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Non-equiatomic ratio high-entropy alloy and method for preparing wire using the same

A high-entropy alloy and atomic ratio technology, applied in the field of metal materials and their preparation, can solve the problems of uneven composition of high-entropy alloy, long cycle, complex preparation method, etc., and achieve excellent wire forming ability, simple preparation process and cost. reduced effect

Active Publication Date: 2021-10-19
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the known preparation method of high-entropy alloy wire is found by searching the existing technical documents. Stranded wire, its application and preparation method, the high-entropy alloy stranded wire is conducive to promoting the engineering application of high-entropy alloys in the field of additive manufacturing, but there is the possibility of inhomogeneity in the composition of high-entropy alloys
The Chinese patent announcement number is: CN109234601A, the announcement date is: 2019.01.18, and the title of the invention is: a high-entropy alloy solid wire for arc cladding and its preparation method. The high-entropy alloy wire is prepared by mechanical alloy Chemical technology, and then use spray deposition molding technology to prepare alloy ingots, and then cryogenically draw the alloy. This preparation method is more complicated and the cycle is long.

Method used

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  • Non-equiatomic ratio high-entropy alloy and method for preparing wire using the same
  • Non-equiatomic ratio high-entropy alloy and method for preparing wire using the same
  • Non-equiatomic ratio high-entropy alloy and method for preparing wire using the same

Examples

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Effect test

Embodiment 1

[0026] Alloy composition design and preparation

[0027] A non-isoatomic ratio high-entropy alloy Fe a mn b Cr c Ni d , a, b, c, d respectively represent the atomic percentage of the corresponding metal element, a=35, b=10, c=20, d=35.

[0028] Non-equiatomic ratio high-entropy alloy wire, its preparation method comprises the following steps:

[0029] (1) According to Fe 35 mn 10 Cr 20 Ni 35 Preparation of bulk metal particles containing Fe, Mn, Cr, Ni;

[0030] (2) repeatedly smelting the metal block particles prepared in step (1) at least 3 times in a vacuum induction melting furnace to ensure the uniformity of the alloy composition;

[0031] (3) Cast the alloy smelted in step (2) into an ingot, set the temperature at 1000° C. for 12 hours in a high-temperature heat treatment furnace for homogenization treatment, and then take out the water and quench to normal temperature;

[0032] (4) performing hot swaging on the homogenized heat-treated alloy ingot in step (3) ...

Embodiment 2

[0036] Alloy composition design and preparation

[0037] A non-isoatomic ratio high-entropy alloy, Fe a mn b Cr c Ni d , a, b, c, d respectively represent the atomic percentage of the corresponding metal element, a=35, b=10, c=20, d=35.

[0038] Non-equiatomic ratio high-entropy alloy wire, its preparation method comprises the following steps:

[0039] (1) According to Fe 35 mn 10 Cr 20 Ni 35 Preparation of bulk metal particles containing Fe, Mn, Cr, Ni;

[0040] (2) repeatedly smelting the metal block particles prepared in step (1) at least 3 times in a vacuum induction melting furnace to ensure the uniformity of the alloy composition;

[0041] (3) Cast the alloy smelted in step (2) into an ingot, set the temperature at 1000° C. for 12 hours in a high-temperature heat treatment furnace for homogenization treatment, and then take out the water and quench to normal temperature;

[0042] (4) performing hot swaging on the homogenized heat-treated alloy ingot in step (3)...

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Abstract

The invention belongs to the technical field of high-entropy alloy wire and its preparation, and discloses a non-isoatomic ratio high-entropy alloy, wire and a preparation method thereof. The preparation raw materials are Fe, Mn, Cr, and Ni metal particles, and the preparation method is as follows: The above-mentioned metal particles are weighed according to the set ratio, melted and poured in a vacuum induction melting furnace, and prepared into a non-isoatomic ratio high-entropy alloy ingot; Then it is hot swiveled into a rod, then rolled by an end mill, annealed at high temperature, and drawn in multiple passes to obtain a wire. The preparation process of the non-isoatomic ratio high-entropy alloy wire prepared by the invention is simple, and no intermediate annealing treatment and surface treatment are interspersed in the wire drawing process, which greatly simplifies the production process of the wire.

Description

technical field [0001] The invention belongs to metal materials and preparation techniques thereof, and in particular relates to a non-equiatomic ratio high-entropy alloy, its wire material and a preparation method thereof. Background technique [0002] The design concept of traditional metal alloys has always been based on one or two elements as the main component, such as iron-based, aluminum-based, copper-based, magnesium-based alloys, etc., and a small amount of other elements are used to improve performance. In traditional alloys, the performance of the alloy is usually changed by adding a small amount of certain elements. For example, the decorative material aluminum alloy that is often used in life, aluminum is the main element, and a small amount of elements such as magnesium, zinc, and copper are added to the alloy to make the alloy have higher strength. The steel materials such as tool steel, stainless steel, and spring steel currently used are mainly obtained by ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C30/00C22C1/02C22F1/00B21C37/04
CPCB21C37/047C22C1/02C22C30/00C22F1/00
Inventor 廖恒成周军陈浩
Owner SOUTHEAST UNIV
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