Method for modifying the surface of stainless steel against microbiologically influenced corrosion
Through two-stage argon plasma cleaning and oxidation treatment, a continuous and uniform oxide film is formed, which solves the problems of poor adhesion and insufficient corrosion resistance of stainless steel surface coatings and improves the resistance of stainless steel to microbial corrosion in marine environments.
CN122833413APending Publication Date: 2026-09-29NORTHEASTERN UNIV CHINA
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Patent Information
- Application Number
- CN202611275138.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-08-21
- Publication Date
- 2026-09-29
AI Technical Summary
Technical Problem
Stainless steel suffers from poor coating adhesion and insufficient corrosion resistance in marine environments due to microbial corrosion (MIC), making it difficult for existing surface treatment technologies to provide long-term protection in highly biologically active environments.
Method used
A two-stage argon plasma cleaning and a two-stage plasma oxidation treatment are adopted to form a continuous, uniform and dense oxide film, which enhances the adhesion and resistance to microbial corrosion of the stainless steel surface.
Benefits of technology
It improves the adhesion between the coating and the substrate on the stainless steel surface, enhances the long-term corrosion resistance in marine microbial environments, and reduces microbial adhesion.
✦ Generated by Eureka AI based on patent content.
Abstract
The application belongs to the technical field of surface modification of marine infrastructure, and particularly relates to a stainless steel surface modification method resistant to microbial corrosion. The application discloses a stainless steel surface modification method resistant to microbial corrosion, which comprises the following steps: placing stainless steel in a reaction chamber, performing two-stage argon plasma cleaning on the surface of the stainless steel through argon plasma in the reaction chamber to obtain initial stainless steel; performing two-stage plasma oxidation on the surface of the initial stainless steel through oxygen plasma in the reaction chamber to form a target oxide film on the surface of the initial stainless steel, and obtaining target stainless steel. The stainless steel surface modification method resistant to microbial corrosion provided by the application enables the target oxide film to have hydrophobic properties, inhibits the adhesion of microorganisms, and improves the marine microbial corrosion resistance of the stainless steel.
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