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al x Cocrfeni multi-element alloy wire material and preparation method

An alloy wire and multi-element technology, which is applied in the field of hot-drawn AlxCoCrFeNi multi-element alloy wire and its preparation, can solve the problems that the electroplated chromium layer is difficult to adapt to mechanical high temperature, high-speed working requirements, pollute the environment, etc., and achieve deformation Uniform, simple process flow, good quality effect

Active Publication Date: 2017-01-04
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Contents of the present invention Aiming at the disadvantages that the current chromium plating layer is difficult to adapt to the high-temperature and high-speed working requirements of modern machinery, and the production process seriously pollutes the environment, a multi-element alloy wire suitable for arc spraying and its preparation method are proposed

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0017] First design the atomic percentage expression of the alloy composition as Al 0.3 CoCrFeNi, then convert the atomic percent into mass ratio, and take the raw material with an electronic balance, described as the purity of each component raw material is greater than 99.9%, and the total weight of the raw material is 3kg. The weighed raw materials were put into a vacuum magnetic levitation melting furnace, and smelted repeatedly 4 times to prepare a 3 kg cylindrical alloy ingot. In the temperature range of 1150°C, the alloy ingot was forged freely with a 400kg air hammer, and it was forged into a billet, and continued to be forged with a forging die with a diameter of 15mm in the temperature range of 1150°C. In the temperature range of 1000 ° C, the bar is hot swaged, the feed rate of each pass is 0.5mm ~ 1mm, the total hot swaging passes are 15 to 30 times, and a return is performed after each pass. Fire, the final swaging wire size is 6mm. The hot swaging wire is hot-d...

Embodiment approach 2

[0019] First design the atomic percentage expression of the alloy composition as Al 0.3 CoCrFeNi, then convert the atomic percentage into a mass ratio, and weigh the raw materials with an electronic balance. The purity of each component raw material is greater than 99.9%, and the total weight of the raw materials is 3kg. The weighed raw materials were put into a vacuum magnetic levitation melting furnace, and smelted repeatedly 4 times to prepare a 3 kg cylindrical alloy ingot. In the temperature range of 1150°C, the alloy ingot was forged freely with a 400kg air hammer, and it was forged into a billet, and continued to be forged with a forging die with a diameter of 15mm in the temperature range of 1150°C. In the temperature range of 1000 ° C, the bar is hot swaged, the feed rate of each pass is 0.5mm ~ 1mm, the total hot swaging passes are 15 to 30 times, and a return is performed after each pass. Fire, the final swaging wire size is 6mm. The hot swaging wire is hot-drawn ...

Embodiment approach 3

[0021] First design the atomic percentage expression of the alloy composition as Al 0.3 CoCrFeNi, then convert the atomic percentage into a mass ratio, and weigh the raw materials with an electronic balance. The purity of each component raw material is greater than 99.9%, and the total weight of the raw materials is 3kg. The weighed raw materials were put into a vacuum magnetic levitation melting furnace, and smelted repeatedly 4 times to prepare a 3 kg cylindrical alloy ingot. In the temperature range of 1150°C, the alloy ingot was forged freely with a 400kg air hammer, and it was forged into a billet, and continued to be forged with a forging die with a diameter of 15mm in the temperature range of 1150°C. In the temperature range of 1000 ° C, the bar is hot swaged, the feed rate of each pass is 0.5mm ~ 1mm, the total hot swaging passes are 15 to 30 times, and a return is performed after each pass. Fire, the final swaging wire size is 6mm. The hot swaging wire is hot-drawn ...

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Abstract

The invention relates to an AlxCoCrFeNi multi-element alloy wire material and a preparation method thereof. The component atom expression of a multi-element alloy is AlxCoCrFeNi, wherein x is more than or equal to 0 and less than or equal to 0.5. A phase structure of the alloy takes a face-centered cubic solid solution as a main part. The preparation method of the AlxCoCrFeNi multi-element alloy wire material, disclosed by the invention, comprises the following steps of vacuum suspension smelting, die forging, rotary forging and hot drawing. A traditional rotary forging and drawing method can be used for preparing the multi-element alloy wire material with a certain diameter and random length; the production cost is low, the product performance is stable and the quality is high; and the application of the multi-element alloy wire material to the industrial field becomes possible.

Description

technical field [0001] The invention belongs to the field of metal material preparation, in particular to a hot drawn Al x CoCrFeNi multi-element alloy wire and its preparation method. Background technique [0002] (1) Multiple-Basis-Element Alloys (Multiple-Basis-ElementAlloys, MBE alloys) is a new type of material developed in recent years. Generally, multi-element alloys are considered to be alloyed by more than three alloying elements in an equiatomic or nearly equiatomic ratio, and their high mixing entropy can promote the formation of disordered multicomponent solid solutions. The solid solubility between the components is large, and the solvent component and the solute component in the solid solution cannot be distinguished, which is called a super solid solution. Research shows that at the same hardness level, the wear resistance of multi-element alloy is 3.6 times that of traditional wear-resistant steel; the radiation swelling rate is 95.8% lower than that of tra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C37/04C22C30/00
CPCB21C37/04C22C30/00
Inventor 张勇李冬月赵杨勇杨潇吕昭平
Owner UNIV OF SCI & TECH BEIJING
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