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A magnetic (feconi 1.5 cub m re n ) p /al composite material and preparation method thereof

A composite material and magnetic technology, which is applied in the field of magnetic P/Al composite materials and its preparation, can solve the problems of poor bonding between reinforcing particles and the matrix interface, achieve small grain structure, wide application fields, and improve the effect of toughness

Active Publication Date: 2021-01-15
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a kind of magnetic high entropy alloy particle reinforced aluminum matrix composite material and preparation method thereof, i.e. magnetic (FeCoNi 1.5 CuB m RE n ) P / Al composite material, to overcome the problem of poor bonding between the reinforcing particles and the matrix interface, while maintaining the strength and toughness of the material, the composite material also has good magnetic properties

Method used

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  • A magnetic (feconi <sub>1.5</sub> cub <sub>m</sub> re <sub>n</sub> ) <sub>p</sub> /al composite material and preparation method thereof
  • A magnetic (feconi <sub>1.5</sub> cub <sub>m</sub> re <sub>n</sub> ) <sub>p</sub> /al composite material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0042] The rare earth element in the reinforced particles is Nd, and the molecular formula of the reinforced particles is: FeCoNi 1.5 CuB 0.5 Nd.

[0043] Magnetic (FeCoNi 1.5 CuB 0.5 The preparation method of Nd)P / Al composite material comprises the step of preparing high-entropy alloy powder, the step of preparing composite powder, the step of cold isostatic pressing, and the step of sintering and solidification:

[0044] (1) Steps for preparing high-entropy alloy powder: FeCoNi is selected as the reinforcing base 1.5 CuB 0.5 Nd high-entropy alloy, according to the ratio of atomic number 1:1:1.5:1:0.5:1, calculate and weigh the corresponding mass of metal powder, put the mixed powder in the ball mill tank, vacuumize and pass in argon gas, and then mechanically alloyed by high-energy ball milling; the ball milling parameters are: the mass ratio of balls to materials is 12:1, first dry milling for 30 hours, and the speed is 150r / min, then add absolute ethanol as a process...

Embodiment 2

[0051] The reinforcing base is FeCoNi 1.5 CuB 0.5 Nd high entropy alloy, the matrix phase is aluminum alloy. The preparation method of the composite material is as follows:

[0052] (1) Steps for preparing high-entropy alloy powder: FeCoNi is selected as the reinforcing base 1.5 CuB 0.5 Nd high-entropy alloy, according to the ratio of atomic number 1:1:1.5:1:0.5:1, calculate and weigh the corresponding mass of metal powder, put the mixed powder in the ball mill tank, vacuumize and pass in argon gas, and then mechanically alloyed by high-energy ball milling. The ball milling parameters are as follows: dry milling for 35 hours at a speed of 250r / min, then add absolute ethanol as a process control agent, wet milling for 16 hours, and dry for 55 hours to obtain high-entropy alloy powder.

[0053] (2) Step of preparing composite powder: mix the high-entropy alloy powder particles and ZL101 aluminum alloy powder according to the addition amount of the reinforcing phase as 10% by...

Embodiment 3

[0058] The reinforcing base is FeCoNiCuB 1.25 Y 0.7 Nd 0.3 High entropy alloy, the matrix phase is aluminum alloy. The preparation method is:

[0059] (1) Steps for preparing high-entropy alloy powder: FeCoNiCuB is selected as the reinforcing base 1.25 Y 0.7 Nd 0.3 For high-entropy alloys, according to the ratio of atomic number 1:1:1:1:1.25:0.7:0.3, calculate and weigh the corresponding mass of metal powder, put the mixed powder in the ball mill tank, vacuumize and pass into Argon, then mechanically alloyed by high-energy ball milling; the ball milling parameters are: mass ratio of ball to material is 12:1, first dry milling for 30 hours, speed 150r / min, then add absolute ethanol as a process control agent, wet milling for 12 hours, speed 250r / min ; Dry for 45h to obtain high entropy alloy powder.

[0060] (2) The step of preparing composite powder: mix the high-entropy alloy powder particles and 6063 aluminum alloy powder according to the addition amount of the reinfo...

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Abstract

The invention provides magnetic (FeCoNi1.5CuBmREn)p / Al composite material and a preparation method thereof. The composite material uses pure aluminum or aluminum alloy as a matrix, FeCoNi1.5CuBmREn high-entropy alloy is added to serve as a reinforced particle composite phase, so that the performance is enhanced and the material is endowed with magnetism; and the addition amount of the FeCoNi1.5CuBmREn high-entropy alloy composite phase accounts for 5-20% of the total mass fraction of the material. The preparation method of the composite material comprises the following steps that firstly, high-entropy alloy powder is prepared; high-entropy alloy and aluminum or aluminum alloy composite powder is prepared; cold isostatic pressing molding is carried out; and finally, microwave sintering and curing is carried out. The composite material prepared by the preparation method has high toughness and excellent magnetic property, and has very high application values in the traditional and emerging fields of electronic, computer, information communication, medical, aerospace, automobile, wind power, environment-friendly and energy-saving aspect and the like.

Description

technical field [0001] The invention belongs to the field of composite material preparation, and relates to a method for preparing particle-reinforced aluminum-based composite materials, in particular to a magnetic (FeCoNi 1.5 CuB m RE n ) P / Al composite material and its preparation method. Background technique [0002] Particle-reinforced aluminum-based composites are based on metallic aluminum and its alloys, reinforced with metal or non-metallic particles; the heterogeneous mixture of phases. Particle-reinforced aluminum-based composites have high specific strength, high specific modulus, and wear resistance. And excellent performance such as good dimensional stability. [0003] However, due to the poor bonding effect of the ceramic particle / aluminum interface, the plasticity and toughness potential of the ceramic particle reinforced aluminum matrix composite cannot be fully utilized; how to obtain good plasticity and toughness while improving the strength of the com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C1/04C22C21/00B22F9/04B22F3/04B22F3/105
CPCB22F3/04B22F3/105B22F9/04B22F2003/1054B22F2009/042B22F2009/043C22C1/0416C22C21/00C22C2202/02
Inventor 王宏明任文祥李桂荣王长文刘明陈佳佳
Owner JIANGSU UNIV