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Abrasion-resistant and corrosion-resistant MnNbTaTiV high-entropy alloy material and preparation method thereof

A high-entropy alloy and corrosion-resistant technology, which is applied in the field of MnNbTaTiV high-entropy alloy and its preparation, can solve the problems of limiting the diversification of alloy types and other problems, and achieve the effects of low cost, uniform alloy structure and simple preparation process

Inactive Publication Date: 2019-03-26
XIANGTAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This has allowed people to accumulate a large amount of alloy knowledge based on one or two main elements, but little is known about new alloys containing multiple components in close to equimolar ratios, which limits the space for the development of alloy types to diversify

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  • Abrasion-resistant and corrosion-resistant MnNbTaTiV high-entropy alloy material and preparation method thereof
  • Abrasion-resistant and corrosion-resistant MnNbTaTiV high-entropy alloy material and preparation method thereof
  • Abrasion-resistant and corrosion-resistant MnNbTaTiV high-entropy alloy material and preparation method thereof

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Embodiment Construction

[0022] The preparation method and process performance of the present invention are illustrated by specific specific examples below, and those skilled in the art can fully understand the advantages and functions of the present invention from the contents disclosed in this specification.

[0023] 1. MnNbTaTiV high entropy alloy composition design

[0024] This embodiment is a MnNbTaTiV high-entropy alloy composed of five elements: Mn, Nb, Ta, Ti, and V, wherein Mn:Nb:Ta:Ti:V is in an equimolar ratio.

[0025] 2. Preparation of MnNbTaTiV high entropy alloy

[0026] Concrete preparation process is as follows:

[0027] 1) raw material preparation: the alloy smelting raw material that the present invention adopts is high-purity (purity is more than 99.5%) Mn, Nb, Ta, Ti, V metal powder;

[0028] 2) Weighing and mixing powder: Carry out accurate weighing and mixing ratio according to the molar ratio, and mix the weighed powder materials together, and use a V-type powder mixing mach...

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Abstract

The invention relates to an abrasion-resistant and corrosion-resistant high-entropy alloy material and a preparation method thereof. The preparation process of the MnNbTaTiV high-entropy alloy material includes the following steps that (1) power of all metals is prepared according to the equimolar ratio; (2) the power is mixed uniformly through a powder mixer; (3) the mixed powder is put in a vacuum drying oven to be dried; (4) dried powder is subjected to cold pressing and forming under a press machine; and (5) pressed and blocky samples are smelted through a nonconsumable vacuum arc smeltingfurnace. The prepared MnNbTaTiV high-entropy alloy is of a simplex BCC structure, has the advantages of being high in hardness and corrosion resistance and the like and has excellent application prospects in the field of abrasion resistance and corrosion resistance.

Description

technical field [0001] The invention belongs to the technical field of alloy materials and their preparation, and specifically provides a wear-resistant and corrosion-resistant MnNbTaTiV high-entropy alloy and a preparation method thereof. The alloy is suitable for the wear-resistant and corrosion-resistant fields. Background technique [0002] The definition of a traditional alloy is: a substance with metallic properties obtained from two or more metals (or metals and nonmetals) through a certain method. The development experience of traditional alloys tells us that adding more types of alloying elements is easy to form compounds, especially brittle intermetallic compounds, which will increase the brittleness of the alloy. In addition, this also makes it difficult to analyze the composition and structure of the alloy, so it is generally believed that the fewer types of alloying elements added, the better. This has allowed people to accumulate a large amount of alloy knowle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/02C22C30/00
CPCC22C1/02C22C30/00
Inventor 许艳飞欧阳豪唐佳毅肖逸锋吴靓欧艳张乾坤贾友禄
Owner XIANGTAN UNIV
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