Advantages of thermal spray technology in the preparation of amorphous materials

       Compared with the traditional preparation method of amorphous materials, thermal spraying has more advantages. This technology can not only heat up and melt the material rapidly, but also has the characteristics of relatively fast cooling and solidification, which is conducive to the formation of an amorphous coating on the surface of the material. Thermal spraying technology can not only optimize the high efficiency and low cost of thermal spraying, but also obtain better surface coatings such as wear resistance and anticorrosion.



Therefore, it is more advantageous to use thermal spraying technology to prepare amorphous coatings, and its application range is relatively wide, and its development and application prospects are greater.



Nowadays, the use of thermal spraying technology to prepare amorphous processes includes plasma spraying, supersonic spraying and high-speed arc spraying. The raw materials used in plasma spraying and supersonic flame spraying are prefabricated amorphous powders, while high-speed arc spraying is based on materials The idea of integrating preparation and forming is to spray powder core wire containing amorphous coating-forming elements, and the amorphous coating can be formed during the spraying process.



Although there have been many successful cases in the preparation of Fe amorphous nanocomposite coatings using high-speed telephone spraying technology, this technology is still a relatively new field that needs to be studied.



The inspection results of the distance coating show that the coating and the substrate are well combined, the coating structure is relatively dense, the pores are less, and the coating exhibits a layered structure with blood spots, the layers are very close, and the coating is composed of amorphous phase. together with the crystalline phase.