A rolling (feconicrr n /al)-2024al composite plate and its preparation method

A composite sheet and composite material technology, applied in the direction of metal rolling, etc., can solve the problems of limited application scope and low ductility

Active Publication Date: 2021-11-23
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Low ductility and localized susceptibility to breaking severely limit its range of applications

Method used

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  • A rolling (feconicrr <sub>n</sub> /al)-2024al composite plate and its preparation method
  • A rolling (feconicrr <sub>n</sub> /al)-2024al composite plate and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Preparation of medium entropy alloy powder: the reinforcing base is FeCoNiCrC 0.2 For medium-entropy alloys, according to the ratio of atomic number 1:1:1:1:0.2, calculate and weigh the corresponding mass of powder, put the mixed powder in the ball mill jar, vacuumize and pass in argon, and then high-energy Ball milling for mechanical alloying. The parameters of ball milling are as follows: the mass ratio of ball to material is 12:1, dry milling for 30 hours at a speed of 150 r / min, and then adding absolute ethanol as a process control agent, wet milling for 12 hours at a speed of 300 r / min. Dry for 60h to obtain high entropy alloy powder.

[0030] (2) Preparation of composite powder: the high-entropy alloy powder particles and pure aluminum powder are mixed, and the addition amount of the high-entropy alloy powder particles of the reinforcing phase is 20% by mass fraction. The composite powder is obtained by ball milling with a ball mill, and the ball milling is ...

Embodiment 2

[0036] (1) Preparation of medium entropy alloy powder: the reinforcing base is FeCoNiCrC 0.5 For medium-entropy alloys, according to the ratio of atomic number 1:1:1:1:0.5, calculate and weigh the corresponding mass of powder, put the mixed powder in the ball mill jar, vacuumize and pass in argon, and then high-energy Ball milling for mechanical alloying. The parameters of ball milling are as follows: the mass ratio of ball to material is 12:1, dry milling for 30 hours at a speed of 150 r / min, and then adding absolute ethanol as a process control agent, wet milling for 12 hours at a speed of 300 r / min. Dry for 60h to obtain high entropy alloy powder.

[0037] (2) Preparation of composite powder: the high-entropy alloy powder particles and pure aluminum powder are mixed, and the addition amount of the high-entropy alloy powder particles of the reinforcing phase is 20% by mass fraction. The composite powder is obtained by ball milling with a ball mill, and the ball milling is ...

Embodiment 3

[0043] (1) Preparation of medium entropy alloy powder: the reinforcing base is FeCoNiCrB 0.5 For medium-entropy alloys, according to the ratio of atomic number 1:1:1:1:0.5, calculate and weigh the corresponding mass of powder, put the mixed powder in the ball mill jar, vacuumize and pass in argon, and then high-energy Ball milling for mechanical alloying. The parameters of ball milling are as follows: the mass ratio of ball to material is 12:1, dry milling for 30 hours at a speed of 150 r / min, and then adding absolute ethanol as a process control agent, wet milling for 12 hours at a speed of 300 r / min. Dry for 60h to obtain high entropy alloy powder.

[0044] (2) Preparation of composite powder: the high-entropy alloy powder particles and pure aluminum powder are mixed, and the addition amount of the high-entropy alloy powder particles of the reinforcing phase is 20% by mass fraction. The composite powder is obtained by ball milling with a ball mill, and the ball milling is ...

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Abstract

The invention provides a rolled (FeCoNiCrR n / Al)-2024Al composite plate material and preparation method thereof, the composite material is based on pure aluminum, and FeCoNiCrR with high strength and toughness is added n The medium entropy alloy is the strengthening item, and then FeCoNiCrR n / Al composite material and 2024 aluminum alloy laminated rolling compound, obtained (FeCoNiCrR n / Al)‑2024Al composite sheet solves the problems of high-strength aluminum-based composite materials that are prone to instantaneous fracture and low ductility to improve the overall performance of the material. The present invention adopts microwave sintering technology to prepare medium-entropy alloy reinforced aluminum-based composite material, and utilizes hot-rolled composite preparation (FeCoNiCrR n / Al)‑2024Al metal composite sheet. The composite plate material prepared by the invention has excellent comprehensive mechanical properties, and has high application value for promoting the application of modern lightweight and high-efficiency industrial materials such as aerospace and new energy vehicles.

Description

technical field [0001] The invention belongs to the field of composite plate preparation, and relates to a method for preparing a rolled aluminum alloy / aluminum-based composite material composite plate, in particular to a (FeCoNiCrR n / Al)-2024Al composite plate and its preparation method. Background technique [0002] Due to the introduction of reinforcements, traditional particle-reinforced aluminum matrix composites have excellent properties such as high strength, high wear resistance, high specific modulus, and high dimensional stability. Wide range of applications. The low ductility and local susceptibility to breaking severely limit its application range. Therefore, the development of a composite sheet with both the high strength of aluminum matrix composites and the good plasticity of aluminum alloys has received widespread attention, further improving its application potential. [0003] The new type of medium entropy alloy is obtained by alloying two to four main ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22C1/04B22F9/04B22F3/105B22F7/04B22F3/18B21B1/38
CPCC22C21/00C22C1/0416B22F9/04B22F3/105B22F7/04B22F3/18B21B1/38B22F2009/041B22F2009/043B22F2003/1054B22F2007/042B21B2001/386B23K20/04B23P17/00B21B2001/383B23K2101/18B23K2103/18B23K2103/10B23K20/2336B23K20/24B22F2003/185B22F2998/10B22F2999/00B22F2201/11B22F3/14B22F3/24
Inventor 王宏明任文祥李桂荣
Owner JIANGSU UNIV
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