Double-arc fuse collaborative additive manufacturing method of high-entropy alloy

A high-entropy alloy and additive manufacturing technology, applied in the field of high-entropy alloys, can solve problems such as uneven chemical composition and structure, inconvenient adjustment of alloy composition, voids and shrinkage cavities, etc., to achieve uniform chemical composition and structure, heat input Large adjustment range and small splash effect

Active Publication Date: 2018-07-27
SHIJIAZHUANG TIEDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the existing problems of high cost, low preparation efficiency, inconvenient alloy composition adjustment, uneven chemical composition and structure, and easy occurrence of defects such as pores, cracks, slag inclusions, voids and shrinkage cavities, the present invention provides a high Synergistic additive manufacturing method for entropy alloy double arc fuse

Method used

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  • Double-arc fuse collaborative additive manufacturing method of high-entropy alloy
  • Double-arc fuse collaborative additive manufacturing method of high-entropy alloy
  • Double-arc fuse collaborative additive manufacturing method of high-entropy alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A kind of high entropy alloy CrMnFeCoNi, preparation method comprises the steps:

[0050] (1) Select the alloy strip and the drug core powder according to the raw material ratio, and the composition and content are as described in Table 1 and Table 2, wherein the width of the alloy strip 1 and the alloy strip 2 is 12mm, and the thickness is 0.3mm ;

[0051] Table 1

[0052] Numbering

Fe

Cr

mn

Ni

alloy belt 1

69.5wt%

30wt%

0.5wt%

0

Alloy Belt 2

1wt%

30wt%

1.0wt%

68wt%

[0053] Table 2

[0054] Numbering

Chrome powder

Manganese powder

cobalt powder

Drug core powder 1

26.9g

469.9g

503.2g

Drug core powder 2

26.9g

469.9g

503.2g

[0055] (2) The drug core powder 1 and the drug core powder 2 are processed as follows:

[0056] Drying treatment: use a far-infrared drying oven for drying, the drying temperature is 110°C, and the drying time is 1....

Embodiment 2

[0070] A High Entropy Alloy CrMnFeCoNiSi 0.25 C 0.25 , the preparation method comprises the following steps:

[0071] (1) Select the alloy strip and the drug core powder according to the raw material ratio, the composition and content are as described in Table 4 and Table 5, wherein the width of the alloy strip 1 and the alloy strip 2 is 10mm, and the thickness is 0.3mm;

[0072] Table 4

[0073] Numbering

Fe

Cr

mn

Ni

alloy belt 1

69.5wt%

30wt%

0

0.5wt%

Alloy Belt 2

1wt%

30wt%

1.0wt%

68wt%

[0074] table 5

[0075] Numbering

cobalt powder

Manganese powder

Silicon carbide powder

Drug core powder 1

475.4g

443.7g

80.9g

Drug core powder 2

475.4g

443.7g

80.9g

[0076] (2) The drug core powder 1 and the drug core powder 2 are processed as follows:

[0077] Drying treatment: use a far-infrared drying oven for drying, the drying temperature is 120°C,...

Embodiment 3

[0091] A high entropy alloy Al 0.5 CrFeCoNiCu 0.7 Ti 0.2 C 0.2 W 0.08 , the preparation method comprises the following steps:

[0092] (1) Select the alloy strip and the drug core powder according to the raw material ratio, the composition and content are as described in Table 7 and Table 8, wherein the width of the alloy strip 1 and the alloy strip 2 is 8mm, and the thickness is 0.3mm;

[0093] Table 7

[0094] Numbering

Fe

Cr

Ni

co

Cu

W

alloy belt 1

39wt%

28wt%

32wt%

0

1wt%

0

Alloy Belt 2

1wt%

19wt%

11wt%

55wt%

0

14wt%

[0095] Table 8

[0096] Numbering

Aluminum powder

copper powder

Titanium carbide powder

Drug core powder 1

289.3g

67.8g

642.9g

Drug core powder 2

0

1000g

0

[0097] (2) The drug core powder 1 and the drug core powder 2 are processed as follows:

[0098] Drying treatment: use a far-infrared drying ove...

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Abstract

The invention relates to the technical field of high-entropy alloys, and specifically discloses a double-arc fuse collaborative additive manufacturing method of a high-entropy alloy. The method is characterized in that raw materials are supplied based on a formula of the high-entropy alloy, wherein the raw materials include an alloy strip and flux core powder; the alloy strip and the flux core powder are prepared into a flux cored welding wire; and then a double-arc fuse collaborative additive manufacturing method is carried out to obtain a part or a blocky alloy as requirement. The method isstable in processes, high in cladding efficiency, high in preparation efficiency, wide in heat input adjusting range, low in cost, convenient to adjust the components of the alloy and the size of crystal grains; in addition, the method is applicable to manufacturing of massive high-entropy alloys as well as precise high-entropy alloy parts.

Description

technical field [0001] The invention relates to the technical field of high-entropy alloys, in particular to a method for synergistic additive manufacturing of high-entropy alloy double-arc fuses. Background technique [0002] As a new alloy design concept, high-entropy alloys have many structural characteristics and properties that traditional alloys do not have. According to different research and application fields, different preparation methods can be selected for high-entropy alloys. High-entropy alloys are currently prepared in two forms: bulk and thin films. For bulk multi-principal alloys, the most commonly used methods are vacuum arc melting, vacuum electromagnetic induction melting, powder metallurgy, mechanical alloying, selective laser melting and other methods. [0003] Vacuum arc melting technology is the method most used by researchers. It uses arc discharge to heat and melt metal. After melting, the molten metal is cooled and solidified in a water-cooled co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/34B23K26/70B33Y10/00B33Y80/00
CPCB23K26/34B23K26/702B33Y10/00B33Y80/00
Inventor 胡连海许昌玲赵阳刘晓林侯德彬靳旭乐冷宇轩孙继友
Owner SHIJIAZHUANG TIEDAO UNIV
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