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Preparation method of Ti/Al3Ti layered composite material

A layered composite material and composite plate technology, which is applied in the field of composite material preparation, can solve the problems of easy occurrence of cracks, low efficiency, weakened friction effect on the surface of materials, etc., so as to improve the interface bonding quality, improve the reaction efficiency, and improve the bonding quality. Effect

Inactive Publication Date: 2019-01-15
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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AI Technical Summary

Problems solved by technology

[0005] In the prior art, when Ti / Al composite material preform is prepared by ultrasonic consolidation, due to the limitation of its power, the ultrasonic energy cannot penetrate the thicker metal sheet, and it is not enough to make the high-strength alloy produce micro-plasticity in the local micro-area. At the same time, the limited power weakens the friction effect on the surface of the material, and it is difficult to achieve the crushing effect on the oxide film, resulting in a significant reduction in the promotion of the atomic diffusion ability. Secondly, in the subsequent reaction process, the efficiency is low and cracks are prone to appear and other defects

Method used

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  • Preparation method of Ti/Al3Ti layered composite material

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Embodiment 1

[0023] Such as figure 1 Show, a kind of preparation method of Ti / Ai3Ti layered composite material, comprise the following steps, the first step, sample cleaning, sample cleaning step is to select titanium or aluminum foil material as raw material, at first foil material is cleaned, removes surface stain, Clean the foil with acetone and then alcohol.

[0024] The second step is pulse current assisted ultrasonic consolidation forming. The pulse current assisted ultrasonic consolidation forming step is to make the original plate with a thickness of 0.1-0.2 mm according to Ti-Al-Ti-Al...Ti or Al-Ti-Al-Ti... ...The sequence of Al is superimposed one by one by ultrasonic consolidation. The ultrasonic consolidation process is to fix the aluminum foil on the ultrasonic consolidation forming equipment and set the ultrasonic consolidation parameters as speed 5~30mm / s, amplitude 15~30μm, The pressure is 0.5~3kN, the titanium foil is consolidated on the aluminum foil and the ultrasonic c...

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Abstract

The invention provides a preparation method of a Ti / Al3Ti layered composite material. The preparation method is characterized by comprising the following steps that S1, a sample is cleaned; S2, pulsecurrent auxiliary ultrasonic consolidation forming is carried out; S3, annealing treatment is carried out; and S4, pulse current auxiliary hot-pressing sintering is carried out. According to the preparation method, the atomic diffusion in the ultrasonic consolidation process can be promoted, the Ti / Al interface bonding quality is improved, the follow-up in-situ reaction test is facilitated, Ti / Alcan be activated through the instantaneous high energy, the reaction efficiency is improved, the crack defect is overcome, and then the Ti / Al3Ti layered composite material with high density and good bonding quality is obtained.

Description

technical field [0001] The invention relates to the technical field of composite material preparation, in particular to a Ti / Al 3 Preparation method of Ti layered composite material. Background technique [0002] Intermetallic compound-based Ti / Al based on titanium toughening 3 Ti layered composite material is a new type of high-performance composite material developed on the basis of the multi-scale and multi-level strengthening and toughening mechanism of natural biological shell nacre. A Ti layer with better toughness is added to the compound Al3Ti sheet matrix, and a good combination of strength and toughness is achieved through the optimal design of the interlayer structure and the toughening mechanism of the sheet. Ti / Al 3 The unique lamination structure and special failure mechanism of Ti layered composites make them have good impact resistance and energy absorption properties, and have good application prospects. [0003] Ultrasonic consolidation layered manufact...

Claims

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Application Information

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IPC IPC(8): B22F7/02B22F3/14
CPCB22F3/14B22F7/02B22F2003/145
Inventor 韩玉杰徐严谨王耀奇侯红亮
Owner AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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