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Method of synthesizing titanium carbon nitride thick film by using electrolytic bath micro arc plasma

A technology of titanium carbonitride thick film and titanium carbonitride film, which is applied in the field of ion synthesis of titanium carbonitride thick film, can solve the problems of loss of strengthening effect and fragile film layer, and achieve high bonding strength and wear resistance Excellent effect

Inactive Publication Date: 2007-05-30
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common disadvantage of the above methods is that the thickness of the titanium carbide, titanium nitride or titanium carbonitride film formed on the surface of titanium and titanium alloy is relatively thin, and the film layer is fragile under a large load and loses the strengthening effect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0006] Embodiment 1: In the electrolytic solution prepared by the ethanolamine of 60wt% and the formamide of 40wt%, with titanium or titanium alloy as cathode, stainless steel as anode, adopt pulse power supply to be 450V at voltage, frequency is 100Hz, duty ratio is Under the conditions of 10%, the distance between cathode and anode plates is 8cm, micro-arc plasma treatment is performed on titanium or titanium alloy, and the temperature of electrolyte is maintained at 45°C. After micro-arc plasma treatment for 1 hour, a thickness greater than 10 μm can be formed on the surface of titanium or titanium alloy. titanium carbonitride film.

Embodiment 2

[0007] Embodiment 2: In the electrolytic solution prepared by 70wt% ethanolamine and 30wt% formamide, with titanium or titanium alloy as the cathode, stainless steel as the anode, the pulse power supply is used at a voltage of 500V, a frequency of 50Hz, and a duty cycle of Under the conditions of 20%, the distance between cathode and anode plates is 10cm, micro-arc plasma treatment is carried out on titanium or titanium alloy, and the temperature of electrolyte is maintained at 25°C. After micro-arc plasma treatment for 1.5 hours, a thickness greater than 12 μm can be formed on the surface of titanium or titanium alloy. titanium carbonitride film.

Embodiment 3

[0008] Embodiment 3: In the electrolytic solution prepared by 80wt% ethanolamine and 20wt% formamide, with titanium or titanium alloy as the cathode, stainless steel as the anode, the pulse power supply is used at a voltage of 480V, a frequency of 200Hz, and a duty cycle of Under the conditions of 16%, the distance between cathode and anode plates is 12cm, micro-arc plasma treatment is performed on titanium or titanium alloy, and the temperature of the electrolyte is maintained at 50°C. After micro-arc plasma treatment for 2 hours, a thickness greater than 15 μm can be formed on the surface of titanium or titanium alloy. titanium carbonitride film.

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Abstract

A process for preparing thick titanium carbonitride film on the surface of Ti or Ti-alloy by microarc plasma synthesis in electrolytic liquid features that the pulse voltage (450-650 v and 50-500 Hz) is applied across the cathode made of Ti or Ti-alloy and the anode made of stainless steel in the electrolytic liquid prepared from ethanolamine and formamide at 25-70 deg.C for 1-3 hr. Its advantages are high adhesion and hardness and high antiwear nature.

Description

technical field [0001] The invention relates to a method for synthesizing a titanium carbonitride thick film, in particular to a method for synthesizing a titanium carbonitride thick film by micro-arc plasma in an electrolyte used for titanium and titanium alloy components. Background technique [0002] Titanium and titanium alloys have the advantages of low density, high specific strength, and good corrosion resistance, and have important applications in aerospace, navigation, chemical industry, machinery, metallurgy, and medical treatment. However, titanium and titanium alloys have low hardness and poor wear resistance, which seriously affect their performance. Attaching a hard film such as titanium carbide, titanium nitride or titanium carbonitride is a common method to improve the hardness and wear resistance of titanium and titanium alloy components. At present, the technologies that can form titanium carbide, titanium nitride or titanium carbonitride film on the surfa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C8/00
Inventor 憨勇徐可为
Owner XI AN JIAOTONG UNIV