A micro-nano self-organized structure prepared on the surface of stainless steel and its preparation method

Abstract

A micro-nano self-organized structure prepared on the surface of stainless steel and its preparation method. The surface of a single-sided polished stainless steel 316L sheet is polished to a mirror luster, and then placed in acetone, alcohol, and deionized water for ultrasonic cleaning, and a long-pulse fiber laser is used. The cleaned stainless steel 316L sheet is subjected to continuous pulse laser burst processing to generate micro-nano self-organized structures, and then pulsed laser continuous bursts are performed on the micro-nano self-organized structures to prepare large-area two-dimensional self-organized micro-nano structures on the surface of 316L stainless steel. The structure can prepare periodic self-organized micro-nanostructures. This method is easy to operate and has low requirements on the processing environment. According to the processing parameters, periodic micro-nanostructures can be prepared on the surface of 316L stainless steel quickly, at low cost, and in a large area.

Description

technical field [0001] The invention relates to the field of laser surface micro-nano structure processing, in particular to a micro-nano self-organized structure prepared on the surface of stainless steel and a preparation method. Background technique [0002] Conventional preparation methods for micro-nanostructures include surface coating, surface texture modification, chemical treatment, laser processing, ion implantation, and surface etching, etc., to modify the physical and chemical properties of the surface of the object, and optimize the hydrophobicity, drag reduction, and resistance of the surface of the material. Adhesion and other properties enable the original material to realize important new functions such as drag reduction, dustproof and waterproof. [0003] There are also many applications of lasers in the processing of micro-nano structures, mainly including picosecond, femtosecond lasers, fiber lasers, etc. Femtosecond lasers have been widely studied becau...

AI Technical Summary

Problems solved by technology

However, limited by the optical diffraction limit, the precision of fiber laser direct writing processing is limited to the order of microns, and it is impossible to realize the fabrication of structures with nanometer precision.

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