Method for preparing antibacterial silver-containing stainless steel by surface alloying

Abstract

This disclosure provides a method for preparing antibacterial silver-containing stainless steel through surface alloying, which includes: coating at least one diffusion-assisted medium layer on the surface of the stainless steel; coating at least one silver-containing antibacterial metal layer on the diffusion-assisted medium layer, wherein the silver concentration in the antibacterial metal layer is at least 0.2 wt % or higher; Heat treatment is then performed on the stainless steel to enable the diffusion of the silver antibacterial metal into the stainless steel; As a result, a silver antibacterial alloy layer is formed on the surface of the stainless steel, imparting antibacterial properties and significantly enhancing its corrosion resistance. Additionally, this method is universally applicable to various types of stainless steel and allows for adjustment the concentration of antibacterial alloying elements and the thickness of the alloy layer through process parameter modifications, making it adaptable to different applications and providing broad applicability.

Dependencies are inferred from the claim text.