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A kind of multifunctional integrated fe-al-ta eutectic composite material and preparation method thereof

A technology of fe-al-ta and composite materials, applied in the field of process technology, can solve problems such as low utilization rate and poor stability, and achieve the effect of improving utilization rate, prolonging service life and expanding application

Active Publication Date: 2020-12-01
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the shortcomings of existing materials such as low utilization rate and poor stability, improve the performance of the material, and make the device have multiple functions, the purpose of the present invention is to provide a multifunctional integrated Fe-Al-Ta eutectic composite material and its preparation method , Fe-Al-Ta composite materials are prepared by electron beam suspension area melting technology, and then a specific area is modified by spraying, photochemical deposition and other technologies

Method used

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  • A kind of multifunctional integrated fe-al-ta eutectic composite material and preparation method thereof
  • A kind of multifunctional integrated fe-al-ta eutectic composite material and preparation method thereof
  • A kind of multifunctional integrated fe-al-ta eutectic composite material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0068] 1) Install the wire-cut material vertically in the clamping structure with clamps, in a vacuum of 1.4-1.6×10 -4 mbar, conduction ratio of 30%, accelerating voltage of 8.7KV, emission current of 11mA electron beam suspension area melting equipment (1600 ℃) to conduct directional solidification experiments to melt the material area.

[0069] 2) When the material is in service, it is required that its high temperature creep resistance, fracture resistance and room temperature plasticity are good, then by controlling the drawing rate, it is directional solidified at a low solidification rate from bottom to top, that is, the solidification rate is 0~ 6μm / s. In this way, a bulk material with lamellar eutectic microstructure can be obtained, which has high high temperature creep resistance. Such as Figure 5 (a).

[0070] 3) When the surface of the material part does not need the properties of metal, such as Figure 5 (a) As shown in the square area on the front (the shape...

Embodiment 2

[0072] 1) Install the wire-cut material vertically in the clamping structure with clamps, in a vacuum of 1.4-1.6×10 -4 mbar, conduction ratio of 30%, accelerating voltage of 8.7KV, emission current of 11mA electron beam suspension area melting equipment (1600 ℃) to conduct directional solidification experiments to melt the material area.

[0073] 2) When the material is in service, part of it is required to have good high temperature creep resistance, fracture resistance and room temperature plasticity, and the other part requires good plasticity, toughness and fatigue resistance, etc., by controlling the pulling rate, bottom-up Perform directional solidification. The parts that require high temperature creep resistance, fracture resistance and room temperature plasticity are solidified at a low rate, and the parts that require good plasticity, toughness and fatigue resistance are solidified at a higher rate. For example, the lower half of the material is solidified at a low ...

Embodiment 3

[0076] 1) Install the wire-cut material vertically in the clamping structure with clamps, in a vacuum of 1.4-1.6×10 -4 mbar, conduction ratio of 30%, accelerating voltage of 8.7KV, emission current of 11mA electron beam suspension area melting equipment (1600 ℃) to conduct directional solidification experiments to melt the material area.

[0077] 2) When the material is in service, if it is required to have three different properties and have more diversified properties, the sample area is melted by the movement of the electron gun, and directional solidification is carried out from bottom to top. Solidify at a higher rate (200-600μm / s) in parts that require plasticity, toughness and fatigue resistance; solidify at a low rate (≤6μm / s) in parts that require high temperature creep resistance, fracture resistance and room temperature plasticity ; High-speed (600-900μm / s) solidification is required for parts with high wear resistance and high strength. For example, the material i...

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Abstract

A multi-functional integrated Fe-Al-Ta eutectic composite material and its preparation method, using electron beam suspension zone smelting technology, spraying and photochemical deposition technology combined, in the process of preparing materials by changing Fe-Al-Ta eutectic The solidification rate of the crystalline composite material, and the use of spraying and photochemical deposition techniques to process a certain area of ​​the material. This area can be in any shape or pattern, so that the prepared material has the required specific properties in the patterned area. In this way, a material with multiple functions integrated can be prepared. Therefore, through the combination of three technologies, first change the solidification rate of different regions to change the solidification structure of the material, and then use spraying and photochemical deposition techniques in a specific region for specific processing according to actual needs. The sample set has multiple functions in one. The performance of materials is centralized, simplified and diversified, and the comprehensive performance is thus improved.

Description

technical field [0001] The invention belongs to the field of metallurgy technology and relates to a specific processing technology for a specific region of Fe-Al-Ta eutectic composite material, in particular to the technology of electron beam regional melting, spray coating and photochemical deposition. Background technique [0002] With the rapid development of modern technology, components continue to develop in the direction of miniaturization, centralization, and large storage capacity. At present, although composite materials with excellent properties can be prepared by various preparation techniques, there are many problems in practical applications. Therefore, materials with good comprehensive properties are often required in practical applications, which puts forward higher requirements for the processing and preparation of materials. The present invention concentrates material properties in practical application, not only can integrate multiple functions of the com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C16/00
CPCB05D7/14B05D2202/10B22D27/045C22C33/04C22C38/06C22C38/12C23C16/24C23C16/306C23C16/345C23C16/402C23C16/483
Inventor 来园园崔春娟任驰强邓力刘艳云王丛
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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