Nickel-based alloy powder and a preparing method thereof

A nickel-based alloy and powder technology, which is applied in the field of nickel-based alloy powder and its preparation, can solve the problems of low high-temperature resistance strength and corrosion resistance, and achieve the effects of improving corrosion resistance, high-temperature strength, and good mechanical properties

Inactive Publication Date: 2018-03-09
XIHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a nickel-based alloy powder and a preparation method thereof, which can effectively solve the problems of low high-temperature resistance strength and corrosion resistance of existing nickel-based alloys

Method used

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  • Nickel-based alloy powder and a preparing method thereof

Examples

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Embodiment 1

[0028] A kind of nickel base alloy powder, its preparation method comprises the following steps:

[0029] (1) In terms of mass percentage, the nickel-based alloy powder components are: magnesium 2%, cobalt 8%, chromium 12%, molybdenum 1.2%, Re 0.3%, silicon 4%, carbon 0.8%, boron 0.6%, iron 2.6%, aluminum 2.15%, the rest is nickel;

[0030] Weigh the following components according to the above mass percentages: anhydrous magnesium sulfate, cobalt nitrate hexahydrate, chromium nitrate nonahydrate, molybdenum nitrate pentahydrate, Re, silicon dioxide, flake graphite powder, boron powder, iron powder, di Aluminum and nickel nitrate hexahydrate;

[0031] (2) Anhydrous magnesium sulfate, cobalt nitrate hexahydrate, chromium nitrate nonahydrate, molybdenum nitrate pentahydrate and nickel nitrate hexahydrate are mixed, then add water and mix with mixture and water weight ratio is 1:8;

[0032] (3) Heat the product obtained in step (2) to 70°C, add 0.01 times the weight of ammonia w...

Embodiment 2

[0039] A kind of nickel base alloy powder, its preparation method comprises the following steps:

[0040] (1) In terms of mass percentage, the nickel-based alloy powder components are: magnesium 4.35%, cobalt 15%, chromium 17.35%, molybdenum 2.6%, Re 0.6%, silicon 6%, carbon 1.5%, boron 1.8%, iron 3.2% %, aluminum 3.85%, the rest is nickel;

[0041] Weigh the following components according to the above mass percentages: anhydrous magnesium sulfate, cobalt nitrate hexahydrate, chromium nitrate nonahydrate, molybdenum nitrate pentahydrate, Re, silicon dioxide, flake graphite powder, boron powder, iron powder, di Aluminum and nickel nitrate hexahydrate;

[0042] (2) Anhydrous magnesium sulfate, cobalt nitrate hexahydrate, chromium nitrate nonahydrate, molybdenum nitrate pentahydrate and nickel nitrate hexahydrate are mixed, then add water and mix with mixture and water weight ratio is 3:10;

[0043] (3) Heat the product obtained in step (2) to 80°C, add 0.02 times the weight of...

Embodiment 3

[0050] A kind of nickel base alloy powder, its preparation method comprises the following steps:

[0051] (1) In terms of mass percentage, the nickel-based alloy powder components are: magnesium 3%, cobalt 10%, chromium 14%, molybdenum 1.6%, Re 0.4%, silicon 4.5%, carbon 1.0%, boron 1.0%, iron 2.8%, aluminum 2.85%, the rest is nickel;

[0052] Weigh the following components according to the above mass percentages: anhydrous magnesium sulfate, cobalt nitrate hexahydrate, chromium nitrate nonahydrate, molybdenum nitrate pentahydrate, Re, silicon dioxide, flake graphite powder, boron powder, iron powder, di Aluminum and nickel nitrate hexahydrate;

[0053] (2) Anhydrous magnesium sulfate, cobalt nitrate hexahydrate, chromium nitrate nonahydrate, molybdenum nitrate pentahydrate and nickel nitrate hexahydrate are mixed, then add water to mix with mixture and water weight ratio of 1:9;

[0054] (3) Heat the product obtained in step (2) to 75°C, add 0.012 times the weight of ammoni...

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Abstract

Nickel-based alloy powder and a preparing method thereof are disclosed. The method includes (1) preparing raw materials; (2) mixing anhydrous magnesium sulfate, cobalt nitrate hexahydrate, chromium nitrate nonahydrate, molybdenum nitrate pentahydrate and nickel nitrate hexahydrate, adding water to the mixture, and mixing the mixture; (3) heating the mixture obtained in the step (2) to 70-80 DEG C,adding aqueous ammonia under stirring into the mixture, with the weight of the aqueous ammonia being 0.01-0.02 time of the weight of the mixture, and stirring the mixture for 3-5 min; (4) centrifuging the mixture obtained in the step (3), and drying a precipitate; (5) performing ball milling; (6) smelting; (7) quenching a product obtained in the step (6) in ice water, maintaining the temperatureat 700-900 DEG C for 5-8 days, and then quenching the product in ice water; and (8) putting the product obtained in the step (7) into a ball mill, and performing ball milling at a rotating speed of 150-250 r / min for 5-8 h. The nickel-based alloy powder prepared by the method has significantly improved corrosion resistance, high-temperature strength and other mechanical properties.

Description

technical field [0001] The invention belongs to the technical field of nickel-based alloys, and in particular relates to a nickel-based alloy powder and a preparation method thereof. Background technique [0002] With the development of the national economy, the continuous increase of the city scale and the continuous increase of enterprises in the pharmaceutical industry and printing and dyeing industry in my country's industrial production, the problems of urban sewage and sludge treatment are becoming more and more prominent. A large amount of acid, Alkaline pollutants are also increasing. At present, some technologies can effectively treat sewage, sludge, acid and alkaline pollutants, etc., but because the equipment required by these technologies is carried out under a certain temperature and pressure, the thermal processing performance and durability of the materials of the equipment High temperature strength and high corrosion resistance are required. [0003] General...

Claims

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Application Information

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IPC IPC(8): C22C19/05C22C1/02B22F9/24B22F9/04
CPCB22F9/04B22F9/24B22F2009/043C22C1/023C22C19/056
Inventor 陈宝书栾道成冯再廖力
Owner XIHUA UNIV
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