A high-throughput preparation and heat treatment method of a ternary diffusion couple

A diffusion couple, high-throughput technology, applied in the direction of metal rolling, energy efficiency improvement, process efficiency improvement, etc., can solve the problems of low efficiency, low success rate, high cost, etc., to achieve firm combination, shorten time, and work efficiency Improved effect

Active Publication Date: 2021-07-09
YUNNAN PRECIOUS METALS LAB 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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  • A high-throughput preparation and heat treatment method of a ternary diffusion couple
  • A high-throughput preparation and heat treatment method of a ternary diffusion couple
  • A high-throughput preparation and heat treatment method of a ternary diffusion couple

Examples

Experimental program
Comparison scheme
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 with a special hot compound 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 quar...

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Abstract

The invention discloses a high-throughput preparation and heat treatment method of a ternary diffusion couple. The method includes: preparing metal strips, grooving the strips, grinding, pickling, and obtaining three kinds of materials by cold composite or hot composite rolling. The composite strip is then sealed in a quartz tube, and the sample is subjected to diffusion heat treatment by high-frequency induction heating, and a diffusion couple with continuously changing temperature can be prepared at one time. The invention is easy to realize, has high success rate, high efficiency and quickness, can save a lot of experiment time, and has great significance for the development of alloy phase diagram.

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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Patent Type & Authority Patents(China)
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 YUNNAN PRECIOUS METALS LAB CO LTD
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