Workpiece with aluminium-doped titanium diboride coating and preparation method thereof

A titanium diboride, aluminum doping technology, applied in metal material coating process, coating, ion implantation plating and other directions, can solve the problem that the high temperature oxidation resistance is not good enough, the thermal stability of the composite coating is poor, and the processing technology is complicated. and other problems to achieve the effect of improving high temperature oxidation resistance, increasing thermal stability and high temperature resistance, and optimizing performance

Pending Publication Date: 2019-01-04
SHENZHEN INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the invention provides a kind of workpiece with aluminum-doped titanium diboride coating and its preparation method, aiming to solve the existing problems based on TiB 2 The thermal stability of the composite coating is poor, the high temperature oxidation resistance is not good enough, the processing technology is complicated, and the service life is short.

Method used

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  • Workpiece with aluminium-doped titanium diboride coating and preparation method thereof
  • Workpiece with aluminium-doped titanium diboride coating and preparation method thereof
  • Workpiece with aluminium-doped titanium diboride coating and preparation method thereof

Examples

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Embodiment 1

[0037] Such as figure 1 As shown, the workpiece with an aluminum-doped titanium diboride coating provided in Example 1 of the present invention includes a workpiece substrate 10 and an aluminum-doped titanium diboride coating 11 disposed on the workpiece substrate 10, so The aluminum-doped titanium diboride coating 11 includes a titanium diboride hard phase, and aluminum elements uniformly doped in the titanium diboride hard phase. Specifically, the workpiece substrate 10 in this embodiment is a cemented carbide tool.

[0038] Such as figure 2 As shown, the preparation method of a cemented carbide tool with an aluminum-doped titanium diboride coating provided by an embodiment of the present invention includes the following steps:

[0039] 1. Preset target: aluminum target and TiB 2 The ceramic target is the target material. The Al target and TiB 2 The ceramic target is sputtered simultaneously, in which the atomic content of aluminum is 15 at.%, and the two targets are m...

Embodiment 2

[0046] A high-speed steel workpiece with an aluminum-doped titanium diboride coating, comprising a workpiece substrate and an aluminum-doped titanium diboride coating disposed on the workpiece substrate, the aluminum-doped titanium diboride coating comprising Titanium diboride hard phase, and aluminum element uniformly doped in the titanium diboride hard phase.

[0047] A method for preparing a high-speed steel workpiece with an aluminum-doped titanium diboride coating in an embodiment of the present invention includes the following steps:

[0048] 1. Preset target: aluminum doped TiB 2 Ceramic targets are sputtering targets. The Al-doped TiB 2 The atomic content of aluminum in the ceramic target is 12 at.%, installed in such as image 3 Magnetron target position 1 of the magnetron sputtering coating equipment shown;

[0049] 2. Solvent cleaning: first put the high-speed steel in deionized water for ultrasonic cleaning for 15 minutes, then put it in acetone solution for ul...

Embodiment 3

[0055] A cubic boron nitride (CBN) turning tool with an aluminum-doped titanium diboride coating, comprising a workpiece substrate and an aluminum-doped titanium diboride coating arranged on the workpiece substrate, the aluminum-doped titanium diboride coating The heterotitanium diboride coating includes a titanium diboride hard phase, and aluminum elements uniformly doped in the titanium diboride hard phase.

[0056] The present embodiment has the preparation method of the cubic boron nitride (CBN) turning tool of aluminum-doped titanium diboride coating, comprises the following steps:

[0057] 1. Preset target material: aluminum target and TiB 2 When the ceramic target is the target material, the aluminum target and TiB 2 The ceramic target is sputtered at the same time, wherein the atomic content of aluminum is 25 at.%, and the two targets are installed in such as image 3 Magnetron target position 1 and magnetron target position 2 of the magnetron sputtering coating equi...

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Abstract

The invention provides a workpiece with an aluminium-doped titanium diboride coating. The workpiece comprises a workpiece base body and the aluminium-doped titanium diboride coating arranged on the workpiece base body, and the aluminium-doped titanium diboride coating comprises a titanium diboride hard phase and the aluminium element doped in the titanium diboride hard phase. According to the workpiece with the aluminium-doped titanium diboride coating, the aluminium is doped in the titanium diboride, the heat stability of a titanium diboride coating material in the high-speed cutting or dry cutting process is improved, the high-temperature resistance oxidation performance of the coating is improved, the performance of titanium diboride ceramic is optimized, the fracture toughness propertyof the coating is improved, the service life of the coating material is prolonged, the machining accuracy of the workpiece is improved, and the machining cost is greatly reduced when the aluminium element is doped in the coating. The invention further provides a preparation method for the workpiece with the aluminium-doped titanium diboride coating.

Description

technical field [0001] The invention relates to the technical field of ceramic coatings, in particular to a workpiece with an aluminum-doped titanium diboride coating and a preparation method thereof. Background technique [0002] The working environment of metal materials is increasingly complex and changeable. During long-term service, it is always easy to produce defects such as wear, corrosion, and poor toughness on the surface or subsurface of the material. In order to improve the comprehensive mechanical properties of metal materials, the industry usually vacuum-coats a hard protective coating on the surface of metal materials. This type of coating is mainly a hard coating made of ceramic materials. Although it has high strength and high hardness , high melting point, excellent chemical stability and good electrical conductivity, etc., but the fracture toughness of the coating is often unsatisfactory, and it is prone to failure phenomena such as peeling and detachment ...

Claims

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Application Information

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IPC IPC(8): C23C14/06C23C14/35
CPCC23C14/06C23C14/067C23C14/0688C23C14/345C23C14/35C23C14/352
Inventor 唐永炳陈光海蒋春磊
Owner SHENZHEN INST OF ADVANCED TECH
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