tib-containing for 3d printing 2 /tic aluminum-zinc-magnesium-copper alloy powder and preparation method thereof

A technology of alloy powder and 3D printing, applied in metal processing equipment, transportation and packaging, additive processing, etc., can solve problems such as thermal cracking and coarse grains, and achieve good wear resistance, fine grain size, and particle size distribution concentrated effect

Active Publication Date: 2022-05-24
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The literature (Nature, 2017, 549:365) shows that Al-Zn-Mg-Cu alloys are very prone to problems such as coarse grains and hot cracks during the 3D printing process. Therefore, reports on 3D printing of Al-Zn-Mg-Cu alloys have been relatively less

Method used

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  • tib-containing for 3d printing <sub>2</sub> /tic aluminum-zinc-magnesium-copper alloy powder and preparation method thereof
  • tib-containing for 3d printing <sub>2</sub> /tic aluminum-zinc-magnesium-copper alloy powder and preparation method thereof
  • tib-containing for 3d printing <sub>2</sub> /tic aluminum-zinc-magnesium-copper alloy powder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] In this example, in terms of weight percentage, the TiB-containing material used for 3D printing 2 The formula ratio of aluminum-zinc-magnesium-copper alloy powder of / TiC is as follows: TiB 2 : 8%; Zn: 9.15%; Mg: 2.5%; Cu: 1.16%; Zr: 0.11%; Sc: 0.17%; the balance is aluminum.

[0046] The TiB-containing material for 3D printing of the present embodiment 2 The preparation method of the aluminum-zinc-magnesium-copper alloy powder of TiC comprises the following steps:

[0047] (1) Put pure aluminum into the intermediate frequency induction melting furnace for heating and melting, adjust the melt temperature to 760°C, and add pure Zn, pure Cu, Al-Mg master alloy, and Al-Zr master alloy to the aluminum melt according to the preparation components. and Al-Sc master alloy, stirring and holding for ~30min to obtain an aluminum-zinc-magnesium-copper alloy melt with uniform composition; wherein, in the Al-Mg master alloy, the mass percentage of Mg is 5%, and the balance is Al;...

Embodiment 2

[0060] In this example, in terms of weight percentage, the TiB-containing material used for 3D printing 2 The formula ratio of aluminum-zinc-magnesium-copper alloy powder of TiC is as follows: TiB 2: 15%; TiC: 0.5%; Zn: 10%; Mg: 2.5%; Cu: 2.5%; Zr: 0.15%; Sc: 0.25%; the balance is aluminum.

[0061] The TiB-containing material for 3D printing of the present embodiment 2 The preparation method of the aluminum-zinc-magnesium-copper alloy powder of TiC comprises the following steps:

[0062] (1) Put pure aluminum into the intermediate frequency induction melting furnace for heating and melting, adjust the melt temperature to 780°C, and add pure Zn, pure Cu, Al-Mg master alloy and Al-Zr master alloy to the aluminum melt according to the preparation components and Al-Sc master alloy, stirring and holding for 30min to obtain an aluminum-zinc-magnesium-copper alloy melt with uniform composition; among them, in the Al-Mg master alloy, the mass percentage of Mg is 1%, and the balance...

Embodiment 3

[0075] In this example, in terms of weight percentage, the TiB-containing material used for 3D printing 2 The formula ratio of aluminum-zinc-magnesium-copper alloy powder of TiC is as follows: TiB 2 : 6%; Zn: 5%; Mg: 1.5%; Cu: 1%; Zr: 0.08%; Sc: 0.1%; the balance is aluminum.

[0076] In this example, the TiB-containing material used for 3D printing 2 The preparation method of the aluminum-zinc-magnesium-copper alloy powder of TiC, the steps are as follows:

[0077] (1) Press for 3D printing containing TiB 2 / TiC Al-Zn-Mg-Cu alloy powder ratio Weigh the raw materials, put pure aluminum into the intermediate frequency induction melting furnace, heat and melt, adjust the melt temperature to 730 ℃, add pure Zn, Pure Cu, Al-Mg master alloy, Al-Zr master alloy and Al-Sc master alloy, stir and hold for 30±10min to obtain a uniform Al-Zn-Mg-Cu alloy melt; among them, in the Al-Mg master alloy, Mg The mass percentage of Zr is 5%, and the balance is Al; in the Al-Zr master alloy, t...

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Abstract

A TiB2 / TiC-containing Al-Zn-Mg-Cu alloy powder for 3D printing and a preparation method thereof belong to the field of metal matrix composite material powder preparation and 3D printing. The TiB-containing material for 3D printing 2 / TiC aluminum-zinc-magnesium-copper alloy powder, including the following components and the mass percentage of each component: TiB 2 6~15%; TiC 0~0.5%; Zn 5~10%; Mg 1.5~2.5%; Cu1~2.5%; Zr 0.08~0.15%; Sc 0.1~0.25%; the balance is aluminum and unavoidable impurities; The preparation method is as follows: after refining the alloy, casting it into an ingot, heating and melting it, and performing gas atomization to make powder. 2 / TiC Al-Zn-Mg-Cu alloy powder can have high sphericity, concentrated powder particle size distribution, TiB 2 / TiC particle size is fine and evenly distributed.

Description

technical field [0001] The invention belongs to the technical field of metal matrix composite material powder preparation and 3D printing, and in particular relates to a TiB-containing material for 3D printing 2 / TiC aluminum-zinc-magnesium-copper alloy powder and its preparation method. Background technique [0002] Particle reinforced aluminum matrix composites can combine the advantages of high plasticity and toughness of aluminum matrix and high strength and high modulus of reinforcing phase particles, so that the overall particle reinforced aluminum matrix composites have high specific strength, specific modulus and wear resistance. Therefore, it has broad application prospects in aerospace, transportation, military and other fields. At present, there are two main methods for preparing particle-reinforced aluminum matrix composites: external particle method and in-situ autogenous method. Among them, the basic idea of ​​the external particle method is: firstly prepare ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/12B22F1/065B22F1/052B33Y70/10C22C21/10C22C21/00C22C32/00C22C1/10B22F9/08
CPCB22F1/0003B33Y70/10C22C21/10C22C21/00C22C32/0047B22F9/082
Inventor 江鸿翔何杰赵九洲
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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