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High entropy alloy feeding and preparation method and application thereof

A high-entropy alloy and feeding technology, which is applied in metal processing equipment, transportation and packaging, etc., can solve the problems of high-entropy alloy introduction

Inactive Publication Date: 2017-09-22
KUNSHAN KADAM NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no one has introduced high-entropy alloys into the metal injection molding process in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The present embodiment prepares the high-entropy alloy feeding material according to the following method:

[0050] (1) Mix the high-entropy alloy mixed powder with the particle size of D10, D50 and D90 respectively 5 μm, 11 μm and 25 μm with the polymer binder evenly, wherein the loading of the mixed powder is 63vol%, and the loading of the polymer binder The amount is 37vol%; the high-entropy alloy is a five-main element system: Al-Co-Cr-Fe-Ni; the polymer binder is composed of 84wt% polyoxymethylene, 6wt% high-density polyethylene, 6wt% ethylene- Composition of vinyl acetate copolymer, 3.5wt% stearic acid and 0.5wt% antioxidant B215;

[0051] (2) Place the mixture of the high-entropy alloy mixed powder and the polymer binder obtained in step (1) in a kneader, knead at 165°C for 1.5h, and the speed of the kneader at the initial stage of kneading is 15r / h min, after the polymer binder is melted, the speed of the kneader is controlled to be 25r / min, and the high-entrop...

Embodiment 2

[0059] The present embodiment prepares the high-entropy alloy feeding material according to the following method:

[0060] (1) Mix the high-entropy alloy mixed powder with the particle size of D10, D50 and D90 respectively 5 μm, 11 μm and 25 μm with the polymer binder evenly, wherein the loading of the mixed powder is 63vol%, and the loading of the polymer binder The amount is 37vol%; the high-entropy alloy is a five-main element system: Al-Co-Cr-Fe-Ni; the polymer binder is composed of 84wt% paraffin wax and carnauba wax (the ratio of the two is arbitrary), 12wt% Polystyrene, 2wt% stearic acid and 2wt% polyethylene wax composition;

[0061] (2) Put the mixture of high-entropy alloy mixed powder and polymer binder obtained in step (1) in a kneader, knead at 175°C for 1 hour, and the speed of the kneader at the initial stage of kneading is 20r / min After the polymer binder is melted, the speed of the kneader is controlled to be 30r / min, and the high-entropy alloy feed is obtain...

Embodiment 3

[0069] The present embodiment prepares the high-entropy alloy feeding material according to the following method:

[0070](1) Mix the high-entropy alloy mixed powder with the particle size of D10, D50 and D90 respectively 5 μm, 11 μm and 25 μm with the polymer binder evenly, wherein the loading of the mixed powder is 70vol%, and the loading of the polymer binder The amount is 30vol%; the high-entropy alloy is a six-main element system: Fe-Cr-Mo-Ti-Mn-Cu; the polymer binder is composed of 60wt% polyethylene glycol, 6wt% polyethylene glycol Acrylic resin, 25.5wt% polyvinyl butyral, 5.5wt% polyethylene terephthalate, 2.5wt% stearic acid and 0.5wt% antioxidant B215 composition;

[0071] (2) Place the mixture of the high-entropy alloy mixed powder and polymer binder obtained in step (1) in a kneader, knead at 170°C for 1.2h, and the speed of the kneader at the initial stage of kneading is 10r / h min, after the polymer binder is melted, the speed of the kneader is controlled to 20r / ...

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Abstract

The invention relates to a high entropy alloy feeding and a preparation method and an application thereof. The high entropy alloy feeding comprises, by volume, 40%-70% of high entropy alloy powder, and 30%-60% of high molecular binder. The high entropy alloy feeding has the excellent properties of the high entropy alloy so that the high entropy alloy can be introduced in a metal injection molding technology, and application range of the high entropy alloy is expanded. According to the high entropy alloy feeding and the preparation method and the application thereof, the high entropy alloy feeding is applied to the metal injection molding technology, product stability during the injection molding process can be improved, the high entropy alloy product obtained has more than 97.5% of sintered density, production of high entropy alloy components and parts with complex production structures, excellent properties and high precision requirements is achieved beneficially. The high entropy alloy feeding has good economic benefit and application prospect.

Description

technical field [0001] The invention relates to the field of metal material body preparation, in particular to a high-entropy alloy feed material and its preparation method and application. Background technique [0002] The traditional theory holds that when the alloy has more principal elements, it is easier to form intermetallic compounds, which makes the structure of the alloy more complex, and then significantly affects the performance of the alloy. The emergence of high-entropy alloys broke this traditional view. High-entropy alloys have the characteristics of simplified microstructure, no tendency to appear intermetallic compounds, nano-precipitates and amorphous structures, and then obtain excellent properties such as high strength, high hardness, resistance to temper softening, and wear resistance. As a result, high-entropy alloys have attracted widespread attention once they appeared, and their applications have become more and more extensive. [0003] Traditional...

Claims

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Application Information

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IPC IPC(8): B22F1/00B22F3/115C22C1/05
CPCC22C1/05B22F3/115B22F1/103B22F1/10
Inventor 侯春树周龙金侯文洁
Owner KUNSHAN KADAM NEW MATERIAL TECH CO LTD
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