Solid solution device and method for improving strength and plasticity of in-situ synthesis aluminum matrix composite

An aluminum matrix composite material, an in-situ self-generating technology, applied in furnaces, heat treatment equipment, manufacturing tools, etc., can solve the problems of low heat treatment efficiency, slow thermal radiation heat transfer rate, and insufficient uniformity and stability of thermal field temperature, and achieves the Effects of grain growth, shortening of solution time, and increased elongation

Pending Publication Date: 2022-04-15
SHANGHAI JIAO TONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The temperature of a single thermal field is not uniform and stable enough, the heat transfer rate of heat radiation is slow, and the heat treatment efficiency is low

Method used

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  • Solid solution device and method for improving strength and plasticity of in-situ synthesis aluminum matrix composite
  • Solid solution device and method for improving strength and plasticity of in-situ synthesis aluminum matrix composite
  • Solid solution device and method for improving strength and plasticity of in-situ synthesis aluminum matrix composite

Examples

Experimental program
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Effect test

example 1

[0039] For extruded 3wt% TiB 2 / Al-Zn-Mg-Cu composite material is subjected to electric pulse assisted solid solution treatment, the specific steps are:

[0040] Step 1: Turn on the solid solution furnace 1, raise the temperature to the target temperature of 455°C±5°C, turn on the digital thermometer switch 4 to record the temperature change with time, keep it warm for 10 minutes, until the digital thermometer 4 displays the temperature and the solid solution furnace 1 set temperature same;

[0041] Step 2, put the sample 7 into the L-shaped copper fixture sample table 15, fasten the buckle 10, close the furnace door of the solution furnace 1 until the temperature returns to 455°C, and the process takes 2 to 3 minutes;

[0042] Step 3, turn on the pulse power supply 2 water cooling box to achieve heat dissipation effect, the voltage is 10.4V ~ 22V, the pulse form is bidirectional pulse, the duty cycle is 50%, adjust the pulse current 100A, pulse frequency 60Hz, power-on time ...

example 2

[0048] For extruded 3wt% TiB 2 / Al-Zn-Mg-Cu composite material is subjected to electric pulse assisted solid solution treatment, the specific steps are:

[0049] Step 1: Turn on solid solution furnace 1, raise the temperature to the target temperature of 455°C±5°C, turn on the digital thermometer 4 switch to record the temperature change with time, keep warm for 10 minutes, until the digital thermometer 4 displays the temperature and the solid solution furnace 1 set temperature same;

[0050] Step 2, put the sample 7 into the L-shaped copper fixture sample table 15, fasten the buckle 10, close the furnace door of the solution furnace 1 until the temperature returns to 455°C, and the process takes 2 to 3 minutes;

[0051] Step 3, turn on the pulse power supply 2 water cooling box to achieve heat dissipation effect, the voltage is 10.4V ~ 22V, the pulse form is bidirectional pulse, the duty cycle is 50%, adjust the pulse current 100A, pulse frequency 500Hz, power-on time 30min,...

example 3

[0057] For extruded 3wt% TiB 2 / Al-Zn-Mg-Cu composite material is subjected to electric pulse assisted solid solution treatment, the specific steps are:

[0058] Step 1: Turn on solid solution furnace 1, raise the temperature to the target temperature of 455°C±5°C, turn on the digital thermometer 4 switch to record the temperature change with time, keep warm for 10 minutes, until the digital thermometer 4 displays the temperature and the solid solution furnace 1 set temperature same;

[0059] Step 2, put the sample 7 into the L-shaped copper fixture sample table 15, fasten the buckle 10, close the furnace door of the solution furnace 1 until the temperature returns to 455°C, and the process takes 2 to 3 minutes;

[0060] Step 3, turn on the pulse power supply 2 water cooling box to achieve heat dissipation effect, the voltage is 10.4V ~ 22V, the pulse form is bidirectional pulse, the duty cycle is 50%, adjust the pulse current 200A, pulse frequency 200Hz, power-on time 30min,...

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Abstract

The invention discloses a solid solution device and method for improving the strength and plasticity of an in-situ synthesis aluminum-based composite material. The device comprises a solid solution furnace, a pulse power supply, an L-shaped copper clamp, an insulating platform, a digital temperature measurement platform and the like. According to the device, pulse parameters can be rapidly determined by recording the temperature change along with time in the electric pulse solid solution process, a pulse device is integrated, the device does not need to be disassembled in a repeated test, a sample can be replaced only by controlling a buckle, and the high-temperature sample can be conveniently subjected to water cooling in time after electric pulse solid solution. According to the method, the second phase in the in-situ synthesis aluminum-based composite material is basically dissolved into the matrix, and grain growth is inhibited; the ductility of the material can be improved after electric pulse solution treatment, and the tensile strength and the yield strength of the material are increased without decreasing; solution time is shortened, heat treatment efficiency is improved, and cost is saved.

Description

technical field [0001] The invention belongs to the technical field of metal heat treatment, and relates to a solid solution device and method for improving the strength and plasticity of in-situ self-generated aluminum-based composite materials, in particular to a method for improving the TiB 2 / Al-Zn-Mg-Cu composite material strength and plastic solid solution device and method. Background technique [0002] In situ self-generated TiB 2 / Al-Zn-Mg-Cu composite material is a method of in-situ reaction synthesis to generate high modulus TiB2 ceramic particles in the aluminum alloy melt, TiB 2 The particle size is finer, the shape is more regular, and the particle-matrix interface is well bonded. Compared with Al-Zn-Mg-Cu alloys, it has better comprehensive mechanical properties and machining properties. TiB 2 The traditional solid solution treatment of Al-Zn-Mg-Cu composite materials is to heat for a period of time above the initial melting temperature of the second phase...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/00C21D1/40C22F1/04C21D11/00
Inventor 罗仙慧陈剑李宇罡耿继伟陈东夏存娟王浩伟
Owner SHANGHAI JIAO TONG UNIV
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