Iron-based cored wire including amorphous phase abrasion-resistant and corrosion-resistant coating prepared by utilizing electric arc spraying and preparation method of coating

Abstract

The invention discloses an iron-based cored wire including an amorphous phase abrasion-resistant and corrosion-resistant coating prepared by utilizing electric arc spraying and a preparation method for the coating, and belongs to the field of the thermal spraying in the material processing engineering. Steel band materials for manufacturing a wire casing are stainless steel bands, and the filling rate of the cored wire is from 32% to 34%. The cored wire comprises the following elements in percentage by atoms: 15 to 26 at.% of Cr, 4 to 14 at.% of P, 9 to 18 at.% of Si and 2 to 4 at.% of C. The preparation method for the coating comprises the steps as follows: pre-grinding a matrix surface by using 180 meshes of sand paper and carrying out a blasting treatment on the matrix surface by using 60 meshes of brown aluminium oxide, thereby obtain the cored wire; and preparing the coating by using the electric arc spraying process, wherein the voltage in the spraying process is from 25V to 34V, the current is from 180A to 220A, the spraying distance is from 190mm to 210mm, and the compressed air pressure is from 0.4 Mpa to 0.6 Mpa. The prepared amorphous phase coating has the characteristics high hardness, good abrasion-resistant and corrosion-resistant performance and excellent mechanical performance.

Description

technical field [0001] The invention belongs to the field of thermal spraying in material processing engineering, and is an iron-based powder core wire material used for arc spraying to prepare an amorphous wear-resistant and corrosion-resistant coating. The invention is mainly used in anti-corrosion, anti-wear, etc. various industrial fields. Background technique [0002] Most of the mechanical parts are made of metal materials, which will cause wear due to the interaction of the surface of the matching parts during use; the metal surface of the parts will be corroded due to chemical or electrochemical effects due to the influence of the atmosphere. With the development of modern industry and science and technology, mechanical parts often work under extremely complex and harsh conditions, and a large number of mechanical equipment are often damaged due to wear or corrosion. [0003] Amorphous alloys play an important role in high-tech fields such as aerospace devices, prec...

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is to overcome the disadvantages of the traditional amorphous coating being brittle and unsuitable for engineering applications, and to provide an iron-based powder core wire material for arc spraying to prepare an amorphous phase wear-resistant and corrosion-resistant coating. The arc spraying coating containing amorphous phase prepared by the powder core wire material of the present invention has high hardness, good wear resistance and corrosion resistance, and has good mechanical properties, which can improve the performance of metal structural members and device parts in severe corrosion and wear. Performance in the environment, extended service life

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