Rolling preparation method for improving interface bonding strength of lamellar aluminum-titanium composite through nano-metal powder

A technology of nano-metal powder and interface bonding strength, which is applied in metal rolling and other directions, and can solve the problems of difficult control and difference in the interface bonding quality of metal composite plates

Active Publication Date: 2018-07-20
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Rolling cladding is a commonly used method. Generally, there are hot rolling cladding method and cold rolling cladding method. It is relatively difficult to control the interface bonding quality of metal clad plates prepared by these two methods. Such pro

Method used

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  • Rolling preparation method for improving interface bonding strength of lamellar aluminum-titanium composite through nano-metal powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: Preparation of pure titanium and pure aluminum composite strip

[0025] combine figure 1 ,Proceed as follows:

[0026] The first step: using industrial pure titanium strip 1 and industrial pure aluminum strip 2 as raw materials. The thicknesses of the industrial pure titanium strip 1 and the industrial pure aluminum strip 2 before rolling are 3mm respectively. The industrial pure titanium strip 1 and the industrial pure aluminum strip 2 are processed into exactly the same size 1m (length)×0.15m (width).

[0027] Step 2: surface-treat the industrial pure titanium strip 1 and the industrial pure aluminum strip 2 with a wire brush to remove surface oxides, and obtain the surface-treated titanium plate 1 and the surface-treated aluminum plate 5 respectively.

[0028] Step 3: evenly distribute the nanoparticles 4 on the surface of the surface-treated aluminum plate 5, the nanoparticles 4 are industrial pure aluminum nanoparticles, and the dosage is 20 grams....

application example 2

[0034] Application case 2: Preparation of pure titanium and AA6061 aluminum alloy composite strip

[0035] combine figure 1 ,Proceed as follows:

[0036] Step 1: replace the commercially pure aluminum strip 2 in Example 1 with the AA6061 aluminum alloy strip, and the thicknesses of the industrially pure titanium strip 1 and the AA6061 aluminum alloy strip before rolling are 2.5 mm, respectively. The industrial pure titanium strip 1 and the AA6061 aluminum alloy strip were processed into exactly the same size of 0.5m (length)×0.2m (width).

[0037] Step 2: surface-treat the commercially pure titanium strip 1 and the AA6061 aluminum alloy strip with a wire brush to remove surface oxides, and obtain the surface-treated titanium plate 1 and the surface-treated aluminum alloy plate respectively.

[0038] Step 3: Evenly distribute the nanoparticles 4 on the surface of the aluminum alloy plate after surface treatment, the nanoparticles 4 are aluminum oxide nanoparticles, and the do...

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Abstract

The invention provides a rolling preparation method for improving the interface bonding strength of a lamellar aluminum-titanium composite through nano-metal powder. According to the rolling preparation method, a titanium alloy strip material and an aluminum alloy strip material are machined to be at the same dimension, surface treatment is conducted so as to remove surface oxides, nanometer particles are arranged on the treated surfaces, stacking is conducted, so that a titanium/aluminum composite strip material is obtained, vacuum edge welding is conducted on the titanium/aluminum compositestrip material, a pulse current is exerted to the welded titanium/aluminum composite strip material so as to enable the nanometer particles and a local area of the surface of the composite strip material to conduct electric discharge, and surface metal is molten; then, rolling is conducted on the titanium/aluminum composite strip material, and material interface welding bonding is achieved; and finally, rolling continues until the total reduction rate of the strip material reaches 80%-95%. By the adoption of the rolling preparation method, the high-performance titanium/aluminum composite stripmaterial can be prepared. The plate material has the potential to be applied to the bulletproof protection field, the aerospace field, the sound insulation and noise reduction field, the automobile weight reduction field and the like. The rolling preparation method may be used for preparing composite strip materials composed of other nonferrous metal materials such as copper and magnesium in thefuture.

Description

technical field [0001] The invention belongs to the technical field of rolling metal composite materials, and in particular relates to a rolling preparation method for improving the interfacial bonding strength of layered aluminum-titanium composite materials by using nanometer metal powder. Background technique [0002] High-performance layered aluminum-titanium composite materials have been highly concerned by domestic and foreign counterparts in this field, and they have broad application prospects in the fields of bulletproof protection, aerospace, sound insulation and noise reduction, and automobile lightweight. The interface welding condition of layered composite materials during plastic deformation determines the mechanical and corrosion properties of the product. [0003] Traditional metal layered composite panels generally use the explosion method. However, the material interface quality is difficult to control. At the same time, this process is only suitable for ...

Claims

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Application Information

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IPC IPC(8): B21B1/38B21B9/00
Inventor 喻海良王琳杜青林
Owner CENT SOUTH UNIV
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