Bonding layer material having Re-Ni-Cr alloy diffusion barrier layer and preparation method thereof

A re-ni-cr, barrier layer technology, applied in solid diffusion coating, metal material coating process, coating and other directions, can solve problems such as reducing the life of thermal barrier coating, and achieve good application potential and good stability , the effect of reducing the interdiffusion rate

Inactive Publication Date: 2010-12-15
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] One of the objects of the present invention is to provide a bonding of Re-Ni-Cr alloy diffusion barrier layer in order to solve the problem of reducing the lifetime of the entire thermal barrier coating (TBCs) due to the interdiffusion of alloying elements between the bonding layer and the substrate interface. layer material

Method used

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  • Bonding layer material having Re-Ni-Cr alloy diffusion barrier layer and preparation method thereof
  • Bonding layer material having Re-Ni-Cr alloy diffusion barrier layer and preparation method thereof
  • Bonding layer material having Re-Ni-Cr alloy diffusion barrier layer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] (1) Sample preparation

[0073] (1), cut the sample into blocks according to the thickness of 3mm;

[0074] (2) A 1.2mm hole is drilled on the upper end of the sample to facilitate the connection of the sample with Ni wire for electroplating;

[0075] (3) Grind the surface with #150 sandpaper, especially the corners should be ground slowly;

[0076] (4) Calculate the total area and weight of the sample.

[0077] The sample described therein is a Ni-based single crystal superalloy.

[0078] (2) Preparation of electrolyte

[0079] (1), preparation of flash nickel aqueous solution

[0080] ①. Wash the 1-liter beaker and prepare it for use;

[0081] ②. Add 600cc of pure water to the beaker, stir it magnetically, and prepare it for use;

[0082] ③. Add 205g nickel chloride and 125ml hydrochloric acid;

[0083] ④. When the volume of the solution is less than 1 liter, increase the volume of the solution to 1 liter;

[0084] ⑤. After 1.5 hours of magnetic stirring at room...

Embodiment 2

[0122] (1) Sample preparation

[0123] (1), cut the sample into blocks according to the thickness of 2mm;

[0124] (2) A hole of 1 mm is drilled on the upper end of the sample to facilitate the connection of the sample with Ni wire for electroplating;

[0125] (3) Grind the surface with #150 sandpaper, especially the corners should be ground slowly;

[0126] (4), calculate the total area and weight of the sample;

[0127] Wherein said sample is a Ni-based single crystal superalloy;

[0128] (2) Preparation of electrolyte

[0129] (1) Preparation of flash nickel aqueous solution

[0130] ①. Wash the 1-liter beaker and prepare it for use;

[0131] ②. Add 600cc of pure water to the beaker, stir it magnetically, and prepare it for use;

[0132] ③. Add 190.17g nickel chloride and 100ml hydrochloric acid;

[0133] ④. When the volume of the solution is less than 1 liter, increase the volume of the solution to 1 liter;

[0134] ⑤. After 1 hour of magnetic stirring at room temp...

Embodiment 3

[0171] (1) Sample preparation

[0172] (1), cut the sample into blocks according to the thickness of 5mm;

[0173] (2) A 1.5mm hole is drilled on the upper end of the sample to facilitate the connection of the sample with Ni wire for electroplating;

[0174] (3) Grind the surface with #150 sandpaper, especially the corners should be ground slowly;

[0175] (4), calculate the total area and weight of the sample;

[0176] Wherein said sample is a Ni-based single crystal superalloy;

[0177] (2) Preparation of electrolyte

[0178] (1) Preparation of flash nickel aqueous solution

[0179] ①. Wash the 1-liter beaker and prepare it for use;

[0180] ②. Add 600cc of pure water to the beaker, stir it magnetically, and prepare it for use;

[0181] ③. Add 285.25g nickel chloride and 130ml hydrochloric acid;

[0182] ④. When the volume of the solution is less than 1 liter, increase the volume of the solution to 1 liter;

[0183] ⑤. After 2 hours of magnetic stirring at room tempe...

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Abstract

The invention discloses a bonding layer material having a Re-Ni-Cr alloy diffusion barrier layer and a preparation method thereof. The Re-Ni-Cr alloy diffusion barrier layer is coated on a matrix material, wherein the matrix material is a Ni, Al, Ti, Fe or Nb-based alloy material, and the Re-Cr-Ni alloy diffusion barrier layer comprises the following elements in percentage by mass: 20-65% of Re, 30-50% of Cr and 5-30% of Ni. The preparation method comprises the step of forming the Re-Cr-Ni alloy diffusion barrier layer material on a matrix high-temperature super alloy by electroplating. The bonding layer material having a Re-Ni-Cr alloy diffusion barrier layer has smooth and uniformly distributed surface coating, can remain stable under high-temperature conditions, can prevent alloy elements in the matrix from outward diffusion and prevents oxygen in the air from inward diffusion to the alloy matrix.

Description

technical field [0001] The present invention relates to a new type of Re-based diffusion barrier material and its preparation method, that is, a Re-Cr-Ni alloy is formed on a matrix high-temperature superalloy by electroplating, so that it can be used as a new type of Re-Cr-Ni alloy with good high temperature stability. The bonding layer material of the Ni diffusion barrier layer material is applied in the field of high temperature superalloy turbine blades. Background technique [0002] With the deepening of global climate warming and increasing energy shortages, people are generally concerned about reducing greenhouse gas emissions, recycling greenhouse gases, and improving the efficiency of traditional power industries. At present, the world emits more than 25 billion tons of CO every year 2 , CO in the air 2 The concentration has increased from 280ppm to 380ppm, and is currently increasing at a rate of 3ppm / year. my country's economy is in a stage of rapid development...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F17/00C25D3/56C25D5/48C23C10/38
Inventor 武英刘艳
Owner SHANGHAI INST OF TECH
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