FeCrCuTiV high-entropy alloy powder for laser melting deposition manufacturing and preparation method of FeCrCuTiV high-entropy alloy powder

A technology of laser melting deposition and high-entropy alloy, which is applied in the direction of additive manufacturing, metal processing equipment, and energy efficiency improvement. It can solve the problems of low activation performance, reduce residual stress level, avoid precipitation, and meet manufacturing requirements.

Active Publication Date: 2019-07-02
SUZHOU UNIV
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the characteristics of the laser additive manufacturing process and the difficulty of combining tungsten steel heterogeneous parts, the current alloy powder still cannot meet its process requirements, and the manufacturing requirements of low activation performance in nuclear fusion devices require laser additive manufacturing. Further Composition Optimum Design Research on High Entropy Alloy Powders for Metal Manufacturing

Method used

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  • FeCrCuTiV high-entropy alloy powder for laser melting deposition manufacturing and preparation method of FeCrCuTiV high-entropy alloy powder
  • FeCrCuTiV high-entropy alloy powder for laser melting deposition manufacturing and preparation method of FeCrCuTiV high-entropy alloy powder
  • FeCrCuTiV high-entropy alloy powder for laser melting deposition manufacturing and preparation method of FeCrCuTiV high-entropy alloy powder

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preparation example Construction

[0038] The present invention also provides a method for preparing the above-mentioned FeCrCuTiV high-entropy alloy powder for manufacturing by laser melting deposition, comprising the following process steps: batching→smelting→vacuum atomization→drying→sieving, specifically as follows:

[0039] (1) Ingredients:

[0040] Use metal iron, metal chromium, metal copper, metal titanium, metal vanadium as raw materials, and make ingredients according to the target ingredients;

[0041] (2) Melting:

[0042] (2.1) Add the prepared metal iron, metal chromium, metal copper, metal titanium, and metal vanadium into the intermediate frequency induction furnace, and heat it to melt it;

[0043] In this smelting step, a part of the ingredients can be added to the intermediate frequency induction furnace for smelting first, and then the remaining ingredients can be sequentially added to the molten alloy solution as supplementary materials. When the supplementary materials are added, the temp...

Embodiment 1

[0059] The ingredients are prepared according to the following proportions, which include: 19.2% of chromium, 22.3% of copper, 17.7% of titanium, 19.0% of vanadium and 21.8% of iron in terms of weight percentage.

[0060] Add the prepared metal iron, metal chromium, metal copper, metal titanium, and metal vanadium into the intermediate frequency induction furnace, and heat it with electricity to melt it. The temperature in the intermediate frequency induction furnace is controlled at 1520°C. After the ingredients are adjusted to pass before the furnace, it is released from the furnace, and the temperature of the furnace is 1460°C.

[0061] The alloy melt is atomized to prepare alloy powder, the atomization medium is argon, and the atomization pressure is 4MPa.

[0062] A far-infrared dryer is used to dry the atomized alloy powder, and the drying temperature is 210°C. Then, the powder with a particle size ranging from 100 to 350 meshes is screened out by a powder sieving machi...

Embodiment 2

[0065] The ingredients are prepared according to the following proportions, which include: chromium 17.8%, copper 24.8%, titanium 18.7%, vanadium 19.4%, iron 19.3%.

[0066] Add the prepared metal iron, metal chromium, metal copper, metal titanium, and metal vanadium into the intermediate frequency induction furnace, and heat it with electricity to melt it. The temperature in the intermediate frequency induction furnace is controlled at 1520°C. After the ingredients are adjusted to pass before the furnace, it is released from the furnace, and the temperature of the furnace is 1460°C.

[0067] The alloy melt is atomized to prepare alloy powder, the atomization medium is argon, and the atomization pressure is 4MPa.

[0068] A far-infrared dryer is used to dry the atomized alloy powder, and the drying temperature is 210°C. Then, the powder with a particle size ranging from 100 to 350 meshes is screened out by a powder sieving machine as the finished powder.

[0069] After the a...

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Abstract

The invention discloses FeCrCuTiV high-entropy alloy powder for laser melting deposition manufacturing and a preparation method of the FeCrCuTiV high-entropy alloy powder. The high-entropy alloy powder is prepared from the following components in percentage by weight: 17-20% of Cr, 22-25% of Cu, 16-19% of Ti, 17-20% of V and 19-22% of Fe. The differences of the thermal expansion coefficient, the melting point, the elastic modulus and the like of a tungsten / steel interface can be effectively relieved through the solid solution effect of alloy elements such as Ti, V and Cu of a high-entropy alloy, the level of residual stress at a heterogeneous interface in the laser melting deposition preparation process can be reduced, precipitation of a Laves phase is avoided, and the manufacturing requirements of tungsten steel heterogeneous parts for a fusion reactor can be met.

Description

technical field [0001] The invention relates to a FeCrCuTiV high-entropy alloy powder for laser melting deposition manufacturing and a preparation method thereof, in particular to a FeCrCuTiV high-entropy alloy powder for laser melting deposition manufacturing and a preparation method suitable for manufacturing tungsten steel heterogeneous parts for fusion reactors . Background technique [0002] Plasma-facing components (PFCs) play a key role in fusion reactors, which are subject to harsh conditions such as periodic thermal loads and neutron irradiation, requiring safety, reliability and long life. Metal tungsten and its alloys are considered as plasma-facing candidate materials in nuclear fusion reactors due to their excellent properties, and metal copper and low-activation steel are candidate heat sink materials. Fusion reactor devices urgently need to develop tungsten steel PFCs components with complex flow channel structures. At present, tungsten steel heterogeneous p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C30/02C22C1/04B22F9/08C23C24/10
CPCC22C30/02C22C9/00C22C1/0425B22F9/082C23C24/106B22F2009/0824B22F2009/0848B33Y40/10B33Y70/00B22F10/25B22F2999/00C22C1/04B33Y10/00B22F1/05Y02P10/25B22F2201/11B22F2202/07
Inventor 夏志新蒋文娟陈磊白穆
Owner SUZHOU UNIV
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