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Ternary diffusion couple high-flux preparation and heat treatment method

A heat treatment method and high-throughput technology, applied in the direction of metal rolling, energy efficiency improvement, process efficiency improvement, etc., can solve the problems of long time, low success rate and low efficiency of diffusion couple diffusion treatment, so as to improve the success efficiency. , work efficiency improvement, combined with a solid effect

Active Publication Date: 2019-12-03
SINO PLATINUM METALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) It is often difficult to find a suitable way to provide interface binding force to ensure the tight combination of the diffusion couple and to ensure that the diffusion components can diffuse through the interface smoothly, and the success rate is low
[0007] (2) When the diffusion couple performs diffusion treatment, the diffusion treatment time of the diffusion couple is relatively long, generally 5 days to 60 days, and only one sample or one alloy can be processed at one temperature. Research must be carried out sequentially, which is inefficient and expensive

Method used

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  • Ternary diffusion couple high-flux preparation and heat treatment method
  • Ternary diffusion couple high-flux preparation and heat treatment method
  • Ternary diffusion couple high-flux preparation and heat treatment method

Examples

Experimental program
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Effect test

Embodiment 1

[0038] Example 1: High-throughput preparation of Cu-Au-Ag diffusion couples

[0039] (1) Prepare pure metal strips, see Table 1 for specific dimensions

[0040]

[0041] (2) Surface grinding, pickling, rinsing and drying of the prepared strip.

[0042] (3) Strip positioning: the Au strip is embedded in the Cu groove, and the Ag strip covers the surface of the Cu strip and completely covers the Au strip.

[0043] (4) Cold composite rolling: The positioned strips are composite rolled with a special cold composite rolling mill, with a single-pass deformation of 75%, so that the three strips can be mechanically occluded and firmly combined.

[0044] (5) Sample interception and marking: select a well-bonded composite strip with a length of 30 cm, and mark a line every 10 mm on the edge of the composite strip.

[0045] (6) Vacuum sealing: place the intercepted composite strip in a 40 cm long quartz tube, first vacuumize it, and then seal it with a special sealing machine for qu...

Embodiment 2

[0048] Example 2: High-throughput preparation of Cu-Ag-Ni diffusion couples

[0049] (1) Prepare pure metal strips, see Table 2 for specific dimensions.

[0050] Table 2

[0051]

[0052] (2) Surface grinding, pickling, rinsing and drying of the prepared strip.

[0053] (3) Hot compound rolling: hot compound rolling is carried out by a special rolling mill. The hot compound temperature is 600°C, the compound speed is 1.5m / min, the protective atmosphere is an ammonia decomposition atmosphere, and the deformation in a single pass is 55%. Under the action of temperature, the three metals have certain metallurgical bonding.

[0054] (4) Sample interception and marking: select a well-bonded composite strip with a length of 32 cm, and mark a line every 8 mm on the edge of the composite strip.

[0055] (6) Vacuum sealing: place the intercepted composite strip in a 40 cm long quartz tube, first vacuumize it, and then seal it with a special sealing machine for quartz tubes.

[0...

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Abstract

The invention discloses a ternary diffusion couple high-flux preparation and heat treatment method. The method comprises the following steps of preparing a metal strip, slotting the strip, polishing,pickling, carrying out cold compounding or hot compounding rolling to obtain a composite strip of three materials, sealing the composite strip in a quartz tube, and carrying out diffusion heat treatment on a sample by adopting the high-frequency induction heating to prepare the diffusion couple with continuously changing temperature at one time. The method is easy to implement, is high in successrate, is efficient and rapid and is capable of saving a large amount of experiment time and has the important significance for the development of the alloy phase diagrams.

Description

technical field [0001] The invention relates to the field of diffusion couple preparation and diffusion couple heat treatment, in particular to a high-throughput preparation and diffusion heat treatment method of a ternary diffusion couple. [0002] technical background [0003] For materials science, the phase diagram is a concise diagram showing the equilibrium conditions of various phases in a metal or alloy and the equilibrium coexistence relationship of each phase. Provide reliable basis for material research and development. [0004] Generally, researchers generally use the method of diffusion couples to provide relevant data for the drawing of phase diagrams. The basic principle of the traditional diffusion couple preparation technology is: bind different pure metals or alloys together, and carry out long-term diffusion treatment at a specified temperature, forming an interdiffusion layer at the boundary of each metal, and the composition phase in the interdiffusion l...

Claims

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Application Information

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IPC IPC(8): B21B1/22C21D1/74C21D1/42
CPCB21B1/22C21D1/42C21D1/74Y02P10/25
Inventor 陈永泰谢明胡洁琼杨有才张吉明刘满门陈松王赛北王松李爱坤方继恒
Owner SINO PLATINUM METALS CO LTD
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