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High-gamma'-content nickel-based high-temperature alloy powder for additive manufacturing, using method therefore and nickel-based high-temperature alloy component

A nickel-based superalloy and additive manufacturing technology, which is applied in the field of high-γ′-content nickel-based superalloy powder for additive manufacturing and nickel-based superalloy components, can solve problems such as thermal cracks that cannot be completely avoided, and achieve high-temperature mechanical properties Good, the crack sensitivity is reduced, and the effect of meeting the needs of use

Active Publication Date: 2021-06-08
常州钢研极光增材制造有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing additive manufacturing techniques involving IN738LC-based Ni-based superalloy powders with improved chemical composition control and reduce trace elements such as Si and Zr that promote hot cracking, but this cannot completely avoid alloys with higher γ′ content hot crack in

Method used

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  • High-gamma'-content nickel-based high-temperature alloy powder for additive manufacturing, using method therefore and nickel-based high-temperature alloy component
  • High-gamma'-content nickel-based high-temperature alloy powder for additive manufacturing, using method therefore and nickel-based high-temperature alloy component
  • High-gamma'-content nickel-based high-temperature alloy powder for additive manufacturing, using method therefore and nickel-based high-temperature alloy component

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Effect test

Embodiment 1

[0100] A nickel-based high-temperature alloy powder with a new type of add material, according to weight percent, chemical composition:

[0101] Cr: 13.2%, CO: 8.6%, Al: 4.0%, Ti: 3.9%, Fe: 3.6%, W: 2.8%, TA: 1.9%, MO: 1.9%, HF: 1.6%, NB: 1%, C: 0.06%, Si: 0.04%, Mn: 0.01%, Zr: 0.02%, B: 0.007%, the margin is Ni and impurity elements.

[0102] The alloy powder has a particle size distribution and a spherical form of 15 to 53 μm. The alloy powder was produced by vacuum induction smelting, and then manufactured by a vacuum atomization method or plasma rotating electrode powder.

[0103] Using the high-temperature alloy powder according to Embodiment 1, a high-temperature alloy sample was prepared by the selection laser molten process. During printing process, 220W laser power, 1200 mm / s laser scanning speed, 100 μm spot diameter, 90 μm laser spacing, 30 μm were used during printing process. Popping thickness. It is observed to observe and cause density detection to obtain a unifor...

Embodiment 2

[0112] The difference from the first embodiment is that the nickel-based high-temperature alloy powder for the addition of materials is measured by weight, and chemical components are: Cr: 12%, CO: 8%, Al: 3.8%, Ti: 3.8%, Fe: 3%, W: 2.4%, TA: 1.9%, MO: 1.6%, HF: 0.1%, Nb: 1%, C: 0.06%, Si: 0.04%, Mn: 0.01%, Zr: 0.02%, B: 0.007%, the margin is Ni and impurity elements.

Embodiment 3

[0114] The difference between the present embodiment and the first embodiment is that the addition of nickel-based high-temperature alloy powders for the production of materials, the chemical composition is: Cr: 14%, CO: 9%, Al: 4.2%, Ti: 4.2%, W: 2.8%, Fe: 2.8%, TA: 2.1%, MO: 2%, HF: 2%, Nb: 1.2%, C: 0.12%, Si: 0.1%, Mn: 0.02%, Zr: 0.02%, B: 0.01%, the margin is Ni and impurity elements.

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Abstract

The invention provides high-gamma'-content nickel-based high-temperature alloy powder for additive manufacturing, a using method therefore and a nickel-based high-temperature alloy component, and relates to the technical field of powder-based additive manufacturing. The high-gamma'-content nickel-based high-temperature alloy powder for additive manufacturing comprises the following chemical components in percentage by weight: 12-14% of Cr, 8-9% of Co, 3.8-4.2% of Al, 3.8-4.2% of Ti, 2.4-2.8% of W, 1.9-2.1% of Ta, 1.6-2.0% of Mo, 1.0-1.2% of Nb, 0.1-5% of Fe, 0.1-2.0% of Hf, 0.12% or less of C, 0.1% or less of Si, 0.02% or less of n, less than 0.03% of Zr, 0.01% or less of B, and the balance Ni and impurity elements. By using the high-temperature alloy powder, compact and crack-free complex parts meeting the strength requirement in the ultrahigh-temperature environment can be printed through the selective laser melting technology.

Description

Technical field [0001] The present invention relates to the field of production techniques of powder matrix, and more particularly to a high γ 'content of nickel-based high-temperature alloy powder for a high γ' content of a reducing material, which is used, and the nickel-based high-temperature alloy member is used. Background technique [0002] When promoting the additive manufacturing technology to a high-performance high temperature alloy, it is found that although there is a wide variety of high-performance high-temperature alloys, it is based on traditional preparation processes. In order to ensure printability, high-temperature alloy materials currently used in the field of additive manufacturing are mainly composed of a weldability high temperature alloy (solid solution reinforcing alloy (such as IN625) and low content γ 'alloy (such as in718, hasttelloy x). [0003] In / 625, in718, and Hastelloy X have insufficient temperature resistance, low high temperature mechanical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/05B22F1/00B22F10/28B22F3/15B33Y70/00B33Y10/00B33Y80/00
CPCB22F1/0003C22C19/056B22F3/15B33Y70/00B33Y10/00B33Y80/00
Inventor 王睿毕中南夏天张少明孙广宝罗鑫陈玺圳张鹏
Owner 常州钢研极光增材制造有限公司
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