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FeCrVTiMn high-entropy alloy and method for carrying out laser additive manufacturing by adopting same

A high-entropy alloy, laser scanning technology, applied in the field of alloy powder

Inactive Publication Date: 2019-07-05
中广核高新核材科技(苏州)有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no method on how to use high-entropy alloy powders for laser additive manufacturing.

Method used

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  • FeCrVTiMn high-entropy alloy and method for carrying out laser additive manufacturing by adopting same
  • FeCrVTiMn high-entropy alloy and method for carrying out laser additive manufacturing by adopting same
  • FeCrVTiMn high-entropy alloy and method for carrying out laser additive manufacturing by adopting same

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] First, the ingredients are prepared according to the following proportions, including 21.4% iron, 19.9% ​​chromium, 19% vanadium, 18.7% titanium and 21.0% manganese in weight percentage.

[0061] Add the prepared metal iron, metal chromium, metal vanadium, metal titanium, and metal manganese into the intermediate frequency induction furnace, and heat it to melt it. The temperature in the 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. The alloy melt is atomized to prepare alloy powder, the atomization medium is argon, and the atomization pressure is 4MPa. The alloy powder is dried with a far-infrared dryer, and the drying temperature is 210°C. Then, the powder with a particle size ranging from 100 to 350 meshes is sifted out by a powder sieving machine as the finished powder.

[0062] After the above-mentioned finished powd...

Embodiment 2

[0067] First, the ingredients are prepared according to the following proportions, including 20.0% iron, 19.5% chromium, 18.5% vanadium, 19.0% titanium and 23.0% manganese in weight percentage.

[0068] Add the prepared metal iron, metal chromium, metal vanadium, metal titanium, and metal manganese into the intermediate frequency induction furnace, and heat it to melt with electricity. The temperature in the 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. The alloy melt is atomized to prepare alloy powder, the atomization medium is argon, and the atomization pressure is 4MPa. The alloy powder is dried with a far-infrared dryer, and the drying temperature is 210°C. Then, the powder with a particle size ranging from 100 to 350 meshes is sifted out by a powder sieving machine as the finished powder.

[0069] After the above-mentioned...

Embodiment 3

[0071] First, the ingredients are prepared according to the following proportions, including 22.5% iron, 20.5% chromium, 19% vanadium, 18.0% titanium and 20.0% manganese in weight percentage.

[0072] Add the prepared metal iron, metal chromium, metal vanadium, metal titanium, and metal manganese into the intermediate frequency induction furnace, and heat it to melt with electricity. The temperature in the 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. The alloy melt is atomized to prepare alloy powder, the atomization medium is argon, and the atomization pressure is 4MPa. The alloy powder is dried with a far-infrared dryer, and the drying temperature is 210°C. Then, the powder with a particle size ranging from 100 to 350 meshes is sifted out by a powder sieving machine as the finished powder.

[0073] After the above-mentioned f...

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Abstract

The invention relates to the technical field of alloy powder and particularly relates to a FeCrVTiMn high-entropy alloy and a method for carrying out laser additive manufacturing of a complicated flowchannel structure by adopting the same. The FeCrVTiMn high-entropy alloy comprises: 20 to 23% of iron, 18 to 21% of chromium, 16 to 19% of vanadium, 17 to 20% of titanium and 20 to 23% of manganese.A nuclear power structure material manufactured by FeCrVTiMn high-entropy alloy powder for the laser additive manufacturing has excellent high-temperature resistance, excellent high-temperature mechanical properties, excellent neutron irradiation resistance and a cheap price.

Description

technical field [0001] The invention relates to the technical field of alloy powders, in particular to a FeCrVTiMn high-entropy alloy and a method for using it for laser additive manufacturing. Background technique [0002] At present, parts with complex flow channel structures are generally produced by casting or machining assembly methods, but for some extremely complex variable cross-section flow channels, casting and machining methods are more difficult to produce, and casting The performance of the structure is poor and cannot meet the high-temperature service requirements. Machining and assembly are mainly carried out by welding, and similar cast weld structures also exist. All in all, traditional casting and machining cannot produce high-quality and high-performance heat-resistant alloy parts with complex flow channel structures. Therefore, it is proposed to use laser additive manufacturing to prepare complex flow channel structures, avoid the precipitation of Navis p...

Claims

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Application Information

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IPC IPC(8): B22F1/00B22F3/105B33Y10/00B33Y70/00C22C30/00
CPCB22F1/0003C22C30/00B33Y70/00B33Y10/00B22F10/00B22F10/36B22F10/64B22F10/28B22F10/32Y02P10/25
Inventor 夏志新成鹏李剑何晓东单永东
Owner 中广核高新核材科技(苏州)有限公司
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