研究目的
Investigating the fabrication of organic@functional binding agents@inorganic materials for improving anti-corrosive quality of magnesium alloys.
研究成果
The hybrid MBI@Ni(NO3)2@IL materials demonstrated superior corrosion resistance due to synergistic effects of functional binding agents and organic molecules, forming a dense organic coating that significantly improves the anti-corrosion performance of magnesium alloys in 3.5% NaCl solution.
研究不足
The study focuses on the corrosion resistance improvement of magnesium alloys in aqueous solutions, with potential limitations in other environments or applications. The effectiveness of the hybrid materials may vary with different alloy compositions or under different corrosion conditions.
1：Experimental Design and Method Selection:
The study employed plasma electrolysis (PE) method followed by a two-step dip chemical coating (DCC) method to fabricate organic@functional binding agents@inorganic materials on Mg-3%Al-1%Zn alloy.
2：Sample Selection and Data Sources:
AZ31 Mg alloys were used as samples, prepared by mechanical grinding and cleaning.
3：List of Experimental Equipment and Materials:
Equipment included an AC power supply for PE treatments, SEM-HITACHI S-4800 for surface morphology, XRD RIGAKU D-MAX 2500 for phase composition, XPS VG Microtech ESCA 2000 for chemical composition, and FT-IR Perkin Elmer Spectrum 100 for functional groups analysis. Materials included potassium hydroxide, sodium aluminate, titanium dioxides, NaNO2, Ni(NO3)2·6H2O, and 2-mercaptobenzimidazole (MBI).
4：Experimental Procedures and Operational Workflow:
PE treatments were performed under specific conditions, followed by immersion in NaNO2 or Ni(NO3)2·6H2O solution for F-DCC, then in MBI solution for S-DCC, with subsequent drying and annealing.
5：Data Analysis Methods:
Morphological, structural, and chemical composition analyses were conducted using SEM, XRD, XPS, and FT-IR. Electrochemical measurements were performed using potentiodynamic polarization tests.
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