Multifunctional integrated Fe-Al-Ta eutectic composite 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 poor stability and low utilization rate, and achieve the effects of prolonging service life, improving utilization rate, and expanding applications

Active Publication Date: 2020-03-24
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 multifunctiona...

Method used

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  • Multifunctional integrated Fe-Al-Ta eutectic composite and preparation method thereof
  • Multifunctional integrated Fe-Al-Ta eutectic composite and preparation method thereof
  • Multifunctional integrated Fe-Al-Ta eutectic composite and preparation method thereof

Examples

Experimental program
Comparison scheme
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. like 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 of...

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

The invention provides a multifunctional integrated Fe-Al-Ta eutectic composite and a preparation method of the multifunctional integrated Fe-Al-Ta eutectic composite. An electron beam floating zone melting technology, a spray coating technology, a photochemical deposition technology and the like are combined; in the process of preparing the composite, by changing the solidification rate of the Fe-Al-Ta eutectic composite and utilizing the spray coating technology, the photochemical deposition technology and the like, specific machining is conducted on a certain zone of the composite, the zonecan be any shape or pattern, so that the prepared composite has the needed specific performance in the patterned zone, and then the composite integrating multiple functions is prepared. In this way,by combining the three technologies, firstly, the solidification structure of the composite is changed by changing the solidification rates of the different zones, specific machining is conducted on acertain zone by the adoption of the spray coating technology and the photochemical deposition technology according to actual demands, and then the prepared sample integrates multiple functions. The performance of the composite is integrated, concise and diversified, and the comprehensive performance of the composite is 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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IPC IPC(8): C22C38/06C22C38/12C22C33/04B22D27/04C23C16/48C23C16/30C23C16/34C23C16/40C23C16/24B05D7/14
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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