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tialsibnin nanocomposite coating and preparation method and application thereof

A nano-composite coating and nano-composite technology, applied in the coating, metal material coating process, vacuum evaporation plating and other directions, can solve the problem of easy film collapse of coated tools, poor fracture toughness of coatings, and inability to increase coating thickness. Thickness etc.

Active Publication Date: 2022-07-12
广东华升纳米科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fracture toughness of this type of nanocrystalline / amorphous composite structure coating is poor, and the coating tool is easy to collapse during use, the coating thickness cannot be thickened, and the coating is easy to contact with the processed material at high temperature. Reaction occurs and adhesion occurs, which significantly reduces tool life

Method used

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Examples

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Effect test

preparation example Construction

[0044] The present invention also provides a method for preparing the above-mentioned TiAlSiBNiN nanocomposite coating, comprising the following steps:

[0045] In an atmosphere containing nitrogen, an arc ion plating (AIP) film was performed on a TiAl alloy target, and a TiAlN layer was deposited on the substrate;

[0046] In an atmosphere containing nitrogen, a TiAlSiBNi alloy target is used for arc ion plating (AIP) or high-power pulsed magnetron sputtering (HiPIMS) coating, and a TiAlSiBNiN nanocomposite functional layer is deposited on the TiAlN layer.

[0047] Understandably, in the above preparation method, a single arc ion plating (AIP) equipment or a high-power pulsed magnetron sputtering (HiPIMS) can be used for preparation, or an arc ion plating (AIP) equipment and a high-power pulsed magnetron sputtering can be used. prepared using HiPIMS composite equipment. By making full use of the advantages of their respective technologies, it is easier to prepare a hard coat...

Embodiment 1

[0065] This embodiment provides a TiAlSiBNiN nanocomposite coating, which is composed of a transition layer formed by a TiAlN layer and a TiAlSiBNiN nanocomposite functional layer. The atomic percentage content of each element in the TiAlN layer is: Ti: 16%, Al: 33%, N: 51%; the atomic percentage content of each element in the TiAlSiBNiN layer is: Ti is 11%, Al is 21%, and Si is 7%, B is 6%, Ni is 4%, and N is 51%.

[0066] Put the polished YW2 cemented carbide substrate into the ultrasonic cleaning machine, then ultrasonically clean it with acetone and alcohol for 15 minutes in turn, then dry it with hot air and put it into the vacuum chamber of the coating equipment; vacuumize the vacuum chamber of the coating equipment to make the back Bottom vacuum reaches 5.0×10 -3 Below Pa; turn on the vacuum chamber heater to raise the temperature in the vacuum chamber to 540°C; then pass argon gas, adjust the air pressure to 0.6Pa, turn on the bias power supply of the workpiece turnta...

Embodiment 2

[0069] This embodiment provides a TiAlSiBNiN nanocomposite coating, which is composed of a transition layer formed by a TiAlN layer and a TiAlSiBNiN nanocomposite functional layer. The atomic percentage content of each element in the TiAlN layer is: Ti: 20%, Al: 29%, N: 51%; the atomic percentage content of each element in the TiAlSiBNiN layer is: Ti is 15%, Al is 20%, and Si is 6%, B is 3%, Ni is 5%, and N is 51%.

[0070]Put the polished YG8 cemented carbide substrate into the ultrasonic cleaning machine, then ultrasonically clean it with acetone and alcohol for 15 minutes in turn, then dry it with hot air and put it into the vacuum chamber of the coating equipment; vacuumize the vacuum chamber of the coating equipment to make the back Bottom vacuum reaches 5.5×10 -3 Below Pa; turn on the vacuum chamber heater to raise the temperature in the vacuum chamber to 540°C; then pass argon gas, adjust the air pressure to 0.3Pa, turn on the bias power supply of the workpiece turntab...

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Abstract

The invention relates to a TiAlSiBNiN nanocomposite coating, a preparation method and application thereof. The TiAlSiBNiN nanocomposite coating comprises: a TiAlN layer arranged on a substrate; and a TiAlSiBNiN nanocomposite functional layer arranged on the TiAlN layer ; In atomic percent content, the TiAlN layer contains the following elements: 25%-35% Al, 15%-25% Ti and 45%-55% N; In atomic percent content, the TiAlSiBNiN nanocomposite functional layer contains The following elements: 20% to 30% Al, 10% to 20% Ti, 2% to 15% Si, 1% to 10% B, 1% to 10% Ni, and 45% to 55% N. The TiAlSiBNiN nanocomposite coating also has excellent fracture toughness and high temperature lubrication performance under the premise of maintaining high hardness and good high temperature oxidation resistance.

Description

technical field [0001] The invention relates to the technical field of surface protection, in particular to a TiAlSiBNiN nanocomposite coating and a preparation method and application thereof. Background technique [0002] With the development of tool cutting technology, higher requirements are put forward for tool materials and performance. Dry, high-speed and high-precision cutting has become an important direction for tool cutting development. Deposition of hard coating on the surface of the tool has become an important way to improve and improve the cutting performance of the tool. [0003] TiAlN is a ternary nitride hard coating used in traditional methods. Due to its high hardness, high wear resistance and high temperature oxidation resistance, it has been successfully applied in cutting tools and other fields, greatly improving the cutting performance and use of tools. life. However, the operating temperature of TiAlN is generally around 750 °C to 850 °C, and the dr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/06C23C14/32C23C14/35C23C14/02
CPCC23C14/0641C23C14/0688C23C14/325C23C14/3485C23C14/35C23C14/0021C23C14/0036C23C14/345C23C14/022
Inventor 林海天李立升郑礼伟陈松杨恺
Owner 广东华升纳米科技股份有限公司
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