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Multi-principle-element alloy and method thereof for processing surface of aluminum alloy

A multi-principal element alloy and aluminum alloy surface technology, applied in metal material coating process, coating, fusion spraying, etc., can solve problems such as joint interface cracks and cracks, and achieve uniform fusion, porosity reduction, and improved bonding Effect of Strength and Intrinsic Quality of Coatings

Active Publication Date: 2016-03-30
ZHOUSHAN HECHENG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of ceramic powder to improve the wear resistance of aluminum alloys cannot essentially solve the problem of cracks and cracks at the bonding interface caused by high melting point ceramic layers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 1. A multi-principal alloy, in molar fractions, comprising the following components: 14 parts of Co, 16 parts of Cr, 1 part of Al, 20 parts of Si, 20 parts of Fe, 5 parts of Ti, 19 parts of Mn, 2 parts of B , 3 servings of La.

[0019] Two, the above-mentioned multi-principal alloy is used for the method for aluminum alloy surface treatment, comprises the following steps:

[0020] 1) Clean the ZL102 aluminum alloy substrate with acetone; in order to improve the bonding strength between the multi-principal alloy coating and the aluminum alloy substrate, after cleaning, perform sandblasting roughening treatment.

[0021] 2) Use plasma spraying equipment to spray the proportioned multi-principal alloy powder on the surface of the aluminum alloy substrate treated in step 1); wherein, the particle size of the multi-principal alloy powder is -200~+350 mesh; spraying Argon protection is carried out during the process, and the thickness is 0.3mm.

[0022] 3) Adopt TJ-HL-T5000...

Embodiment 2

[0025] 1. A multi-principal alloy, in molar fractions, comprising the following components: 14 parts of Co, 16 parts of Cr, 1 part of Al, 20 parts of Si, 20 parts of Fe, 5 parts of Ti, 19 parts of Mn, 2 parts of B , 3 servings of La.

[0026] Two, the above-mentioned multi-principal alloy is used for the method for aluminum alloy surface treatment, comprises the following steps:

[0027] 1) Clean the 6061 deformed aluminum alloy substrate with absolute ethanol; after cleaning, perform sandblasting and roughening treatment.

[0028] 2) Use plasma spraying equipment to spray the proportioned multi-principal alloy powder on the surface of the aluminum alloy substrate treated in step 1); wherein, the particle size of the multi-principal alloy powder is -200~+350 mesh; spraying Argon protection is carried out during the process, and the thickness is 0.3mm.

[0029] 3) Adopt TJ-HL-T5000 type CO with maximum power of 5kW 2 The laser remelts the plasma sprayed surface treated in st...

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Abstract

The invention discloses multi-principle-element alloy and a method thereof for processing the surface of aluminum alloy. The alloy is prepared from, by molfraction, 14-22 parts of Co, 14-22 parts of Cr, 1-3 parts of Al, 14-22 parts of Si, 14-22 parts of Fe, 1-10 parts of Ti, 14-22 parts of Mn, 1-3 parts of B and 1-3 parts of La. The method includes the steps that an aluminum alloy substrate is firstly cleaned and subjected to sand blasting, multi-principle-element alloy powder is sprayed on the surface of the aluminum alloy substrate through a plasma spraying device, finally the plasma sprayed surface is remelted through a CO2 laser device, and then the multi-principle-element alloy is prepared. The characteristics of the high- entropy effect, the slow diffusion effect, nano phase strengthening, super-high lattice distortion and the 'cocktail effect' of the multi-principle-element alloy are utilized for a multi-principle-element alloy coating, high tenacity of the alloy can be easily kept, and the prepared coating has the beneficial effects of being high in strength, resistant to abrasion and the like.

Description

technical field [0001] The invention belongs to the technical field of material surface treatment and strengthening, and in particular relates to a multi-principal alloy and a method for surface treatment of aluminum alloys. Background technique [0002] Aluminum and aluminum alloys are one of the most widely used materials in non-ferrous metals. Aluminum alloys have many excellent properties such as low density, easy processing, low thermal expansion coefficient, high thermal conductivity, high specific stiffness and specific strength; therefore, in daily production and life And aviation, automobiles, high-speed rail, engine pistons, optical instruments, missile mosaic structures and other fields have been widely used. However, with the further development of industrial production, higher requirements are placed on the surface properties of aluminum alloys, and wear resistance is particularly important. [0003] At present, the method of preparing wear-resistant coatings...

Claims

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Application Information

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IPC IPC(8): C22C30/00C23C4/06C23C4/134C23C4/18
CPCC22C19/07C22C22/00C22C27/06C22C30/00C22C38/005C22C38/02C22C38/04C22C38/06C22C38/10C22C38/14C22C38/18C22C38/32C23C4/06C23C4/18
Inventor 黄灿涂坚刘承鑫柴林江黄福祥周志明
Owner ZHOUSHAN HECHENG MACHINERY
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