Preparation method and application of aluminum-based light high-entropy alloy metal powder cored welding wire

A metal powder core and high-entropy alloy technology, applied in metal processing equipment, welding equipment, welding media, etc., can solve the problems of expensive powder, high price, and inability to prepare large components, and achieve good hardness, uniform chemical composition and structure Effect

Inactive Publication Date: 2022-02-01
SHANGHAI LONGSHUO WELDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such as selective laser melting technology and electron beam melting technology, not only the powder is expensive, but the equipment is also expensive, and it is impossible to prepare large components

Method used

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  • Preparation method and application of aluminum-based light high-entropy alloy metal powder cored welding wire
  • Preparation method and application of aluminum-based light high-entropy alloy metal powder cored welding wire
  • Preparation method and application of aluminum-based light high-entropy alloy metal powder cored welding wire

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] An aluminum-based lightweight high-entropy alloy metal powder-cored welding wire, the chemical composition of which includes: Al: 10.688%, Co: 23.345%, Cr: 20.597%, Fe: 22.121%, Ni: 23.250%.

[0028] Further, its preparation method specifically includes the following steps:

[0029] S1, first weigh 40.833 grams of Co powder, 36.027 grams of Cr powder, 38.694 grams of Fe powder, and 40.667 grams of Ni powder. The above-mentioned powders are all high-purity (purity ≥ 99.99%) metal powders, followed by weighing 4.687 grams of ethanol process control agent;

[0030]S2. Put the weighed high-purity metal powder and process control agent into the ball mill tank, and at the same time put stainless steel balls into the ball-to-material ratio of 10:1, and fully ball mill for 20 hours until the metal powder is alloyed;

[0031] S3, cold rolling the pure aluminum strip to 0.1mm, then cutting it into 7mm wide, and rolling it into a U-shaped groove, filling the above-mentioned alloy ...

Embodiment 2

[0034] An Al-based lightweight high-entropy alloy metal powder-cored welding wire, the chemical composition of which includes: Al: 32.372%, Co: 17.677%, Cr: 15.596%, Fe: 16.751%, Ni: 17.605%.

[0035] Further, its preparation method specifically includes the following steps:

[0036] S1, first weigh 60.760 grams of Co powder, 53.608 grams of Cr powder, 57.576 grams of Fe powder, 6.512 grams of Ni powder, and the above powders are all high-purity (purity ≥ 99.99%) metal powders; secondly, weigh 6.97 grams of ethanol as a process control agent ;

[0037] S2. Put the weighed high-purity metal powder and process control agent into the ball mill tank, and at the same time put stainless steel balls in the ball-to-material ratio of 20:1, and fully ball mill for 15 hours until the metal powder is alloyed;

[0038] S3, cold rolling the pure aluminum strip to 0.46mm, then cutting it into 9mm wide, and rolling it into a U-shaped groove, filling the above-mentioned alloy powder, and clos...

Embodiment 3

[0041] An Al-based lightweight high-entropy alloy metal powder-cored welding wire, its chemical composition includes: Al: 9.934%, Co: 21.699%, Cr: 19.145%, Fe: 20.562%, Ni: 21.611%, Ti: 7.050 %.

[0042] Further, its preparation method specifically includes the following steps:

[0043] S1, first weigh 58.806 grams of Co powder, 51.884 grams of Cr powder, 55.724 grams of Fe powder, 58.566 grams of Ni powder, 19.105 grams of Ti powder, the above powders are all high-purity (purity ≥ 99.99%) metal powder; secondly weigh 7.322 grams Ethanol process control agent;

[0044] S2. Put the weighed high-purity metal powder and process control agent into the ball mill tank, and at the same time put stainless steel balls into the ball-to-material ratio of 40:1, and fully ball mill for 10 hours until the metal powder is alloyed;

[0045] S3, cold rolling the pure aluminum strip to 0.11mm, then cutting it into 9mm wide, and rolling it into a U-shaped groove, filling it with the above-ment...

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Abstract

The invention discloses a preparation method and application of an aluminum-based light high-entropy alloy metal powder cored welding wire. The aluminum-based light high-entropy alloy metal powder cored welding wire comprises a metal powder core and a metal sheath wrapping the metal powder core, wherein the metal powder core is alloyed high-entropy alloy powder, the metal sheath is an aluminum-based material, and the metal sheath accounts for 5-90% of the total mass of the metal powder core and the metal sheath. The preparation method comprises the following steps: carrying out cold rolling on an aluminum-based material to 0.1-2 mm, and then slitting the aluminum-based material to 5-15 mm in width; and then placing the metal powder core, grinding balls and a process control agent in a high-energy ball milling tank, and carrying out ball milling for 10-100 h. According to the invention, the aluminum-based light high-entropy alloy metal powder cored welding wire with low density and high performance is obtained by utilizing additive manufacturing technologies such as electric arc fuse, laser fuse and the like; the suitable aluminum-based high-entropy alloy component range is wide, and the precision and speed of part preparation can be controlled according to the thickness of the welding wire; the large light high-entropy alloy component can be prepared in the modes of electric arc additive manufacturing and the like, and size limitation is avoided; and a large component with excellent performance is obtained.

Description

technical field [0001] The invention belongs to the technical field of high-entropy alloy materials, and relates to an aluminum-based light-weight high-entropy alloy and material-adding technology, in particular to a preparation method and application of an aluminum-based light-weight high-entropy alloy metal powder-cored welding wire. Background technique [0002] Traditional lightweight materials are mostly Al alloys, but their performance can no longer meet the increasing performance requirements of materials in the fields of aviation, aerospace, electronics, and communications. Developing lightweight, low-cost structural materials with outstanding properties has always been difficult and is a challenge for many scientists today. Ceramic materials have extremely high hardness and strength under the condition of light weight, but their elongation is extremely low, and processing is difficult, making it impossible to make components with complex shapes. [0003] Recently, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/02B23K35/28B23K35/40C22C30/00
CPCC22C30/00B23K35/0266B23K35/286B23K35/288B23K35/40
Inventor 陆汉龙张志宇
Owner SHANGHAI LONGSHUO WELDING MATERIAL
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