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NiCoCrWNbMoAlSiBTiC powder brazing material

A technology of brazing materials and powders, applied in the field of NiCoCrWNbMoAlSiBTiC powder brazing materials, to achieve the effects of excellent welding processability, small erosion, and outstanding application effects

Inactive Publication Date: 2010-07-21
INST OF METAL RESEARCH - CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a NiCoCrWNbMoAlSiBTiC powder brazing material, which is a high-temperature alloy powder brazing material with excellent performance, to solve some problems such as high-temperature alloy connection with special purposes

Method used

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  • NiCoCrWNbMoAlSiBTiC powder brazing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] In this embodiment, the preparation process of NiCoCrWNbMoAlSiBTiC powder brazing material is as follows:

[0028] Step 1: Use a vacuum induction furnace to melt the solder alloy ingot, and the purity of the raw material is not lower than 98wt%. Ingredients according to Table 3:

[0029] Table 3 Ingredients List for Solder Alloy Preparation

[0030] element

co

Cr

W

Nb

Content (wt%)

9

7

9

11

element

Mo

Al

Si

B

Content (wt%)

2

4

3

0.5

element

Ti

C

Ni

Content (wt%)

0.6

0.11

margin

[0031] Step 2: The alloy ingot obtained in Step 1 is made into powder by a gas atomization method.

[0032] Step 3: Classify the alloy powder prepared in step 2.

[0033] Step 4: Test the particle diameter of the prepared powder sample with a microscope, and the results are shown in Table 5.

[0034] Step 5: The brazing material pr...

Embodiment 2

[0038] In this embodiment, the preparation process of NiCoCrWNbMoAlSiBTiC powder brazing material is as follows:

[0039] Step 1: Use a vacuum induction furnace to melt the solder alloy ingot, and the purity of the raw material is not lower than 98wt%. Ingredients according to Table 4:

[0040] Table 4 Ingredients list for solder alloy preparation

[0041] element

co

Cr

W

Nb

Content (wt%)

8

8

8

10

element

Mo

Al

Si

B

Content (wt%)

2

3

2

0.3

element

Ti

C

Ni

Content (wt%)

0.5

0.12

margin

[0042] Step 2: The alloy ingot obtained in Step 1 is made into powder by a gas atomization method.

[0043] Step 3: Classify the alloy powder prepared in step 2.

[0044] Step 4: Test the particle diameter of the prepared powder sample with a microscope, and the results are shown in Table 5.

[0045] Step 5: The brazing material pr...

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Abstract

The invention relates to the high-temperature alloy brazing material field, in particular to NiCoCrWNbMoAlSiBTiC powder brazing material. The brazing material comprises the following chemical compositions by weight percent: 7-11% of Co, 5-8% of Cr, 7-11% of W, 9-12% of Nb, 1-3% of Mo, 3-6% of Al, 2-5% of Si, 0.1-2.0% of B, 0.2-1.2% of Ti, 0.01-0.30% of C and the balance Ni. The particle diameter of the powder brazing material is not more than 0.3mm. The powder brazing material is prepared by gas atomization method and the brazing temperature of the powder brazing material is 1150-1300 DEG C. The existing high-temperature brazing material can not meet the operating requirements along with the continuous occurrence of new materials and the increased standard of causative environment, and the high-temperature alloy brazing material can solve the connection problem of high-temperature alloy which can be used in special environments and have important industrial application value.

Description

technical field [0001] The invention relates to the field of high-temperature alloy brazing materials, in particular to a NiCoCrWNbMoAlSiBTiC powder brazing material. Background technique [0002] High-temperature alloy brazing material is a new type of brazing material that has been gradually developed in recent years. A variety of Ni-based, Co-based and Fe-based high-temperature brazing materials are being gradually developed. Table 1 lists some high-temperature Ni-based alloy solders that have been reported. These high-temperature alloy solders are suitable for certain service environments and material connections. [0003] Table 1 Ni-based brazing filler metals for superalloy brazing [0004] [0005] However, in recent years, with the continuous emergence of new materials and the increase in the harshness of the service environment, the existing high-temperature brazing materials can no longer meet their use requirements. Applied superalloy connection problem, has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/30
Inventor 侯万良常新春方波魏明霞杜静张甲王建强胡壮麒
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI