Formula and preparation method of nano and nano-micron carbon material-reinforced ultrafine grain surface layer tissue and steel material with surface layer structure

Abstract

The invention provides a formula of the nano-and nano-micron carbon material-reinforced ultrafine grain surface tissue. The formula comprises a component A, the component A is composed of at least onecomponent of nano-or nano-micron-scale diamond, a carbon nano tube, graphene and fullerene, multi-element thermal diffusion and heat treatment are carried out on the surface layer of the steel or steel product through the nano and nano-micron carbon material, so that the infiltration of the material and the reconstruction of the surface particle reinforced continuous gradient ultra-fine grain structure are realized, and the surface layer and the deep surface layer of the steel or steel product are nano-carbon material reinforced continuous gradient ultrafine grain structures with ultrahigh mechanical physical properties. The nano-micron carbon material and the nano-micron carbon material are mutually used as a main dispersing agent and an infiltration promoting agent, the modified nano-nano-micron carbon material and other dispersing agents are combined through mechanical and chemical methods, a mixture of the penetration enhancer is applied to the surface of steel or steel products and is diffused for several hours under vacuum or anaerobic conditions to achieve high-strength multi-element thermal diffusion of the components into the steel matrix.

Description

technical field [0001] The invention relates to a formula, a preparation method and a steel material having the superfine grain surface structure reinforced by nanometer and nanometer carbon materials. Background technique [0002] Iron and steel materials have always been strategic basic materials. Any technological invention that can greatly improve the performance of iron and steel materials will promote the improvement of the performance of more than 200 kinds of iron and steel materials in the world and the improvement of the performance of various mechanical equipment and the overall technology of the machinery industry. progress. [0003] The performance of the surface and surface layer of steel profiles and steel mechanical parts has special significance in practical engineering applications, such as gears, bearings, springs, mechanical seals, mechanical foundation parts, wear-resistant plates, and wear-resistant pipes. Therefore, the research and development of new...

AI Technical Summary

Problems solved by technology

[0050] ① The surface modification process of steel materials was not invented from the core technology of creating particle-reinforced ultra-fine grain microstructure, which is the core technology for realizing high-performance steel materials;

[0052] ③Nano and nano-micron diamonds are not used as solid dispersants and penetration accelerators for thermal diffusion of other nano-carbon materials; non-nano carbon materials are not used as dispersants for thermal diffusion of nano-nano-micro carbon materials;

[0053] ④ Slurry method Because the matrix is ​​usually selective for accepting and diffusing substances, after a period of diffusion, there will be a slurry layer that can be preferentially selected, and the proportion of diffusing substances in the slurry will decrease, resulting in a slowdown of the diffusion rate and insufficient depth of the diffusion layer;

[0054] ⑤ Neglecting the protection of nano-, nano-micron carbon material multi-particle-reinforced steel-based composite materials as gradient nano-composite products;

[0055] ⑥Dispersion technology does not meet the multiple co-infiltration of nanometer and nanometer materials;

[0061] ⑷The existing technologies mentioned have improved the performance of the material in different degrees and aspects, but there is still a considerable distance from greatly improving the overall performance

[0064] ⑹ None of the above technologies can cover hundreds of steel profiles and thousands of steel machinery parts

Images