Titanium-based mixed powder for laser cladding coating and manufacturing method and application

A technology of mixed powder and laser cladding, applied in coating, metal material coating process, etc., can solve the problems of limited application of titanium alloy parts, easy oxidation, poor wear resistance, etc., to improve high temperature oxidation resistance and improve hardness , the effect of extending the scope of application and foreground
CN110408924AInactive Publication Date: 2019-11-05SHANGHAI JIAO TONG UNIV
3 Cites 3 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI JIAO TONG UNIV
Publication Date
2019-11-05
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses titanium-based mixed powder for preparing a laser cladding coating and relates to the technical field of laser cladding. The titanium-based mixed powder comprises pure Ti and AlB2, wherein the mass percent of AlB2 is 15%-30%, and the rest is pure Ti. The titanium-based mixed powder is prepared through a ball milling technology, in the process of a laser cladding technology,the titanium-based mixed powder and the Ti element generate TiB and Ti3Al second phase particles in a molten pool, and the Ti3Al second phase particles, the Al element in an alpha-Ti coating substrate in a solid solution mode, and oxygen generate Al2O3 on a surface oxide layer in a high temperature oxidation environment. The developed titanium-based mixed powder meets the requirements of high abrasion resistance, high-temperature oxidation resistance and other properties for the cladding layer of the surface of a titanium alloy part, the laser cladding coating is free of cracks, pores, inclusions or other defects, and hardness can reach 800 HV0.3.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of laser cladding, in particular to a titanium-based mixed powder used for laser cladding coatings, a manufacturing method and an application thereof. Background technique

[0002] With the development of laser technology, laser cladding technology has been widely used to modify the surface of parts. The main applications include improving its surface wear resistance, corrosion resistance, and oxidation resistance. Different from traditional surface strengthening technologies such as surface carburizing and thermal spraying, laser cladding technology uses high-energy and high-density laser beams to melt the metal powder and the surface of the substrate at the same time to achieve a metallurgical bond between the coating and the substrate. At the same time, a surface enhanced cladding layer with structure and properties completely different from the base material is obtained on the surface of the substrate. ...

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
Login to View More