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Niobium and tungsten alloy and preparation method thereof

An alloy, niobium-tungsten technology, applied in the field of niobium-tungsten alloy and its preparation, can solve the problem of insufficient strength of niobium-tungsten alloy, and achieve the effect of excellent strength

Inactive Publication Date: 2017-02-22
林海英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the niobium-tungsten alloys currently on the market are not strong enough

Method used

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  • Niobium and tungsten alloy and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A niobium-tungsten alloy, comprising the following raw materials in parts by weight: 102 parts of niobium, 14 parts of tungsten carbide powder, 5 parts of zirconium, 1 part of tin, 1 part of iridium, 5 parts of hafnium carbide, 1 part of titanium carbide, and tantalum carbide 2 parts ytterbium oxide, 1 part sintered aluminum, 1 part aluminum nitride, 1 part magnesium nitride, 1 part silicon dioxide, 1 part yttrium oxide, and 2 parts boron carbide.

[0019] A kind of preparation method of niobium tungsten alloy comprises the following steps:

[0020] 1) Pour 102 parts of niobium, 14 parts of tungsten carbide powder, 5 parts of zirconium, 1 part of tin, 1 part of iridium, 5 parts of hafnium carbide, 1 part of titanium carbide, 2 parts of tantalum carbide and 2 parts of ytterbium oxide into the metal smelting furnace, then heated to 900°C, and stirred after all the raw materials were completely melted to obtain liquid metal for later use;

[0021] 2) Pour 1 part of sinter...

Embodiment 2

[0025] A niobium-tungsten alloy, comprising the following raw materials in parts by weight: 100 parts of niobium, 16 parts of tungsten carbide powder, 7 parts of zirconium, 3 parts of tin, 3 parts of iridium, 7 parts of hafnium carbide, 3 parts of titanium carbide, and tantalum carbide 4 parts of ytterbium oxide, 4 parts of sintered aluminum, 3 parts of aluminum nitride, 3 parts of magnesium nitride, 3 parts of silicon dioxide, 3 parts of yttrium oxide, and 4 parts of boron carbide.

[0026] A preparation method of niobium-tungsten alloy, comprising the following steps:

[0027] 1) Pour 100 parts of niobium, 16 parts of tungsten carbide powder, 7 parts of zirconium, 3 parts of tin, 3 parts of iridium, 7 parts of hafnium carbide, 3 parts of titanium carbide, 4 parts of tantalum carbide and 4 parts of ytterbium oxide into the metal smelting furnace, then heated to 900°C, and stirred after all the raw materials were completely melted to obtain liquid metal for later use;

[0028...

Embodiment 3

[0032] A niobium-tungsten alloy, comprising the following raw materials in parts by weight: 101 parts of niobium, 15 parts of tungsten carbide powder, 6 parts of zirconium, 2 parts of tin, 2 parts of iridium, 6 parts of hafnium carbide, 2 parts of titanium carbide, and tantalum carbide 3 parts ytterbium oxide, 2 parts sintered aluminum, 2 parts aluminum nitride, 2 parts magnesium nitride, 2 parts silicon dioxide, 2 parts yttrium oxide, and 3 parts boron carbide.

[0033] A preparation method of niobium-tungsten alloy, comprising the following steps:

[0034] 1) Pour 101 parts of niobium, 15 parts of tungsten carbide powder, 6 parts of zirconium, 2 parts of tin, 2 parts of iridium, 6 parts of hafnium carbide, 2 parts of titanium carbide, 3 parts of tantalum carbide and 3 parts of ytterbium oxide into the metal smelting furnace, then heated to 900°C, and stirred after all the raw materials were completely melted to obtain liquid metal for later use;

[0035] 2) Pour 2 parts of ...

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Abstract

The invention discloses a niobium and tungsten alloy. The niobium and tungsten alloy comprises the raw materials including, by weight, 100-102 parts of niobium, 14-16 parts of tungsten carbide powder, 5-7 parts of zirconium, 1-3 parts of tin, 1-3 parts of iridium, 5-7 parts of hafnium carbide, 1-3 parts of titanium carbide, 2-4 parts of tantalum carbide, 2-4 parts of ytterbium oxide, 1-3 parts of sintered aluminum, 1-3 parts of aluminum nitride, 1-3 parts of magnesium nitride, 1-3 parts of silicon dioxide, 1-3 parts of yttrium oxide and 2-4 parts of boron carbide. The niobium and tungsten alloy is high and good in strength.

Description

technical field [0001] The invention relates to a niobium-tungsten alloy and a preparation method thereof. Background technique [0002] Tungsten is an effective strengthening element for niobium, but with the increase of tungsten addition, the plastic-brittle transition temperature of the alloy will rise, and the grain will grow significantly. Therefore, in order to obtain a high-strength niobium-tungsten alloy, the addition of tungsten must be properly controlled, and at the same time, elements such as zirconium and hafnium must be added to refine the grain and reduce the plastic-brittle transition temperature. In 1961, the United States successfully developed the Nb-10W-2.5Zr alloy used in the skin of the space shuttle, and later developed into the Nb-10W-1Zr-0.1C alloy. In the early 1970s, China also successfully developed NbWl0Zr2.5 and NbWl0Zr1C0.1 alloys. [0003] Niobium-tungsten alloys can be divided into solid solution strengthening alloys and alloys combining so...

Claims

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Application Information

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IPC IPC(8): C22C27/02C22C32/00C22C1/02C22C1/10
CPCC22C1/02C22C1/1036C22C27/02C22C32/0005C22C1/1047
Inventor 林海英
Owner 林海英
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