Anti-Corrosion Flocking Surface with Enhanced Wettability and Evaporation

Area of Science:

• Materials Science
• Surface Engineering
• Corrosion Science

Background:

• Corrosion protection of tool steel is crucial for precision and cost-efficiency.
• Conventional methods often use toxic solvents, harming health and the environment.
• Developing green anti-corrosion strategies is essential.

Purpose of the Study:

• To introduce an integrated laser texturing and electrostatic flocking process as a green anti-corrosion method for high-speed steel (HSS).
• To optimize surface wettability and evaporation performance for enhanced corrosion resistance.
• To evaluate the corrosion protection efficacy of the developed flocking surface.

Main Methods:

• An integrated process combining laser texturing and electrostatic flocking was applied to HSS surfaces.
• Contact corrosion tests were conducted using 0.1 mol/L NaCl droplets.
• Wettability (contact angle) and evaporation properties (droplet mass change) were measured.
• X-ray photoelectron spectroscopy (XPS) was used to characterize corroded surfaces.

Main Results:

• The flocking surface demonstrated synergistic optimization of wettability and evaporation.
• Compared to smooth and textured surfaces, the flocking surface exhibited the lowest degree of corrosion.
• Rapid droplet spread and evaporation on the flocking surface mitigated electrochemical corrosion.
• XPS analysis confirmed reduced corrosion on the flocking surface.

Conclusions:

• The developed flocking surface provides effective corrosion resistance for HSS.
• The mechanism involves rapid droplet evaporation, reducing reaction time and electrochemical corrosion.
• This green anti-corrosion strategy holds significant promise for cutting tool applications.