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K417G high-temperature alloy powder as well as preparation method and application method thereof

A technology of K417G and alloy powder, which is applied in the field of high-performance metal powder preparation for laser 3D printing, can solve complex problems and achieve the effects of low hollow sphere rate, low oxygen content, and good laser 3D printing performance

Active Publication Date: 2018-06-05
辽宁增材智造科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the gas atomization powder making process is extremely complicated, and the preparation of high-performance alloy powder is the result of the comprehensive optimization design of the coupling effects of multiple factors such as the physical and chemical properties of superalloy materials, flow field dynamic parameters, melting parameters, and atomization parameters.

Method used

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  • K417G high-temperature alloy powder as well as preparation method and application method thereof
  • K417G high-temperature alloy powder as well as preparation method and application method thereof
  • K417G high-temperature alloy powder as well as preparation method and application method thereof

Examples

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Effect test

Embodiment 1

[0071] A method for preparing K417G nickel-based superalloy powder for laser 3D printing, using vacuum induction melting technology to prepare the powder, comprising the following steps:

[0072] Step 1, raw material pretreatment:

[0073] Process the K417G nickel-based superalloy master alloy into a cylindrical alloy ingot that matches the shape and volume of the melting crucible. The volume of the alloy ingot accounts for 80% of the crucible volume, and then process a through hole with a diameter of 30 mm in the center of the alloy ingot. Use No. 1000 Metallographic sandpaper removes oxides and impurities on the surface of the alloy ingot, cleans the surface of the alloy and the inside of the through hole with absolute ethanol, and removes the oil stain on the alloy ingot;

[0074] Step 2, adjustment of atomization flow field parameters:

[0075] Place the melting crucible in the induction heating coil of the vacuum induction melting chamber, install a boron nitride ceramic...

Embodiment 2

[0127] A method for preparing K417G nickel-based superalloy powder for laser 3D printing, using vacuum induction melting technology to prepare the powder, comprising the following steps:

[0128] Step 1, raw material pretreatment:

[0129]Process the K417G nickel-based superalloy master alloy into a cylindrical alloy ingot that matches the shape and volume of the melting crucible. The volume of the alloy ingot accounts for 90% of the crucible volume, and then process a through hole with a diameter of 40mm in the center of the alloy ingot. Use No. 1000 Metallographic sandpaper removes oxides and impurities on the surface of the alloy ingot, cleans the surface of the alloy and the inside of the through hole with absolute ethanol, and removes the oil stain on the alloy ingot;

[0130] Step 2, adjustment of atomization flow field parameters:

[0131] Place the melting crucible in the induction heating coil of the vacuum induction melting chamber, install a boron nitride ceramic c...

Embodiment 3

[0177] A method for preparing K417G nickel-based superalloy powder for laser 3D printing, using vacuum induction melting technology to prepare the powder, comprising the following steps:

[0178] Step 1, raw material pretreatment:

[0179] The K417G nickel-based superalloy master alloy is processed into a cylindrical alloy ingot matching the shape and volume of the melting crucible, and the volume of the alloy ingot accounts for 85% of the volume of the crucible. Then process a through hole with a diameter of 35mm in the center of the alloy ingot, remove the oxides and impurities on the surface of the alloy ingot with No. 1000 metallographic sandpaper, clean the surface of the alloy and the inside of the through hole with absolute ethanol, and remove the oil stains on the alloy ingot;

[0180] Step 2, adjustment of atomization flow field parameters:

[0181] Place the melting crucible in the induction heating coil of the vacuum induction melting chamber, install a boron nitri...

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Abstract

The invention discloses K417G nickel-based high-temperature alloy powder as well as a preparation method and an application method thereof. The alloy powder is prepared from the following components in percentage by mass: 0.14-0.15% of C, 9.78-9.88% of Cr, 11.20-11.40% of Co, 3.09-3.22% of Mo, 6.24-6.37% of Al, 4.68-4.79% of Ti, 0.71-0.83% of V and the balance of Ni. The alloy powder prepared by the method has the advantages of uniform composition, no generation of brittle harmful sigma phase, low oxygen content, high degree of sphericity, low rate of hollow spheres and high liquidity. A K417Gnickel-based high-temperature alloy sample with good toughness matching is prepared through laser 3D printing rapid prototyping, which has tensile strength of 1,014-1,026Mpa, yield strength of 843-873Mpa and elongation of 13.6-14.2%.

Description

technical field [0001] The invention belongs to the technical field of high-performance metal powder preparation for laser 3D printing, and in particular relates to a K417G superalloy powder, a preparation method thereof, and a method for using it in laser 3D printing. Background technique [0002] Laser 3D printing is a new advanced manufacturing technology that integrates material preparation and forming. It has the advantages of short cycle time, high flexibility, no need for special tooling, near net shape, and almost unlimited material types and parts complexity. Due to the use of layered superposition technology, compared with the traditional "subtractive manufacturing" method, 90% of raw materials are saved, which can effectively reduce production costs. It is currently becoming an important technology for repairing or manufacturing valuable and complex key metal parts. [0003] K417G superalloy has excellent properties such as high temperature strength, strong oxidat...

Claims

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Application Information

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IPC IPC(8): B22F3/105B22F9/08B22F1/00C22C1/04C22C19/05B33Y10/00
CPCC22C1/0433C22C19/057B22F9/082B33Y10/00B22F10/00B22F1/065B22F10/38B22F10/32B22F12/30B22F10/322B22F10/25B22F10/34B22F10/36B22F10/366Y02P10/25
Inventor 陈岁元刘常升魏明炜李金国王阳梁京郭快快
Owner 辽宁增材智造科技有限公司
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