Amorphous coating preparation method based on laser cladding and pulsed electron beam irradiation

A technology of pulsed electron beam and laser cladding, which is applied in coating, metal material coating process, etc., to achieve the effect of avoiding coating oxidation, improving hardness and wear resistance, and enriching deformation structure
CN113088959AInactive Publication Date: 2021-07-09ZHONGBEI UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
ZHONGBEI UNIV
Publication Date
2021-07-09
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses an amorphous coating preparation method based on laser cladding and pulsed electron beam irradiation. The preparation method comprises the following steps of firstly, preparing a ZrNiAlCu coating on the surface of a matrix through a laser cladding technology, and then carrying out purification treatment on the surface of the coating by using pulsed electron beam HCPEB irradiation. According to the method, the amorphous content of the alloy coating is increased by utilizing the characteristics of energy concentration, high efficiency, easiness in control and the like of HCPEB irradiation treatment. The surface densification of the laser cladding coating and the homogenization of the cladding alloy are achieved, so that the wear resistance and corrosion resistance are improved. According to the method, ultrafine and even nano-scale refinement of crystal grains on the surface layer of the cladding layer can be further achieved, so that the wear resistance and corrosion resistance of the cladding layer are improved.
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Description

technical field

[0001] The present invention relates to a high-current pulsed electron beam irradiation modification method for laser cladding coatings, in particular to an amorphous coating preparation method based on laser cladding and pulsed electron beam irradiation, which belongs to alloy surface treatment field. Background technique

[0002] Zirconium alloys are solid solutions of zirconium or other metals. Zirconium has a very low thermal neutron absorption cross-section, high hardness, ductility and corrosion resistance. It is mainly used in the field of nuclear technology, such as fuel rods in nuclear reactors. Zirconium alloys cannot meet the requirements of nuclear fuel cladding and pressure tubes in terms of their strength, wear resistance and corrosion resistance. Zirconium is easy to absorb hydrogen, nitrogen and oxygen; zirconium has a strong affinity for oxygen and can easily react with oxygen.

[0003] In recent years, researchers at home and abroad have ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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