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Honeycomb-structure multilayer film on metal surface, and preparation method of honeycomb-structure multilayer film

A technology of honeycomb structure and metal surface, which is applied in the direction of metal material coating process, coating, vacuum evaporation plating, etc., can solve the problems of insufficient strength and toughness, and achieve the effect of improving shear strength and excellent geometric mechanical properties

Active Publication Date: 2021-10-29
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a honeycomb structure multilayer film on the metal surface; solve the problem of insufficient strength and toughness caused by the structural characteristics of the layered structure of the multilayer film that is only arranged along a single direction in the prior art

Method used

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  • Honeycomb-structure multilayer film on metal surface, and preparation method of honeycomb-structure multilayer film

Examples

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preparation example Construction

[0025] The present invention proposes a honeycomb configuration multilayer film on a metal surface, and its preparation method specifically includes the following steps:

[0026] Step 1: Pretreat the surface of the metal substrate that needs to be prepared with a multilayer film on the surface, and perform selective etching on the surface of the metal substrate to form a honeycomb structure skeleton on the surface of the metal substrate.

[0027] Step 1.1: Select the metal that needs to be prepared with a multi-layer film on the surface as the substrate, grind and polish the surface, and then clean it with acetone and alcohol in ultrasonic waves.

[0028] Preferably, the base material can be steel, titanium, aluminum, magnesium, tungsten, tantalum, niobium, molybdenum, chromium, and an alloy mainly composed of one of these elements.

[0029] Step 1.2: Make a mask plate with a projected pattern on the surface of the honeycomb wall structure. The side length L of the hexagon of...

Embodiment 1

[0033] This example prepares a honeycomb structure Ti / TiN multilayer film on the surface of low carbon steel Q235, including the following steps:

[0034] Step 1: Pretreat the surface of the low-carbon steel (Q235) plate, and perform selective etching on the surface of the low-carbon steel (Q235) plate to form a honeycomb structure skeleton on the surface of the low-carbon steel (Q235) substrate.

[0035] Step 1.1: Substrate cleaning. Prepare a low carbon steel (Q235) plate, grind and polish its surface with sandpaper, and then clean its surface with acetone and alcohol respectively.

[0036] Step 1.2: Make a mask plate with a projected pattern on the surface of the honeycomb wall structure. The side length L of the hexagon of the honeycomb is 1000 microns, and the wall thickness of the honeycomb is 200 microns.

[0037] Step 1.3: wet etching (hydrochloric acid solution) is used to etch a honeycomb structure on the surface of the low carbon steel Q235 substrate. The etch de...

Embodiment 2

[0041] This example prepares a honeycomb structure Ti / TiN multilayer film on the surface of a titanium alloy (Ti6Al4V), including the following steps:

[0042] Step 1: Pretreat the surface of the titanium alloy (Ti6Al4V) plate, and perform selective etching on the surface of the titanium alloy (Ti6Al4V) plate to form a honeycomb structure skeleton on the surface of the titanium alloy (Ti6Al4V) substrate.

[0043] Step 1.1: Substrate cleaning. Prepare a titanium alloy (Ti6Al4V) plate, grind and polish its surface with sandpaper, and then clean its surface with acetone and alcohol respectively.

[0044] Step 1.2: Make a mask plate with a projected pattern on the surface of the honeycomb wall structure. The side length L of the hexagon of the honeycomb is 10 microns, and the wall thickness of the honeycomb is 2 microns.

[0045] Step 1.3: Laser etching is used to prepare a honeycomb structure skeleton on the surface of the titanium alloy (Ti6Al4V) substrate. The etch depth is 5 ...

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Abstract

The invention discloses a honeycomb-structure multilayer film on a metal surface, and a preparation method of the honeycomb-structure multilayer film. The preparation method of the honeycomb-structure multilayer film comprises the following steps: firstly, etching a honeycomb skeleton on the surface of a metal matrix by adopting a mask etching method; secondly, depositing a multilayer film along the inner wall of the honeycomb skeleton on the surface of the matrix by using a film deposition technology, and finally depositing a layer to flatten the surface to obtain the honeycomb-structure multilayer film. According to the honeycomb-structured multilayer film, the arrangement direction of a layered structure is three-dimensionally changed, so that cracks can be effectively prevented from expanding along three dimensions, and the toughness is improved; and the honeycomb framework on the surface of the metal matrix is beneficial to improving the shear strength.

Description

technical field [0001] The invention belongs to the field of surface modification of metal materials, and in particular relates to a structural design and preparation method of a multilayer film on a metal surface. Background technique [0002] With the rapid development of the manufacturing industry, the requirements for the surface strength and toughness of metal materials are becoming more and more stringent. The preparation of multilayer films is an effective way to improve the surface strength and toughness. The size effect of micro-nanoscale components, the geometric confinement effect of the multi-interface structure, and the ability to passivate cracks and induce crack deflection unique to the layered composite configuration endow multilayer films with excellent strength / hardness and toughness matching. [0003] According to the phase composition of the multilayer film, the metal surface multilayer film used in the manufacturing industry mainly includes metal / metal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/02C23C14/06C23C14/08C23C14/16C23C14/32C23C14/35C23F1/02C23F4/00
CPCC23C14/021C23C14/022C23F1/02C23F4/00C23C14/16C23C14/165C23C14/0641C23C14/0617C23C14/0652C23C14/081C23C14/0635C23C14/35C23C14/325
Inventor 赵梓源王慧陶曹龙李均明钟黎声赵明轩许云华
Owner XIAN UNIV OF TECH
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