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Preparation method for amorphous alloy coating

A technology of amorphous alloy and coating, which is applied in the field of preparation of amorphous alloy coating, can solve the problems of high requirements for alloy powder particles, high porosity of alloy coating, easy existence of unmelted particles, etc., and achieve thermal stability Good, strong microhardness and wear resistance, significant production effect

Inactive Publication Date: 2016-12-14
HARBIN INST OF TECH AT WEIHAI
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Problems solved by technology

The traditional preparation methods of amorphous alloy coating mainly include plasma spraying method, arc spraying method and supersonic flame spraying method. Too large will affect the properties of the alloy; the arc spraying method can only spray wire, and the porosity of the alloy coating is high; the supersonic flame spraying method is prone to unmelted particles

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  • Preparation method for amorphous alloy coating
  • Preparation method for amorphous alloy coating
  • Preparation method for amorphous alloy coating

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] Such as figure 1 Shown, the present invention is made up of following steps:

[0018] a. Configuration of alloy powder: According to the atomic molar ratio, the configuration of alloy powder is respectively 34% cobalt, 29% chromium, 8% iron, 8% nickel, 7% silicon and 14% boron;

[0019] b. Substrate pretreatment: first machine the surface of the H13 steel substrate with a grinder to ensure a smooth surface; then use acetone to clean the surface to remove oil and dirt, and then put it in a drying oven for drying; the configured Put the alloy powder into the drying oven together; set the temperature of the drying oven to 100°C, and the action time is 1h;

[0020] c. Coating: Take out the dried alloy powder and the H13 steel base material, pre-place the alloy powder on the surface of the H13 steel base material, and control the ...

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Abstract

The invention discloses a preparation method for an amorphous alloy coating. The preparation method includes the following steps of preparation of alloy powder, pretreatment of a base material, coating and laser cladding. Firstly, the alloy powder is prepared from, by atomic mole ratio, 34% of cobalt, 29% of chromium, 8% of iron, 8% of nickel, 7% of silicon and 14% of boron; then the H13 steel base material is subjected to surface treatment and drying treatment, and the prepared alloy powder is dried together; afterwards, the alloy powder is prearranged on the surface of the H13 steel base material; and finally, a pulse laser device is used for conducting cladding on the prearranged base body in an argon protection hood. According to the alloy coating prepared through the method, about 85% of an amorphous phase is contained in the upper portion, and good metallurgical bonding between the coating and the base body can be achieved; the coating has high microhardness and abrasion resistance and is good in heat stability; and in addition, by means of the method, the production cost of the amorphous alloy coating can be greatly lowered, and the method meets the requirement of the strategy of sustainable development of China, and has great production significance.

Description

technical field [0001] The invention relates to a preparation method, in particular to a preparation method of an amorphous alloy coating. Background technique [0002] Amorphous alloys, also known as metallic glasses, are solidified from liquid alloys under conditions of extremely high cooling rates, and the metal atoms do not have time to arrange in an orderly manner and crystallize, and finally obtain a solid structure with long-range disorder and short-range order. Amorphous alloys have many unique properties, such as excellent magnetic properties, corrosion resistance, wear resistance, high strength, hardness and toughness, high resistivity and electromechanical coupling performance, etc. Currently, research on bulk amorphous alloys is limited by alloy size and high production costs. The preparation of amorphous alloy coatings can not only avoid the disadvantages of appeal, but also obtain its excellent performance. Therefore, amorphous alloy coatings have become a res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C24/10C22C45/04
CPCC22C45/04C23C24/103
Inventor 舒凤远杨彪赵洪运赵一璇贺文雄
Owner HARBIN INST OF TECH AT WEIHAI
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