SiC fiber variable angle reinforced Ti base composite pipe shaft and preparation method thereof

A composite material tube and composite material technology are applied in the field of SiC fiber variable-angle reinforced Ti-based composite material tube shaft parts and their preparation, which can solve the problems of poor shear resistance and torsional resistance, and the inability to achieve densification of the entire layer of precursor wires. It has little practical significance, etc., to achieve the effect of improving mechanical properties, reducing quality, and reducing the degree of anisotropy

Active Publication Date: 2015-12-09
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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Problems solved by technology

A few unpublished materials show that the 90° multi-layer winding of the precursor filament can be completed by a numerical control winding machine, and then a simple shaft of SiC fiber-reinforced Ti-based composite can be prepared. However, the fiber reinforcement angle of this component is perpendicular to the axial direction of the component. , its anti-shear and anti-torsion proper...

Method used

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  • SiC fiber variable angle reinforced Ti base composite pipe shaft and preparation method thereof
  • SiC fiber variable angle reinforced Ti base composite pipe shaft and preparation method thereof
  • SiC fiber variable angle reinforced Ti base composite pipe shaft and preparation method thereof

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Embodiment 1

[0048] SiC f / TC17 composite material[45°,-45°] 3 The preparation steps and process of the tubular shaft parts are as follows:

[0049] 1) Use alcohol to clean the surface of the continuous SiC fiber, then wind the fiber on the sample holder of the magnetron sputtering equipment, put it into the magnetron sputtering equipment, use TC17 titanium alloy target; mechanical pump, molecular pump pre-evacuation chamber , the vacuum degree is better than 1×10 -3 After Pa, heat the vacuum chamber at 500°C and bake it. When the vacuum degree reaches the requirement, flow Ar gas, rotate the sample holder at a speed of 20 rpm, start the sputtering power supply, and start magnetron sputtering to produce SiC / TC17 precursor wire. , the target-base distance is 30mm, the single target sputtering power is 1500W, the magnetron sputtering time is 12 hours, after the sputtering is finished, it is lowered to room temperature, and the precursor wire is taken out. The diameter of the precursor ...

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Abstract

The invention discloses a SiC fiber variable angle reinforced Ti base composite pipe shaft and a preparation method thereof, and belongs to the technical field of preparation of composites. A variable angle SiCf/Ti base composite middle layer is arranged in a Ti alloy pipe wall of the pipe shaft, and comprises more than three SiC fiber layers; and included angles between the axial direction of SiC fibers in the SiC fiber layers and the axial direction of the pipe shaft are within -90 to 90 degrees. The fiber reinforced angle o the pipe shaft realizes the variable angle adjustment; and the variable angle reinforcement mode effectively reduces the pipe shaft anisotropy degree, improves the warping rigidity, the transverse rigidity and the impact resistance of the composite pipe shaft, and facilitates to widen the application range of the SiCf/Ti base composite pipe shaft.

Description

technical field [0001] The invention relates to the technical field of composite material preparation, in particular to a SiC fiber variable-angle reinforced Ti-based composite material pipe shaft and a preparation method thereof. Background technique [0002] Ti-based composites reinforced with continuous SiC fibers (SiC f / Ticomposites, TMCs) as the main representative of the application potential of metal matrix composites in aero-engines and other aviation and aerospace fields has clearly shown a rapid upward trend. Among them, Ti-based composite materials account for about 45%, and various parts will use TMCs. TMCs has high specific strength, high specific stiffness, good high temperature resistance, creep resistance and fatigue resistance, and is an ideal high temperature lightweight structural material. The developed aero-engine TMCs parts replace the original Ti alloy parts, and the weight reduction effect can reach 30% to 40%, and its fatigue life and durability w...

Claims

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Application Information

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IPC IPC(8): B22F5/12B22F7/08
Inventor 王玉敏张旭杨青杨锐
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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