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Preparation method of multi-principal-element welding wire and high-entropy welding method

A welding method and multi-principal element technology, applied in welding equipment, welding medium, welding equipment, etc., can solve the problems of high-entropy alloy high cost, complex process, residual stress, etc., to simplify the production process, simplify the welding process, reduce Effects of Residual Stress and Deformation

Active Publication Date: 2021-08-06
EAST CHINA JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this process will generate other types of intermetallic compounds and large welding residual stress, deformation, and then lead to cracks
In the prior art, welding filler materials need to prepare high-entropy alloys in advance, and then use the diffusion hysteresis effect of high-entropy alloys to reduce element contact, and high-mixing entropy effects to inhibit the formation of intermetallic compounds, so as to realize weld joints, and the cost of pre-preparing high-entropy alloys is high. , complex process

Method used

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  • Preparation method of multi-principal-element welding wire and high-entropy welding method
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  • Preparation method of multi-principal-element welding wire and high-entropy welding method

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preparation example Construction

[0025] The embodiment of the present application provides a method for preparing a multi-principal welding wire, comprising the following steps:

[0026] S11. Provide at least three kinds of metal wires;

[0027] S12. Winding different metal wires according to a predetermined quantity ratio to make a rod-shaped multi-principal element welding wire.

[0028] In some embodiments, the wires include but are not limited to at least three of Al wires, Cu wires, Ni wires, Co wires, Mo wires and Ni80Cr20 alloy wires.

[0029] It should be noted that in the preparation method of the multi-principal welding wire of the present application, various metal wires are fixed on the wire winding device according to the predetermined quantity ratio, and the metal wires are mechanically wound with each other by the rotation of the device, and then made into a rod-shaped multi-principal welding wire. The principal element welding wire, specifically, the quantity ratio of the metal wire is determ...

Embodiment 1

[0041] The embodiment of the present application provides a method for preparing a multi-principal welding wire comprising the following steps:

[0042] S11, providing Ni metal wire, Co metal wire and Al metal wire with a diameter of 0.5 mm and a length of 750 mm;

[0043] S12, according to the quantity ratio of Ni metal wire, Co metal wire and Al metal wire is 2:2:1, Ni metal wire, Co metal wire and Al metal wire are wound, make rod-shaped multi-principal element welding wire;

[0044] Among them, the multi-principal element welding wire made according to the above quantitative ratio, the mass percentage of Ni in the multi-principal element welding wire is calculated to be 46.47%, the mass percentage of Co is 46.47%, and the mass percentage of Al is 7.06%. The atomic percentage of Ni is 42.98%, the atomic percentage of Co is 42.84%, and the atomic percentage of Al is 14.18%.

[0045] The embodiment of the present application also provides a high-entropy welding method as fol...

Embodiment 2

[0053] The embodiment of the present application provides a method for preparing a multi-principal welding wire comprising the following steps:

[0054] S11, providing Ni metal wire, Co metal wire and Al metal wire with a diameter of 0.5 mm and a length of 500 mm;

[0055] S12, according to the quantity ratio of Ni metal wire, Cu metal wire and Al metal wire is 2:2:3, Ni metal wire, Co metal wire and Al metal wire are wound, make rod-shaped multi-principal element welding wire;

[0056] Among them, the multi-principal element welding wire made according to the above quantitative ratio, the mass percentage of Ni in the multi-principal element welding wire is calculated to be 40.62%, the mass percentage of Cu is 40.90%, and the mass percentage of Al is 18.48%. The atomic percentage of Ni is 34.25%, the atomic percentage of Cu is 31.85%, and the atomic percentage of Al is 33.90%.

[0057] The embodiment of the present application also provides a high-entropy welding method as fo...

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Abstract

The invention provides a preparation method of a multi-principal-element welding wire and a high-entropy welding method. The preparation method of the multi-principal-element welding wire comprises the following steps that at least three kinds of metal wires are provided; and according to the preset quantity ratio, different metal wires are wound, and the rod-shaped multi-principal-element welding wire is prepared. According to the preparation method of the multi-principal-element welding wire, the multiple kinds of metal wires are wound according to the preset quantity ratio, the rod-shaped multi-principal-element welding wire is prepared, the situation that raw materials are molten to prepare high-entropy alloy, and then a wire material is prepared through metal spinning and spray deposition is avoided, the welding wire is prepared through winding of the pure metal wires, the alloying step can be omitted, needed components can be flexibly adjusted, the production process of the welding wire for high-entropy welding is greatly simplified, and cost is reduced.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a preparation method of multi-principal element welding wire and a high-entropy welding method. Background technique [0002] Welding is one of the important technologies in industrial manufacturing and engineering construction, and it is an effective means to produce sealed containers, structural materials and realize reliable connections. As a layered metal composite material, titanium / steel composite plate is generally made by hot rolling or explosive welding. It combines the excellent corrosion resistance of titanium and the low cost of steel, and has good strength. It is used in marine engineering, shipbuilding, It has broad application prospects in the field of petrochemical industry. However, the thermophysical properties of iron and titanium are very different, and the physical and chemical compatibility is low, so it is easy to produce brittle intermetallic compound-in...

Claims

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Application Information

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IPC IPC(8): B23K35/02B23K35/28B23K35/30B23K35/40B23K9/16B23K26/21
CPCB23K35/0261B23K35/286B23K35/302B23K35/3033B23K35/3046B23K35/40B23K9/16B23K26/21
Inventor 刘德佳王伟雄焦海涛唐延川胡勇赵龙志
Owner EAST CHINA JIAOTONG UNIVERSITY
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