Unlock instant, AI-driven research and patent intelligence for your innovation.

Silicon-boron-containing interlayer alloy for bonding nickel-based high-temperature alloy or stainless steel and application thereof

A technology of nickel-based superalloys and nickel-based alloys, applied in the connection of nickel-based superalloys or stainless steel, and in the field of intermediate layer alloys containing silicon and boron for nickel-based superalloys or stainless steel connections, which can solve problems such as pore defects and low strength , to achieve the effect of good connection quality and simple and effective method

Active Publication Date: 2016-05-25
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
View PDF8 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of pore defects and low strength in the currently used powder solder alloys, the invention provides a silicon-boron-containing interlayer alloy for nickel-based superalloy or stainless steel connection and its application. The interlayer alloy is used for nickel High-efficiency high-quality connections based on superalloys or stainless steels

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Silicon-boron-containing interlayer alloy for bonding nickel-based high-temperature alloy or stainless steel and application thereof
  • Silicon-boron-containing interlayer alloy for bonding nickel-based high-temperature alloy or stainless steel and application thereof
  • Silicon-boron-containing interlayer alloy for bonding nickel-based high-temperature alloy or stainless steel and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The nickel-based superalloy of this embodiment is K465, and its chemical composition is: Cr: 10-15wt.%; W: 5-8wt.%; Si: 2-5wt.%; B: 1.5-3.0wt.%. margin.

[0036] The chemical composition of the intermediate layer alloy is: boron: 2%; silicon: 2%; tungsten: 9%; chromium: 12%; iron: 6%; nickel is the balance.

[0037] Remove the oxide skin on the surface of the alloy rod, and process it into a sample of Φ16mm×4mm. Use No. 800 sandpaper to smooth and polish the surface to be welded, and ultrasonically clean it in acetone and alcohol for 15 minutes to remove the oil on the surface of the sample. The intermediate layer alloy is placed between two samples to be welded, fixed with a clamp, and the outer surface of the sample is coated with flow blocking agent to prevent the loss of the liquid intermediate layer.

[0038] Place the assembled sample in a vacuum furnace for instantaneous liquid phase connection, the connection temperature is 1200°C, the time is 240 minutes, and...

Embodiment 2

[0041] The nickel-based superalloy of this embodiment is K465, and its chemical composition is: Cr: 10-15wt.%; W: 5-8wt.%; Si: 2-5wt.%; B: 1.5-3.0wt.%. margin.

[0042] The chemical composition of the intermediate layer alloy is: boron: 3%; silicon: 2%; tungsten: 9%; chromium: 12%; iron: 6%; nickel is the balance.

[0043] Remove the oxide skin on the surface of the alloy rod, and process it into a sample of Φ16mm×4mm. Use No. 800 sandpaper to smooth and polish the surface to be welded, and ultrasonically clean it in acetone and alcohol for 15 minutes to remove the oil on the surface of the sample. The intermediate layer alloy is placed between two samples to be welded, fixed with a clamp, and the outer surface of the sample is coated with flow blocking agent to prevent the loss of the liquid intermediate layer.

[0044] Place the assembled sample in a vacuum furnace for instant liquid phase connection, the connection temperature is 1150°C, the time is 210 minutes, and the p...

Embodiment 3

[0047] The nickel-based superalloy of this embodiment is K465, and its chemical composition is: Cr: 10-15wt.%; W: 5-8wt.%; Si: 2-5wt.%; B: 1.5-3.0wt.%. margin.

[0048] The chemical composition of the intermediate layer alloy is: boron: 2%; silicon: 3%; tungsten: 9%; chromium: 12%; iron: 6%; nickel is the balance.

[0049]Remove the oxide skin on the surface of the alloy rod, and process it into a sample of Φ16mm×4mm. Use No. 800 sandpaper to smooth and polish the surface to be welded, and ultrasonically clean it in acetone and alcohol for 15 minutes to remove the oil on the surface of the sample. The intermediate layer alloy is placed between two samples to be welded, fixed with a clamp, and the outer surface of the sample is coated with flow blocking agent to prevent the loss of the liquid intermediate layer.

[0050] Place the assembled sample in a vacuum furnace for instant liquid phase connection, the connection temperature is 1170°C, the time is 180 minutes, and the pr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Widthaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses silicon-boron-containing interlayer alloy for bonding nickel-based high-temperature alloy or stainless steel and application thereof, and belongs to the technical field of high-temperature alloy and stainless steel connection. The interlayer alloy is prepared from the following chemical components in percentage by weight: 2-3.5 percent of boron, 1-3 percent of silicon, 4-10 percent of tungsten, 10-15 percent of chromium, 3-6 percent of iron and the balance of nickel. The interlayer alloy is amorphous foil prepared by a spinning method, and is used for transient liquid-phase bonding of nickel-based high-temperature alloy or stainless steel in 100-240 minutes at 1050-1250 DEG C.

Description

technical field [0001] The invention relates to the technical field of high-temperature alloy and stainless steel connection, in particular to a silicon-boron-containing intermediate layer alloy for connection of nickel-based high-temperature alloy or stainless steel and application thereof. The intermediate layer alloy is suitable for connection of nickel-based high-temperature alloy or stainless steel. Background technique [0002] High-temperature alloys and stainless steel materials are widely used in modern industrial production. In the application process of these materials, not only the strength of the materials themselves must be considered, but also the welding problems of these materials must be solved. However, due to the high degree of alloying of superalloys and stainless steel materials, they often contain more alloying elements, resulting in extremely poor welding performance of these materials, and a high tendency to produce welding cold and hot cracks, which ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B23K1/008B23K1/19B23K1/20
CPCB23K1/008B23K1/19B23K1/20B23K1/206B23K2103/18
Inventor 刘纪德李金国孙元李博金涛周亦胄孙晓峰
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI