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Colored stainless steel based on ion implantation and preparation method thereof

A technology of ion implantation and ion implantation machine, which is applied in the field of colored stainless steel to achieve the effects of high hardness, uniform and firm adhesion, and precise control of process parameters.

Inactive Publication Date: 2013-01-16
WUHAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ion implantation technology has not been used to prepare colored stainless steel

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A colored stainless steel based on ion implantation and a preparation method thereof. Put the stainless steel to be colored into the vacuum chamber of the ion implanter, and evacuate to 0.1Pa~1×10 -5 Pa, Au ion implantation is performed on the surface of stainless steel; the accelerating voltage of Au ion implantation is 60-90KV, and the dose of Au ion implantation is 5×10 17 ~1×10 18 ions / cm 2 , to obtain yellow stainless steel with chromaticity values ​​at L: 85-99, a: -17-0, b: 60-100.

[0025] The surface hardness of the yellow stainless steel prepared in this embodiment is HV317-397, and the surface hardness of the stainless steel before preparation is HV200-230.

Embodiment 2

[0027] A colored stainless steel based on ion implantation and a preparation method thereof. Put the stainless steel to be colored into the vacuum chamber of the ion implanter, and evacuate to 0.1Pa~1×10 -5 Pa, O ion implantation was performed on the surface of stainless steel; the accelerating voltage of O ion implantation was 80-100KV, and the dose of O ion implantation was 1×10 17 ~3×10 17 ions / cm 2 , to obtain light yellow stainless steel with chromaticity values ​​at L: 90-99, a: -7-0, b: 40-60.

[0028] The surface hardness of the light yellow stainless steel prepared in this embodiment is HV377-473, and the surface hardness of the stainless steel before preparation is HV243-278.

Embodiment 3

[0030] A colored stainless steel based on ion implantation and a preparation method thereof. Put the stainless steel to be colored into the vacuum chamber of the ion implanter, and evacuate to 0.1Pa~1×10 -5 Pa, Ti and Ag ions were implanted on the surface of stainless steel; the accelerating voltage of Ti and Ag ions was 40-60KV, and the dose of Ti and Ag ions was 1×10 18 ~6×10 18 ions / cm 2 , the blue stainless steel whose chromaticity value is located at L: 30-60, a:-35--15, b:-40--5 is obtained.

[0031] The surface hardness of the blue stainless steel prepared in this embodiment is HV513-703, and the surface hardness of the stainless steel before preparation is HV257-287.

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Abstract

The invention relates to a colored stainless steel based on ion implantation and a preparation method thereof. The technical scheme is as follows: placing a stainless steel to be colored in a vacuum chamber of an ion implantation apparatus, vacuumizing to 0.1-1*10<-5>Pa, and implanting ions on the surface of the stainless steel to obtain the colored stainless steel, wherein the accelerating voltage for ion implantation is 10-100kV, and the ion implantation amount is 1*10<17>-1*10<19> ions / cm<2>; or placing a stainless steel to be colored in a vacuum chamber of an ion implantation apparatus, vacuumizing to 0.1-1*10<-5>Pa, and implanting ions on the surface of the stainless steel, wherein the accelerating voltage for ion implantation is 10-100kV, and the ion implantation amount is 5*10<15>-5*10<19> ions / cm<2>; and taking out, carrying out heat treatment, and cooling to room temperature in the furnace to obtain the colored stainless steel. The invention has the advantages of simple process and clean environment, and the obtained colored stainless steel has the characteristics of multiple color varieties, high reproducibility, uniform color, beautiful appearance, high durability and no separation. Compared with the stainless steel prior to preparation, the surface hardness and the corrosion resistance are obviously improved.

Description

technical field [0001] The invention belongs to the technical field of colored stainless steel, and in particular relates to a colored stainless steel based on ion implantation and a preparation method thereof. Background technique [0002] Stainless steel has excellent corrosion resistance, wear resistance, toughness and process performance, so it is widely used in aerospace, marine, energy, construction, household appliances and other fields. The natural color of the stainless steel surface can provide an impression of beauty and cleanliness. With the development of the economy and the improvement of living standards, people urgently require the diversification of the colors of stainless steel. Therefore, stainless steel surface treatment technology has been widely concerned. Since the International Nickel Corporation (INCO) announced in 1972 that it had developed the world's first colored stainless steel obtained by chemical coloring of stainless steel, countries have s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/48
Inventor 倪红卫詹玮婷陈荣生邰军凯
Owner WUHAN UNIV OF SCI & TECH
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