Preparation method of high-strength high-plasticity Ni-W-X alloy

A high-plasticity and high-strength technology, applied in the field of high-strength and high-plasticity Ni-W-X alloy preparation, can solve problems such as high cost and complex preparation process, and achieve the effect of simple steps and improved as-cast mechanical properties.

Active Publication Date: 2019-06-14
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The density of tungsten-nickel-cobalt alloy mentioned in patent CN201510567928 and CN201610853863.2 belongs to 11~13g / cm 3 , but its preparation process is complicated, after casting, deformation treatment (forging, rolling) and heat treatment are required, and the cost is high

Method used

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  • Preparation method of high-strength high-plasticity Ni-W-X alloy
  • Preparation method of high-strength high-plasticity Ni-W-X alloy
  • Preparation method of high-strength high-plasticity Ni-W-X alloy

Examples

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Embodiment 1

[0033] A method for preparing a high-strength and high-plasticity Ni-W-X alloy. The raw materials of the casting alloy include nickel-tungsten binary master alloy, Ni element and X element;

[0034] The atomic percentage of tungsten in the nickel-tungsten binary master alloy is 11%;

[0035] The purity of the Ni elemental substance is not less than 99.5%;

[0036] The purity of the X elemental substance is not less than 99.5%, and X is Al;

[0037] The atomic percentage of W in this cast alloy was 10 atomic %, the atomic percentage of Al was 9 atomic %, and the balance was Ni.

[0038] Prepare the atomic ratio as Ni 81 W 10 al 9 Alloy, the specific steps are as follows:

[0039] Step 1: Select Ni-11W master alloy with 11% W atomic percentage, nickel and aluminum with a purity of 99.5% as raw materials, and use 100# silicon carbide sandpaper to polish the Ni-11W master alloy and Ni and Al to obtain a clean The raw materials were ultrasonically cleaned with acetone, and th...

Embodiment 2-18

[0053] Examples 2-18 adopt the same process route as Example 1, only the alloy raw materials and components are different, and the mechanical properties of the tested alloys are shown in Table 1.

[0054] Table 1 Example 2-18 alloy composition and performance table

[0055]

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Abstract

The invention relates to a preparation method of high-strength high-plasticity Ni-W-X alloy. The high-strength and high-plasticity of the alloy means that the cast-state yield strength is larger thanor equal to 500 MPa, the tensile strength is larger than or equal to 800 MPa, and the elongation is 30-50%. The preparation method belongs to the technical field of metal material preparation, and when the ratio of raw materials is different, the density of the obtained casting alloy can be continuously adjusted in the range of 8.8-12.1 g/cm<3>. The forming technique of the invention does not needforging and heat treatment, and has important significance for industrial production. Through the selection of components and the preparation method, the alloy can have the high strength, the high plasticity and continuously adjustable density in the cast state.

Description

technical field [0001] The invention relates to a method for preparing a high-strength and high-plasticity Ni-W-X alloy. The high-strength and high-plasticity of the alloy refers to: the yield strength of the alloy as cast is ≥ 500 MPa, the tensile strength is ≥ 800 MPa, and the elongation is 30% to 50%. The technical field of material preparation, and when the ratio of raw materials is different, the density of the obtained casting alloy is 8.8-12.1g / cm 3 Continuously adjustable within the range. Background technique [0002] In modern warfare, important military facilities such as command posts and arsenals are usually built underground, with strong fortifications built above them. In order to strike such targets, the development and production of ground penetrating bombs for attacking underground targets have been launched internationally since the 1980s. The warhead of the ground penetrating projectile can be divided into a kinetic energy penetrating warhead, a serial ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/03C22C1/03
Inventor 谭成文刘志超于晓东聂志华王春旭厉勇刘少尊郝芳曹国鑫刘广发
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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