Steel-based titanium coating and preparation method and application thereof

A titanium coating and steel-based technology, applied in the coating, metal material coating process, etc., can solve the problems that cannot meet the market demand, affect the bonding performance of the steel substrate and the titanium coating, and achieve good process controllability, Improved toughness and easy availability of raw materials

Pending Publication Date: 2021-12-10
SUN YAT SEN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the direct connection of titanium steel, the iron in the steel matrix material and the titanium in the cladding material are prone to react, resulting in TiFe brittle intermetallic compounds, which affect the bonding performance between the steel matrix and the titanium coating, and cannot meet market demand.

Method used

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  • Steel-based titanium coating and preparation method and application thereof
  • Steel-based titanium coating and preparation method and application thereof
  • Steel-based titanium coating and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A steel-based titanium coating sequentially includes a steel base layer, a copper intermediate layer and a titanium coating.

[0037] A method for preparing a steel-based titanium coating, comprising the following steps:

[0038] S0: Select Q235 steel plate as the base material, use a grinder to remove the scale on the surface of the steel plate, rinse it with alcohol, dry it, and put it on the workbench;

[0039] S1: Select spherical pure copper powder with a particle size of 100 μm, adopt laser cladding technology, set the laser power to 1200W, powder feeding rate to 3g / min, control the cladding speed to 10mm / s, and clad a layer of copper on the surface of the steel substrate Powder, to obtain copper cladding layer;

[0040] S2: Use an angle grinder to remove oxides on the surface of the copper cladding layer to obtain a copper intermediate layer;

[0041] S3: Select spherical TA1 powder with a particle size of 100μm, set the laser power to 1200W, the powder feeding...

Embodiment 2

[0044] The difference between embodiment 2 and embodiment 1 is that in embodiment 2, the powder feeding rate of copper powder in step S2 is 4.5 g / min. The finished product 2 of the steel-based titanium coating embodiment was obtained.

[0045] Wherein, in the obtained steel-based titanium coating example finished product 2, the thickness of the copper intermediate layer is 100 μm (the thickness before cladding the titanium coating is about 250 μm); the thickness of the titanium coating is 1200 μm.

Embodiment 3

[0047] The difference between embodiment 3 and embodiment 1 is that in embodiment 3, the powder feeding rate of copper powder in step S2 is 6 g / min. Example finished product 3 of the steel-based titanium coating was obtained.

[0048] Wherein, in the finished product 3 of the obtained steel-based titanium coating example, the thickness of the copper intermediate layer is 150 μm (the thickness before cladding the titanium coating is about 450 μm); the thickness of the titanium coating is 1200 μm.

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Abstract

The invention belongs to the technical field of metal materials, and discloses a steel-based titanium coating and a preparation method and application thereof. The steel-based titanium coating comprises a copper middle layer. According to the steel-based titanium coating and preparation method and application thereof, the copper middle layer is arranged between a steel base layer and the titanium coating, so that the reaction between iron in the steel base layer and titanium in the titanium coating can be effectively prevented, the binding force between the titanium coating and the steel base body is improved, and the comprehensive performance of the steel-based titanium coating is further improved. According to the steel-based titanium coating and the preparation method and the application thereof, the preparation process of the steel-based titanium coating is simple, raw materials are easy to obtain, the process controllability is good, operability is high, and meanwhile, the prepared steel-based titanium coating is excellent in the comprehensive performance, the toughness of the titanium coating/steel substrate interface can be improved to a certain extent, the bonding strength of the titanium coating and the steel base body is further enhanced, and the steel-based titanium coating is suitable for the field of corrosion prevention, especially for petroleum drilling platforms, ship shells, pipelines and the like in the ocean, and has wide application prospects.

Description

technical field [0001] The invention belongs to the technical field of metal materials, and in particular relates to a steel-based titanium coating and a preparation method and application thereof. Background technique [0002] Titanium is a material with excellent physical properties and stable chemical properties. When working in humid atmosphere or seawater medium, due to the formation of a very stable oxide film on the surface, its corrosion resistance is far superior to that of stainless steel. It is currently the most suitable for various Materials for marine environments. It is widely used in offshore oil drilling platforms, ship shells, pipelines and other areas. However, the high cost of titanium alloys limits its wider application. In terms of the cost of raw materials alone, the price of titanium alloys is several times higher than that of ordinary steel. Big. [0003] The composite of titanium and steel is used as a substitute for pure titanium plates. Industr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10
CPCC23C24/106
Inventor 孙冬柏俞宏英高炜斯佳佳
Owner SUN YAT SEN UNIV
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