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High-entropy high-temperature manganese-based damping alloy material and preparation method thereof

A damping alloy, high temperature technology, applied in the field of design and preparation of high temperature damping alloy, can solve the problems of high cost and low damping performance, and achieve the effect of low manufacturing cost, high damping performance and easy realization

Active Publication Date: 2022-03-04
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, AlCoCrFeNi high-entropy alloy has stable damping performance at 100-400 °C, Tanδ can reach about 0.01, but the damping performance is low and the cost is high

Method used

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  • High-entropy high-temperature manganese-based damping alloy material and preparation method thereof
  • High-entropy high-temperature manganese-based damping alloy material and preparation method thereof
  • High-entropy high-temperature manganese-based damping alloy material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] In this embodiment, a high-entropy high-temperature manganese-based damping alloy material is a manganese-based parent material of Mn-18wt% Cu-3wt% Ni-2wt% Fe-25wt% Zn, calculated according to the mass percentage of the chemical elements of the component elements. alloy.

[0047] The preparation method of the high-entropy high-temperature manganese-based damping alloy material in this embodiment includes the following steps:

[0048] (1) Master alloy ingot preparation:

[0049]Put the raw materials of Mn-18wt%Cu-3wt%Ni-2wt%Fe-25wt%Zn in the crucible according to the proportion of alloying elements by weight, put them in a vacuum induction melting furnace and melt them, and pass argon protection during the melting period Atmosphere, induction heating to 1350°C for 60 minutes, so that the raw materials are fully melted and then cast and solidified to obtain master alloy ingots;

[0050] (2) heating the master alloy ingot prepared in the step (1) at 950° C., and then hot...

Embodiment 2

[0054] This embodiment is basically the same as Embodiment 1, and the special features are:

[0055] In this embodiment, a high-entropy high-temperature manganese-based damping alloy material is a manganese-based parent material of Mn-21wt% Cu-8wt% Ni-1wt% Fe-20wt% Zn, calculated according to the mass percentage of the chemical elements of the component elements. alloy.

[0056] The preparation method of the high-entropy high-temperature manganese-based damping alloy material in this embodiment includes the following steps:

[0057] (1) Master alloy ingot preparation:

[0058] Put the raw materials of Mn-21wt% Cu-8wt% Ni-1wt% Fe-20wt% Zn in the proportion of alloying elements by weight percentage in a crucible, put it in a vacuum induction melting furnace and melt it, and pass argon protection during the melting period Atmosphere, induction heating to 1450°C for 30 minutes, so that the raw materials are fully melted and then cast and solidified to obtain master alloy ingots;...

Embodiment 3

[0063] This embodiment is basically the same as the previous embodiment, and the special features are:

[0064] In this embodiment, a high-entropy high-temperature manganese-based damping alloy material is a manganese-based parent material of Mn-20wt% Cu-5wt% Ni-2wt% Fe-23wt% Zn, calculated according to the mass percentage of the chemical elements of the component elements. alloy.

[0065] The preparation method of the high-entropy high-temperature manganese-based damping alloy material in this embodiment includes the following steps:

[0066] (1) Master alloy ingot preparation:

[0067] Put the alloying elements in a crucible with the distribution ratio of Mn-20wt% Cu-5wt% Ni-2wt% Fe-23wt% Zn by weight, and put it in a vacuum induction melting furnace for melting, and pass argon protection during the melting Atmosphere, induction heating to 1400°C for 40 minutes, so that the raw materials are fully melted and then cast and solidified to obtain master alloy ingots;

[0068]...

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Abstract

The invention discloses a high-entropy high-temperature manganese-based damping alloy material and a preparation method thereof, and the alloy material comprises the following chemical element components in percentage by mass: 18-23 wt.% of Cu; 3 to 8 wt.% of Ni; 1 to 3 wt.% of Fe; %, 20 to 25 wt.% of Zn; and the balance of Mn and other inevitable impurities. According to the high-entropy manganese-based alloy, the high-entropy effect is fully exerted, the damping performance of the alloy at the high temperature is improved, the high-entropy manganese-based alloy has the high damping performance within the high-temperature range of 400-700 DEG C, and the high-entropy manganese-based alloy can be suitable for vibration noise control under the complex and high-temperature environment conditions. The damping alloy is simple in component and low in manufacturing cost.

Description

technical field [0001] The invention belongs to the field of metal functional materials, and specifically relates to the design and preparation of a high-entropy high-temperature damping alloy. The MnZnCuNiFe alloy prepared by the invention is suitable for 400-700°C and can be widely used in aerospace, transportation, and engines. Engineering fields such as vibration reduction and noise reduction. Background technique [0002] The vibration and noise generated during the operation of mechanical equipment will not only lead to fatigue of mechanical component materials, failure of electronic devices, instrumentation failure, etc., but also have a negative impact on human health. The method of using additional vibration reduction and sound insulation devices is a typical case of starting the machine design from the source, but this design will inevitably increase the weight and cost of the machine. Damping alloy has the physical characteristics of converting mechanical vibrati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C22/00C22C30/06C22C1/02C22F1/16
CPCC22C22/00C22C30/06C22C30/02C22C1/02C22F1/16C22F1/002Y02P10/25
Inventor 田青超牛红康
Owner SHANGHAI UNIV