multi-phase alloy material, made of raw materials with the following mass percentages: Ni2%, Fe 1%, Y 5%, ZrB 2 1%, W 91%; all raw materials are powder raw materials, in which the particle size of Ni powder is not greater than 3μm, the particle size of Fe powder is not greater than 6μm, ZrB 2 The particle size of the W powder is not greater than 5 μm, and the particle size of the W powder is not greater than 10 μm; the Ni powder, Fe powder, Y powder and ZrB powder 2 The mass purity of the powders is not less than 99%, and the mass purity of the W powder is not less than 99.9%.

[0038] The W-Ni-Fe-Y-ZrB 2 The preparation method of multi-phase alloy material comprises the following steps:

[0039] (1) Weigh W, Ni, Fe, Y, ZrB by mass percentage 2 Each raw material is then mixed evenly by ball milling the weighed raw materials to obtain a mixed powder; the ball mill is a dry ball mill, the equipment of the ball mill is a planeta...

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Abstract

The invention discloses a W-Ni-Fe-Y-ZrB2 multi-phase alloy material and a preparation method thereof, and relates to the technical field of multi-phase materials. The W-Ni-Fe-Y-ZrB2 multi-phase alloy material is prepared from the following raw materials in percentage by mass: 2 to 8 percent of Ni, 1 to 4 percent of Fe, 5 to 11 percent of Y, 1 to 5 percent of ZrB2, and the balance of W; the preparation method of the W-Ni-Fe-Y-ZrB2 multi-phase alloy material comprises the following steps: (1) weighing various raw materials in percentage by mass, and then performing ball milling on the weighed raw materials under the protection of argon and mixing uniformly to obtain mixed powder; (2) preparing shells, filling the shells with the mixed powder, and sealing the shells after vacuumizing; (3) hot isostatic pressing sintering to obtain the W-Ni-Fe-Y-ZrB2 multi-phase alloy material. The multi-phase alloy material disclosed by the invention has the characteristics of high room-temperature and high-temperature strength, high plasticity, low thermal expansion coefficient and oxidation resistance, and has wide application prospect in top science field, national defence industry and civil industry.

Description

technical field [0001] The present invention relates to the technical field of multiphase materials, in particular to a W-Ni-Fe-Y-ZrB 2 Multiphase alloy materials and methods for their preparation. Background technique [0002] Tungsten is one of the most important refractory metals. It has a high melting point, high density, high temperature strength, and strong electrical and thermal conductivity and impact resistance. Therefore, it has become a high-temperature structural material with a working temperature exceeding 1300 ° C. It is widely used in electronics, Aviation, aerospace, atomic energy, chemical industry, metallurgy, machinery, transportation, medicine and military industries; tungsten is also an important functional material, playing an important role in national defense high-tech weapons and equipment, electric light sources and electronic control systems. [0003] Tungsten-based alloys include tungsten-based high specific gravity alloys (such as W-Ni-Fe, W-Ni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C27/04C22C32/00C22C1/05C22C1/10
CPCC22C1/05C22C27/04C22C32/0073
Inventor 常喜张力力王占峰翁永胜翁晓东
Owner XIAN HUASHAN METAL PROD CO LTD
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