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Titanium and titanium alloy surface carbon nanomaterial modified ti-al-si-c coating and preparation method thereof

A ti-al-si-c, carbon nanomaterial technology, applied in metal material coating process, coating, hot dip plating process and other directions, can solve problems such as coating cracks, achieve easy production and processing, excellent high temperature performance, The effect of promoting the application

Active Publication Date: 2022-05-20
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For Ti-Al-Si coatings, although the number of cracks on the coating is reduced, cracks in this coating are inevitable

Method used

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  • Titanium and titanium alloy surface carbon nanomaterial modified ti-al-si-c coating and preparation method thereof
  • Titanium and titanium alloy surface carbon nanomaterial modified ti-al-si-c coating and preparation method thereof
  • Titanium and titanium alloy surface carbon nanomaterial modified ti-al-si-c coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034](1) Configuration of added slurry: 5 parts of graphene powder are dispersed in 95 parts of N-methylpyrrolidone as a suspension, and the suspension is ultrasonically dispersed for 30 min. Subsequently, polyvinylidene fluoride with a mass of 0.5% of the suspension was added as a thickener, stirred evenly and then placed in the oven at 80 °C for 30 min to obtain the added slurry.

[0035] (2) Take step (1) The added slurry obtained by the configuration is uniformly applied to the inner surface of the silica quartz vessel enlarged in proportion to 1.2 times according to the shape of the TC4 titanium alloy workpiece, the thickness of the slurry layer is 100μm, and then dried in the vacuum drying box and placed for use.

[0036] (3) The surface of the TC4 titanium alloy workpiece is polished and smoothed, and the pickling alkali wash removes the surface oxide scale and oil stain, and then dried in the vacuum drying box and placed for use.

[0037] (4) Under the condition of inert ...

Embodiment 2

[0041] (1) Configuration of added slurry: 5 parts of graphene powder are dispersed in 95 parts of N-methylpyrrolidone as a suspension, and the suspension is ultrasonically dispersed for 30 min. Subsequently, polyvinylidene fluoride with a mass of 0.5% of the suspension was added as a thickener, stirred evenly and then placed in the oven at 80 °C for 30 min to obtain the added slurry.

[0042] (2) Take step (1) The added slurry obtained by the configuration is uniformly applied to the inner surface of the silica quartz vessel enlarged in proportion to 1.2 times according to the shape of the TC4 titanium alloy workpiece, the thickness of the slurry layer is 100μm, and then dried in the vacuum drying box and placed for use.

[0043] (3) The surface of the TC4 titanium alloy workpiece is polished and smoothed, and the pickling alkali wash removes the surface oxide scale and oil stain, and then dried in the vacuum drying box and placed for use.

[0044] (4) Under the condition of inert ...

Embodiment 3

[0048] (1) Configuration of added slurry: 5 parts of graphene powder are dispersed in 95 parts of N-methylpyrrolidone as a suspension, and the suspension is ultrasonically dispersed for 30 min. Subsequently, polyvinylidene fluoride with a mass of 0.5% of the suspension was added as a thickener, stirred evenly and then placed in the oven at 80 °C for 30 min to obtain the added slurry.

[0049] (2) Take step (1) The added slurry obtained by the configuration is uniformly applied to the inner surface of the silica quartz vessel enlarged in proportion to 1.2 times according to the shape of the TC4 titanium alloy workpiece, the thickness of the slurry layer is 100μm, and then dried in the vacuum drying box and placed for use.

[0050] (3) The surface of the TC4 titanium alloy workpiece is polished and smoothed, and the pickling alkali wash removes the surface oxide scale and oil stain, and then dried in the vacuum drying box and placed for use.

[0051] (4) Under the condition of inert...

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Abstract

The invention belongs to the field of metal surface coatings, and specifically provides a Ti-Al-Si-C coating modified by carbon nanomaterials on the surface of titanium and titanium alloys and a preparation method thereof. The method is: first clean and dry the surface of titanium and titanium alloy; then disperse carbon nanomaterials in a solvent by ultrasonic treatment and add an appropriate amount of thickener to prepare slurry; finally, hot-dip titanium and titanium alloy on the prepared The in-situ reaction of the slurry in the aluminum-silicon molten pool forms a layer with Ti on the surface of titanium and titanium alloys. 3 AlC 2 phase layer, Ti(Al,Si) 3 Phase layer and Al-Si phase layer coating. The obtained Ti-Al-Si-C coating has the characteristics of good mechanical properties, excellent high-temperature performance, easy production and processing, and the like.

Description

Technical field [0001] The present invention belongs to the field of metal surface coating, particularly relates to a titanium and titanium alloy surface carbon nanomaterial modified Ti-Al-Si-C coating and preparation method thereof. Background [0002] Titanium and titanium alloys have the advantages of low density, high specific strength, good heat resistance, excellent corrosion resistance, etc., and are a high-temperature material with great application prospects, which is widely used in high-temperature parts such as high-pressure compressors and turbine blades of aero engines. However, when the service temperature of titanium and titanium alloys is higher than 600 °C, the high temperature performance of titanium and titanium alloys drops sharply, which is one of the important reasons for restricting the application and development of titanium and titanium alloys. Therefore, it is necessary to treat the surface of titanium and titanium alloys to improve the high temperature ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C2/12C23C22/70
CPCC23C2/12C23C22/70
Inventor 苏旭平施东明涂浩王建华刘亚吴长军
Owner CHANGZHOU UNIV
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